Codeforces Solution Archive

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📊 Statistics

Total Problems Solved: 440

Breakdown by Difficulty

Difficulty	Count
800	259
900	84
1000	35
1100	24
1200	14
1300	14
1400	6
1500	3
1600	1

Breakdown by Tags

Tag	Count
*special	6
binary search	14
bitmasks	14
brute force	67
combinatorics	3
communication	2
constructive algorithms	36
data structures	13
dfs and similar	4
dp	22
expression parsing	2
games	10
geometry	2
graph matchings	3
graphs	4
greedy	119
hashing	3
implementation	247
interactive	2
math	135
number theory	22
probabilities	1
schedules	1
shortest paths	3
sortings	46
strings	49
ternary search	1
trees	1
two pointers	13

📋 Solution Index

Problem ID	Problem Name	Difficulty ⇅	Tags	Question	Solution
2167G	G Mukhammadali and the Smooth Array	1600	data structures, dp	View	Code
821C	C Okabe and Boxes	1500	data structures, greedy, ...	View	Code
455A	A Boredom	1500	dp	View	Code
2106D	D Flower Boy	1500	binary search, dp, ...	View	Code
816B	B Karen and Coffee	1400	binary search, data structures, ...	View	Code
520B	B Two Buttons	1400	dfs and similar, graphs, ...	View	Code
279B	B Books	1400	binary search, brute force, ...	View	Code
26B	B Regular Bracket Sequence	1400	greedy	View	Code
2171C2	C 2 Renako Amaori and XOR Game hard version	1400	bitmasks, games, ...	View	Code
1095C	C Powers Of Two	1400	bitmasks, greedy	View	Code
4C	C Registration system	1300	data structures, hashing, ...	View	Code
459B	B Pashmak and Flowers	1300	combinatorics, implementation, ...	View	Code
451B	B Sort the Array	1300	implementation, sortings	View	Code
318B	B Strings of Power	1300	implementation, strings, ...	View	Code
25A	A IQ test	1300	brute force	View	Code
230B	B T primes	1300	binary search, implementation, ...	View	Code
2172M	M Maximum Distance To Port	1300	graphs, shortest paths	View	Code
2169C	C Range Operation	1300	dp, greedy, ...	View	Code
2160C	C Reverse XOR	1300	bitmasks	View	Code
2145C	C Monocarp s String	1300	binary search, greedy, ...	View	Code
189B	B Counting Rhombi	1300	brute force, math	View	Code
189A	A Cut Ribbon	1300	brute force, dp	View	Code
1360D	D Buying Shovels	1300	math, number theory	View	Code
1203C	C Common Divisors	1300	implementation, math	View	Code
977C	C Less or Equal	1200	sortings	View	Code
961B	B Lecture Sleep	1200	data structures, dp, ...	View	Code
870B	B Maximum of Maximums of Minimums	1200	greedy	View	Code
514A	A Chewba ca and Number	1200	greedy, implementation	View	Code
492B	B Vanya and Lanterns	1200	binary search, implementation, ...	View	Code
489B	B BerSU Ball	1200	dfs and similar, dp, ...	View	Code
466A	A Cheap Travel	1200	implementation	View	Code
2218E	The 67th XOR Problem	1200	binary search, bitmasks, ...	View	Code
2182C	C Production of Snowmen	1200	brute force, combinatorics, ...	View	Code
2172E	E Number Maze	1200	implementation	View	Code
2158B	B Split	1200	constructive algorithms, greedy, ...	View	Code
2149D	D A and B	1200	strings	View	Code
1520D	D Same Differences	1200	data structures, hashing, ...	View	Code
1352C	C K th Not Divisible by n	1200	binary search, math	View	Code
755B	B PolandBall and Game	1100	binary search, data structures, ...	View	Code
706B	B Interesting drink	1100	binary search, dp, ...	View	Code
456A	A Laptops	1100	sortings	View	Code
363B	B Fence	1100	brute force, dp	View	Code
313B	B Ilya and Queries	1100	dp, implementation	View	Code
2218D	The 67th OEIS Problem	1100	constructive algorithms, greedy, ...	View	Code
2195C	C Dice Roll Sequence	1100	dp, greedy	View	Code
2185D	D OutOfMemoryError	1100	data structures, implementation, ...	View	Code
2184C	C Huge Pile	1100	binary search, dfs and similar, ...	View	Code
2184B	B Hourglass	1100	math	View	Code
2183B	B Yet Another MEX Problem	1100	constructive algorithms, greedy	View	Code
