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87 changes: 87 additions & 0 deletions exercise/01/containers.cpp
Original file line number Diff line number Diff line change
@@ -0,0 +1,87 @@
#include "containers.h"
#include <set>

void remove_element(std::vector<int>& v, int index)
{
v.erase(v.begin() + index);
}

void input_element(std::vector<std::wstring>& v, int index, const std::wstring& value)
{
v.insert(v.begin() + index, value);
}

int list_nth_element(const std::list<int>& c, int index)
{
std::list<int>::const_iterator it = c.begin();

std::advance(it, index);

return *it;
}

void list_sort_desc(std::list<int>& c)
{
c.sort();
c.reverse();
}

int unique_numbers(std::wistream& stream)
{
std::set<int> UniqueNumbers;
int NewNumber;

while (stream >> NewNumber)
{
UniqueNumbers.insert(NewNumber);
}

return UniqueNumbers.size();
}


////////////////////////////////////////////////////////////////////////////
word_frequency::word_frequency(std::wistream& stream)
{
std::wstring InputString;

while (stream >> InputString)
{
CastToLower(InputString);

if (m_Words.find(InputString) != m_Words.end())
{
m_Words[InputString]++;
}
else
{
m_Words[InputString] = 1;
}
}
}


int word_frequency::count()
{
return m_Words.size();
}


int word_frequency::frequency(const std::wstring& word)
{
if (m_Words.find(word) != m_Words.end())
{
return m_Words[word];
}

return 0;
}


void CastToLower(std::wstring& Word)
{
for (wchar_t& Char : Word)
{
Char = std::towlower(Char);
}
}
12 changes: 10 additions & 2 deletions exercise/01/containers.h
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,9 @@
#include <string>
#include <vector>
#include <list>
#include <map>
#include <cwctype>


void remove_element(std::vector<int>& v, int index);
void input_element(std::vector<std::wstring>& v, int index, const std::wstring& value);
Expand All @@ -10,11 +13,16 @@ int list_nth_element(const std::list<int>& c, int index);
void list_sort_desc(std::list<int>& c);

int unique_numbers(std::wistream&);
void CastToLower(std::wstring& word);

class word_frequency
{
public:
word_frequency(std::wistream&);
int frequency(const std::wstring& s);
word_frequency() = default;
word_frequency(std::wistream& stream);
int frequency(const std::wstring& word);
int count();

private:
std::map<std::wstring, int> m_Words;
};
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Original file line number Diff line number Diff line change
@@ -1,97 +1,97 @@
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