2179C	C Blackslex and Number Theory	1100	implementation, math, ...	View	Code
2173B	B Niko s Tactical Cards	1100	dp, greedy, ...	View	Code
2171C1	C 1 Renako Amaori and XOR Game easy version	1100	bitmasks, games, ...	View	Code
2169B	B Drifting Away	1100	greedy, implementation	View	Code
2162C	C Beautiful XOR	1100	bitmasks, constructive algorithms, ...	View	Code
2160B	B Distinct Elements	1100	greedy, math	View	Code
2146B	B Merging the Sets	1100	greedy, implementation	View	Code
2137C	C Maximum Even Sum	1100	brute force, greedy, ...	View	Code
2130B	B Pathless	1100	constructive algorithms	View	Code
2065C1	C 1 Skibidus and Fanum Tax easy version	1100	binary search, dp, ...	View	Code
158B	B Taxi	1100	*special, greedy, ...	View	Code
1342B	B Binary Period	1100	constructive algorithms, strings	View	Code
1327A	A Sum of Odd Integers	1100	math	View	Code
742A	A Arpa s hard exam and Mehrdad s naive cheat	1000	implementation, math, ...	View	Code
58A	A Chat room	1000	greedy, strings	View	Code
584A	A Olesya and Rodion	1000	math	View	Code
579A	A Raising Bacteria	1000	bitmasks	View	Code
500A	A New Year Transportation	1000	dfs and similar, graphs, ...	View	Code
499B	B Lecture	1000	implementation, strings	View	Code
491A	A Up the hill	1000	constructive algorithms, implementation	View	Code
476A	A Dreamoon and Stairs	1000	implementation, math	View	Code
43A	96A Football	1000	strings	View	Code
379A	A New Year Candles	1000	implementation	View	Code
339B	B Xenia and Ringroad	1000	implementation	View	Code
230A	A Dragons	1000	greedy, sortings	View	Code
2191B	B MEX Reordering	1000	constructive algorithms, sortings	View	Code
2188B	B Seats	1000	greedy	View	Code
2176B	B Optimal Shifts	1000	bitmasks, greedy, ...	View	Code
2167D	D Yet Another Array Problem	1000	brute force, implementation, ...	View	Code
2164B	B Even Modulo Pair	1000	brute force, math, ...	View	Code
2162B	B Beautiful String	1000	brute force, constructive algorithms	View	Code
2144B	B Maximum Cost Permutation	1000	constructive algorithms, greedy	View	Code
2106C	C Cherry Bomb	1000	greedy, math, ...	View	Code
2093C	C Simple Repetition	1000	math, number theory	View	Code
2092B	B Lady Bug	1000	brute force, constructive algorithms, ...	View	Code
1A	A Theatre Square	1000	math	View	Code
1999B	B Card Game	1000	brute force, constructive algorithms, ...	View	Code
1985C	C Good Prefixes	1000	greedy	View	Code
1913B	B Swap and Delete	1000	strings	View	Code
1374C	C Move Brackets	1000	greedy, strings	View	Code
1353C	C Board Moves	1000	math	View	Code
1342A	A Road To Zero	1000	greedy, math	View	Code
131A	A cAPS lOCK	1000	implementation, strings	View	Code
125B	B Simple XML	1000	implementation	View	Code
124A	A The number of positions	1000	math	View	Code
122A	A Lucky Division	1000	brute force, number theory	View	Code
120A	A Elevator	1000	brute force, implementation, ...	View	Code
118A	A String Task	1000	implementation, strings	View	Code
N/A	ZA Subarray Sums I	900	implementation	View	Code
977B	B Two gram	900	implementation, strings	View	Code
96A	A Football	900	implementation, strings	View	Code
598A	A Tricky Sum	900	math	View	Code
580A	A Kefa and First Steps	900	brute force, dp, ...	View	Code
556A	A Case of the Zeros and Ones	900	greedy	View	Code
474A	A Keyboard	900	implementation	View	Code
460A	A Vasya and Socks	900	brute force, implementation, ...	View	Code
451A	A Game With Sticks	900	implementation	View	Code
405A	A Gravity Flip	900	greedy, implementation, ...	View	Code
34B	B Sale	900	greedy, sortings	View	Code
337A	A Puzzles	900	greedy	View	Code
326175I	I Lucky Numbers	900	implementation	View	Code
320A	A Magic Numbers	900	brute force, greedy	View	Code
318A	A Even Odds	900	math	View	Code
313A	A Ilya and Bank Account	900	implementation, number theory	View	Code
26A	A Almost Prime	900	number theory	View	Code
2195B	B Heapify 1	900	implementation, sortings	View	Code
219432U	U Some Sums	900	implementation	View	Code
219432S	S Sum of Consecutive Odd Numbers	900	implementation	View	Code
219432R	R Sequence of Numbers and Sum	900	implementation	View	Code
219432Q	Q Digits	900	implementation	View	Code
219432P	P Shape 1	900	implementation	View	Code
219432O	O Pyramid	900	implementation	View	Code
219432N	N Numbers Histogram	900	implementation	View	Code
219432M	M Lucky Numbers	900	implementation	View	Code
219432L	L GCD	900	implementation	View	Code
219432K	K Divisors	900	implementation	View	Code
219432J	J Primes from 1 to n	900	implementation	View	Code
219432I	I Palindrome	900	implementation	View	Code
219158Z	Z Hard Compare	900	implementation	View	Code
219158Y	Y The last 2 digits	900	implementation	View	Code
219158X	X Two intervals	900	implementation	View	Code
219158W	W Mathematical Expression	900	implementation	View	Code
219158V	V Comparison	900	implementation	View	Code
219158U	U Float or int	900	implementation	View	Code
219158T	T Sort Numbers	900	implementation	View	Code
219158S	S Interval	900	implementation	View	Code
219158R	R Age in Days	900	implementation	View	Code
219158Q	Q Coordinates of a Point	900	implementation	View	Code
219158P	P First digit	900	implementation	View	Code
219158O	O Calculator	900	implementation	View	Code
219158N	N Char	900	implementation	View	Code
219158M	M Capital or Small or Digit	900	implementation	View	Code
219158L	L The Brothers	900	implementation	View	Code
219158K	K Max and Min	900	implementation	View	Code
219158J	J Multiples	900	implementation	View	Code
219158I	I Welcome for you with Conditions	900	implementation	View	Code
2185C	C Shifted MEX	900	implementation, sortings	View	Code
2178B	B Impost or Sus	900	dp, greedy, ...	View	Code
2171B	B Yuu Koito and Minimum Absolute Sum	900	math	View	Code
2169A	A Alice and Bob	900	greedy, implementation	View	Code
2166B	B Tab Closing	900	math	View	Code
2149C	C MEX rose	900	greedy	View	Code
2110B	B Down with Brackets	900	strings	View	Code
2106B	B St Chroma	900	constructive algorithms, greedy, ...	View	Code
2093B	B Expensive Number	900	greedy, math	View	Code
208A	A Dubstep	900	strings	View	Code
1971C	C Clock and Strings	900	implementation	View	Code
1927B	B Following the String	900	constructive algorithms, greedy, ...	View	Code
1883B	B Chemistry	900	strings	View	Code
1878C	C Vasilije in Cacak	900	math	View	Code
1875A	A Jellyfish and Undertale	900	brute force, greedy	View	Code
1850D	D Balanced Round	900	brute force, greedy, ...	View	Code
1837B	B Comparison String	900	greedy	View	Code
1807D	D Odd Queries	900	data structures, implementation	View	Code
1720A	A Burenka Plays with Fractions	900	math, number theory	View	Code
1714A	A Everyone Loves to Sleep	900	implementation, math	View	Code
1624B	B Make AP	900	implementation, math	View	Code
1613A	A Long Comparison	900	implementation, math	View	Code
160A	A Twins	900	greedy, sortings	View	Code
1535B	B Array Reodering	900	brute force, greedy, ...	View	Code
1494A	A ABC String	900	bitmasks, brute force, ...	View	Code
1475B	B New Year s Number	900	brute force, dp, ...	View	Code
1475A	A Odd Divisor	900	math, number theory	View	Code
1380A	A Three Indices	900	brute force, data structures	View	Code
1374B	B Multiply by 2 divide by 6	900	math	View	Code
1373B	B 01 Game	900	games	View	Code
1343A	A Candies	900	brute force, math	View	Code
133A	A HQ 9	900	implementation	View	Code
106188A	A Einstein s Calculator	900	implementation	View	Code
105981C	C Echoes of the Runes	900	implementation	View	Code
105940I	I The Youngest in ASZoo	900	implementation	View	Code
105940G	G Cheetahs Hunting Deers Easy	900	implementation	View	Code
N/A	100 A B	800	implementation	View	Code
N/A	B Worms	800	implementation	View	Code
N/A	A Range Minimum Query	800	implementation	View	Code
N/A	A AppendAppendAppend	800	implementation	View	Code
9A	Die Roll	800	math, probabilities	View	Code
996A	A Hit the Lottery	800	dp, greedy	View	Code
977A	A Wrong Subtraction	800	implementation	View	Code
959A	A Mahmoud and Ehab and the even odd game	800	games, math	View	Code
80A	A Panoramix s Prediction	800	brute force	View	Code
791A	A Bear and Big Brother	800	implementation	View	Code
785A	A Anton and Polyhedrons	800	implementation, strings	View	Code
758A	A Holiday Of Equality	800	implementation, math	View	Code
734A	B Anton and Danik	800	implementation, strings	View	Code
734A	A Anton and Danik	800	implementation, strings	View	Code
732A	A Buy a Shovel	800	brute force, constructive algorithms, ...	View	Code
71A	A Way Too Long Words	800	strings	View	Code
703A	A Mishka and Game	800	implementation	View	Code
677A	A Vanya and Fence	800	implementation	View	Code
645209C	C Journey	800	implementation	View	Code
645209B	B Coin Transformation	800	implementation	View	Code
645209A	A I m an easy problem	800	implementation	View	Code
644977A	A Four Coprimes	800	implementation	View	Code
643604F	F New Year and Hurry	800	implementation	View	Code
643604E	E The New Year Meeting Friends	800	implementation	View	Code
643604C	C Resistors in Parallel	800	implementation	View	Code
643604B	B Ski Sum	800	implementation	View	Code
643604A	A Free Palestine	800	implementation	View	Code
630A	A Again Twenty Five	800	number theory	View	Code
620A	A Professor GukiZ s Robot	800	implementation, math	View	Code
61A	A Ultra Fast Mathematician	800	implementation	View	Code
617A	A Sum of 2050	800	math	View	Code
617A	A Elephant	800	math	View	Code
59A	A Word	800	implementation, strings	View	Code
581A	A Vasya the Hipster	800	implementation, math	View	Code
546A	A Soldier and Bananas	800	brute force, implementation, ...	View	Code
520A	A Pangram	800	implementation, strings	View	Code
510A	A Fox And Snake	800	implementation	View	Code
509A	A Maximum in Table	800	brute force, implementation	View	Code
4A	A Watermelon	800	brute force, math	View	Code
492A	A Vanya and Cubes	800	implementation	View	Code
490A	Team Olympiad	800	greedy, implementation, ...	View	Code
486A	A Calculating Function	800	implementation, math	View	Code
472A	Design Tutorial Learn from Math	800	math, number theory	View	Code
469A	A I Wanna Be the Guy	800	greedy, implementation	View	Code
467A	A George and Accommodation	800	implementation	View	Code
450Ahttps	A Jzzhu and Children	800	implementation	View	Code
443A	A Anton and Letters	800	constructive algorithms, implementation	View	Code
432A	A Choosing Teams	800	greedy, implementation, ...	View	Code
431A	A Black Square	800	implementation	View	Code
427A	A Police Recruits	800	implementation	View	Code
41A	A Translation	800	implementation, strings	View	Code
381A	A Sereja and Dima	800	greedy, implementation, ...	View	Code
344A	A Magnets	800	implementation	View	Code
339A	A Helpful Maths	800	greedy, implementation, ...	View	Code
32B	B Borze	800	expression parsing, implementation	View	Code
326175H	H Data Type Guessing	800	implementation	View	Code
326175G	G Katryoshka	800	implementation	View	Code
326175F	F Adding Bits	800	implementation	View	Code
326175E	E Interval Sweep	800	implementation	View	Code
326175D	D Ali Baba and Puzzles	800	implementation	View	Code
326175C	C Next Alphabet	800	implementation	View	Code
326175B	B Memo and Momo	800	implementation	View	Code
326175A	A Winter Sale	800	implementation	View	Code
282A	A Bit	800	implementation	View	Code
281A	A Word Capitalization	800	implementation, strings	View	Code
271A	A Beautiful Year	800	brute force	View	Code
268A	A Games	800	brute force	View	Code
266B	B Queue at the School c	800	constructive algorithms, graph matchings, ...	View	Code
266A	A Stones on the Table	800	implementation	View	Code
263A	A Beautiful Matrix	800	implementation	View	Code
236A	A Boy or Girl	800	brute force, implementation, ...	View	Code
231A	A Team	800	brute force, greedy	View	Code
228A	A Is your horseshoe on the other hoof	800	implementation	View	Code
2230B	Digit String	800	implementation	View	Code
2230A	Optimal Purchase	800	implementation	View	Code
2227A	Koshary	800	implementation, math	View	Code
2222B	Artistic Balance Tree	800	greedy, sortings	View	Code
2222A	A Wonderful Contest	800	brute force, dp, ...	View	Code
2218C	The 67th Permutation Problem	800	constructive algorithms, greedy, ...	View	Code
2218B	The 67th 67 Integer Problem	800	greedy, math	View	Code
2218A	The 67th Integer Problem	800	brute force, games, ...	View	Code
2214C	And	800	*special, bitmasks	View	Code
2214B	Are You Smiling	800	*special, strings	View	Code
2214A	Odd One Out	800	*special, graph matchings, ...	View	Code
2211A	Antimedian Deletion	800	implementation, math	View	Code
2204B	B Right Maximum	800	greedy	View	Code
2204A	A Passing the Ball	800	brute force, implementation	View	Code
2197A	A Friendly Numbers	800	binary search, brute force, ...	View	Code
2195A	A Sieve of Erato 67 henes	800	math, number theory	View	Code
2194A	A Lawn Mower	800	greedy, math	View	Code
219432H	H One Prime	800	implementation	View	Code
219432G	G Factorial	800	implementation	View	Code
219432F	F Multiplication table	800	implementation	View	Code
219432E	E Max	800	implementation	View	Code
219432D	D Fixed Password	800	implementation	View	Code
219432C	C Even Odd Positive and Negative	800	implementation	View	Code
219432B	B Even Numbers	800	implementation	View	Code
219432A	A 1 to N	800	implementation	View	Code
2193A	A DBMB and the Array	800	brute force, math	View	Code
2191C	C Sorting Game	800	implementation	View	Code
219158H	H Two numbers	800	implementation	View	Code
219158G	G Summation from 1 to N	800	implementation	View	Code
219158F	F Digits Summation	800	implementation	View	Code
219158E	E Area of a Circle	800	implementation	View	Code
219158D	D Difference	800	implementation	View	Code
219158C	C Simple Calculator	800	implementation	View	Code
219158B	B Basic Data Types	800	implementation	View	Code
219158A	A Say Hello With C	800	implementation	View	Code
2189A	A Table with Numbers	800	greedy, implementation	View	Code
2188C	C Restricted Sorting	800	implementation	View	Code
2188A	A Divisible Permutation	800	constructive algorithms	View	Code
2185B	B Prefix Max	800	greedy	View	Code
2185A	A Perfect Root	800	constructive algorithms, math	View	Code
2184A	A Social Experiment	800	math	View	Code
2183A	A Binary Array Game	800	games	View	Code
2182B	B New Year Cake	800	brute force	View	Code
2182A	A New Year String	800	constructive algorithms, greedy, ...	View	Code
2179B	B Blackslex and Showering	800	dp, greedy, ...	View	Code
2179A	A Blackslex and Password	800	math, strings	View	Code
2178A	A Yes or Yes 2178	800	greedy, strings	View	Code
2176A	A Operations with Inversions	800	greedy, implementation, ...	View	Code
2173A	A Sleeping Through Classes	800	greedy, implementation	View	Code
2172A	A ASCII Art Contest	800	implementation	View	Code
2171A	A Shizuku Hoshikawa and Farm Legs	800	brute force, math	View	Code
2170A	A Maximum Neighborhood	800	bitmasks, brute force, ...	View	Code
2168A2	A 2 Encode and Decode Hard Version	800	bitmasks, communication, ...	View	Code
2168A1	A 1 Encode and Decode Easy Version	800	communication, constructive algorithms, ...	View	Code
2167C	C Isamatdin and His Magic Wand	800	constructive algorithms, greedy, ...	View	Code
2167B	B Your Name	800	sortings, strings	View	Code
2167A	A Square	800	math, sortings	View	Code
2166C	C Cyclic Merging	800	implementation	View	Code
2166A	A Same Difference	800	brute force, greedy, ...	View	Code
2164A	A Sequence Game	800	brute force, sortings	View	Code
2163A	A Souvlaki VS Kalamaki	800	brute force, greedy, ...	View	Code
2162A	A Beautiful Average	800	brute force, greedy	View	Code
2161A	A Round Trip	800	games, greedy, ...	View	Code
2160A	A MEX Partition	800	math	View	Code
2158A	A Suspension	800	constructive algorithms, greedy, ...	View	Code
2157A	A Dungeon Equilibrium	800	greedy, implementation, ...	View	Code
2156A	A Pizza Time	800	brute force, constructive algorithms, ...	View	Code
2155A	A El fucho	800	implementation, math	View	Code
2154A	A Notelock	800	greedy, two pointers	View	Code
2153B	B Bitwise Reversion	800	bitmasks, greedy	View	Code
2153A	A Circle of Apple Trees	800	greedy, sortings	View	Code
2149B	B Unconventional Pairs	800	greedy, sortings	View	Code
2149A	A Be Positive	800	math	View	Code
2148A	A Sublime Sequence	800	brute force, hashing, ...	View	Code
2147A	A Shortest Increasing Path	800	constructive algorithms, greedy	View	Code
2146A	A Equal Occurrences	800	brute force, greedy, ...	View	Code
2145A	A Candies for Nephews	800	math	View	Code
2143A	A All Lengths Subtraction	800	brute force, two pointers	View	Code
2140A	A Shift Sort	800	greedy, sortings	View	Code
2139B	B Cake Collection	800	greedy	View	Code
2139A	A Maple and Multiplication	800	greedy, math	View	Code
2137A	A Collatz Conjecture	800	constructive algorithms, math	View	Code
2133A	A Redstone	800	brute force, data structures, ...	View	Code
2130A	A Submission is All You Need	800	greedy, math	View	Code
2128A	A Recycling Center	800	greedy, sortings	View	Code
2127A	A Mix Mex Max	800	constructive algorithms, greedy, ...	View	Code
2106A	A Dr TC	800	brute force, math	View	Code
2104A	A Three Decks	800	math	View	Code
2094B	B Bobritto Bandito	800	brute force, constructive algorithms	View	Code
2094A	A TrippiTroppi	800	strings	View	Code
2093A	A Ideal Generator	800	math	View	Code
2092A	A Kamilka and the Sheep	800	greedy, math, ...	View	Code
2074A	A Draw a Square	800	geometry, implementation	View	Code
2065A	A Skibidus and Amog u	800	brute force, constructive algorithms, ...	View	Code
2050A	A Line Breaks	800	implementation	View	Code
2044A	A Easy Problem	800	brute force, math	View	Code
2036B	B Startup	800	greedy, sortings	View	Code
2024A	A Profitable Interest Rate	800	greedy, math	View	Code
200B	B Drinks	800	implementation, math	View	Code
2009A	A Minimize	800	brute force, math	View	Code
2000B	B Seating in a Bus	800	two pointers	View	Code
1999C	C Showering	800	greedy, implementation	View	Code
1999A	A A B Again	800	implementation, math	View	Code
1996A	A Legs	800	binary search, math, ...	View	Code
1992A	Only Pluses	800	brute force, constructive algorithms, ...	View	Code
1985B	Maximum Multiple Sum	800	brute force, math, ...	View	Code
1985A	Creating Words	800	implementation, strings	View	Code
1950A	Stair Peak or Neither	800	implementation	View	Code
1926A	A Vlad and the Best of Five	800	implementation	View	Code
1915A	A Odd One Out	800	bitmasks, implementation	View	Code
1914B	Preparing for the Contest	800	constructive algorithms, math	View	Code
1913A	A Rating Increase	800	implementation	View	Code
1903A	A Halloumi Boxes	800	brute force, greedy, ...	View	Code
1901A	Line Trip	800	greedy, math	View	Code
1900A	Cover in Water	800	constructive algorithms, greedy, ...	View	Code
1899A	A Game with Integers	800	games, math, ...	View	Code
1896A	A Jagged Swaps	800	sortings	View	Code
1880A	A Sorted Identity	800	implementation	View	Code
1878A	A How Much Does Daytona Cost	800	greedy	View	Code
1873C	Target Practice	800	implementation, math	View	Code
1873B	B Good Kid	800	brute force, greedy, ...	View	Code
1873A	A Short Sort	800	brute force, implementation	View	Code
1858A	Buttons	800	games, greedy, ...	View	Code
1857A	A Array Coloring	800	greedy, math	View	Code
1850A	A To My Critics	800	implementation, sortings	View	Code
1829B	B Blank Space	800	implementation	View	Code
1829A	Love Story	800	implementation, strings	View	Code
1821A	A Matching	800	combinatorics, math	View	Code
1807A	A Plus or Minus	800	implementation	View	Code
1791C	C Prepend and Append	800	implementation, two pointers	View	Code
1791B	B Following Directions	800	geometry, implementation	View	Code
1791A	A Codeforces Checking	800	implementation, strings	View	Code
1772A	A B	800	implementation	View	Code
1760B	B Atilla s Favorite Problem	800	greedy, implementation, ...	View	Code
1760A	A Medium Number	800	implementation, sortings	View	Code
1746B	B Rebellion	800	constructive algorithms, greedy, ...	View	Code
1742B	B Increasing	800	greedy, implementation, ...	View	Code
1742A	A Sum	800	implementation	View	Code
1722B	B Colourblindness	800	implementation	View	Code
1722A	A Spell Check	800	implementation	View	Code
1720B	B Interesting Sum	800	brute force, data structures, ...	View	Code
1703B	B ICPC Balloons	800	data structures, implementation	View	Code
1703A	A YES or YES	800	brute force, implementation, ...	View	Code
1692B	B All Distinct	800	greedy, sortings	View	Code
1692A	A Marathon	800	implementation	View	Code
1676C	C Most Similar Words	800	brute force, greedy, ...	View	Code
1676B	B Equal Candies	800	greedy, math, ...	View	Code
1676A	A Lucky	800	implementation	View	Code
1669C	C Odd Even Increments	800	greedy, implementation, ...	View	Code
1669B	B Triple	800	implementation, sortings	View	Code
1669A	A Division	800	implementation	View	Code
1624A	Plus One on the Subset	800	math	View	Code
1619A	Square String	800	implementation, strings	View	Code
158A	A Next Round	800	*special, implementation	View	Code
158A	A Domino piling	800	*special, implementation	View	Code
1560A	A Dislike of Threes	800	implementation	View	Code
155A	A I love username	800	brute force	View	Code
1553A	A Digits Sum	800	math, number theory	View	Code
151A	A Soft Drinking	800	implementation, math	View	Code
1512A	A Spy Detected	800	brute force, implementation	View	Code
1498A	A GCD Sum	800	brute force, math	View	Code
148A	A Insomnia cure	800	constructive algorithms, implementation, ...	View	Code
1472B	Fair Division	800	dp, greedy, ...	View	Code
1452C	C Two Brackets	800	greedy	View	Code
144A	A Arrival of the General	800	implementation	View	Code
1433A	Boring Apartments	800	implementation, math	View	Code
141A	A Amusing Joke	800	implementation, sortings, ...	View	Code
1409A	A Yet Another Two Integers Problem	800	greedy, math	View	Code
1399A	A Remove Smallest	800	greedy, sortings	View	Code
1374A	A Required Remainder	800	math	View	Code
1370A	A Maximum GCD	800	greedy, implementation, ...	View	Code
136A	A Presents	800	implementation	View	Code
1367B	Even Array	800	greedy, math	View	Code
1367A	Short Substrings	800	implementation, strings	View	Code
1360A	Minimal Square	800	greedy, math	View	Code
1352A	A Sum of Round Numbers	800	implementation, math	View	Code
1343B	B Balanced Array	800	constructive algorithms, math	View	Code
1335A	A Candies and Two Sisters	800	math	View	Code
1328A	A Divisibility Problem	800	math	View	Code
1283A	A Minutes Before the New Year	800	math	View	Code
1209A	Paint the Numbers	800	greedy, implementation, ...	View	Code
116A	A Tram	800	implementation	View	Code
1154A	A Restoring Three Numbers	800	math	View	Code
112A	A Petya and Strings	800	implementation, strings	View	Code
110A	A Nearly Lucky Number	800	implementation	View	Code
1030A	A In Search of an Easy Problem	800	implementation	View	Code

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