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freqCalc.cpp
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freqCalc.cpp
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//Frequency Calculator Program
//Mackenzie Broughton
//March 6, 2020
//this program lets a user input a sentence and then calculates the frequency of words and letters.
#include <iostream>
#include <string>
#include <iomanip>
#include <cassert>
#include <vector>
#include <cmath>
#include <algorithm>
#include <iterator>
#include <array>
#include <cctype>
#include <map>
using namespace std;
typedef map<string, int> sentence;
typedef pair<string, int> senPair;
typedef map<char, int> letter;
typedef pair<char, int> letPair;
char toLower(char);
bool sortByFreq1(const senPair&, const senPair&);
bool sortByWord(const senPair&, const senPair&);
bool sortByFreq2(const letPair&, const letPair&);
bool sortByLetter(const letPair&, const letPair&);
vector<senPair> mapToVector1(sentence, vector<senPair>);
vector<letPair> mapToVector2(letter, vector<letPair>);
void print1(vector<senPair>);
void print2(vector<senPair>);
void print3(vector<letPair>);
void print4(vector<letPair>);
void getSentence(sentence&, letter&);
bool sortByFreq1(const senPair& i, const senPair& j){
return (i.second > j.second);
}
bool sortByWord(const senPair& i, const senPair& j){
return (i.first < j.first);
}
bool sortByFreq2(const letPair& i, const letPair& j){
return (i.second > j.second);
}
bool sortByLetter(const letPair& i, const letPair& j){
return (i.first < j.first);
}
char toLower(char c){
return tolower(c);
}
void print1(vector<senPair> V){
cout << left << setw(15) << "Words" <<
left << setw(15) << "Frequency" << endl;
cout << "------------------------------" << endl;
for(vector<senPair>::iterator it = V.begin(); it != V.end(); it++){
cout << left << setw(15) << it -> first <<
left << setw(15) << it -> second << endl;
}
cout << endl;
}
void print2(vector<senPair> V){
cout << left << setw(15) << "Frequency" <<
left << setw(15) << "Words" << endl;
cout << "------------------------------" << endl;
for(vector<senPair>::iterator it = V.begin(); it != V.end(); it++){
cout << left << setw(15) << it -> second <<
left << setw(15) << it -> first << endl;
}
cout << endl;
}
void print4(vector<letPair> L){
cout << left << setw(15) << "Letters" <<
left << setw(15) << "Frequency" << endl;
cout << "------------------------------" << endl;
for(vector<letPair>::iterator it = L.begin(); it != L.end(); it++){
cout << left << setw(15) << it -> first <<
left << setw(15) << it -> second << endl;
}
cout << endl;
}
void print3(vector<letPair> L){
cout << left << setw(15) << "Frequency" <<
left << setw(15) << "Letters" << endl;
cout << "------------------------------" << endl;
for(vector<letPair>::iterator it = L.begin(); it != L.end(); it++){
cout << left << setw(15) << it -> second <<
left << setw(15) << it -> first << endl;
}
cout << endl;
}
vector<senPair> mapToVector1(sentence senMap, vector<senPair> V){
for(sentence::const_iterator it = senMap.begin(); it != senMap.end(); it++){
V.push_back(make_pair(it -> first, it -> second));
}
return V;
}
vector<letPair> mapToVector2(letter letMap, vector<letPair> L){
for(letter::const_iterator it = letMap.begin(); it != letMap.end(); it++){
L.push_back(make_pair(it -> first, it -> second));
}
return L;
}
void getSentence(sentence& senMap, letter &letMap){
string word;
cout << "Input a sentence: " << "\n>> ";
while(cin >> word){
transform(word.begin(), word.end(), word.begin(), toLower);
senMap[word]++;
for(unsigned int i = 0; i < word.length(); i++){
letMap[word[i]]++;
}
}
}
int main(){
vector<senPair> V;
vector<letPair> L;
sentence senMap;
letter letMap;
getSentence(senMap, letMap);
V = mapToVector1(senMap, V);
L = mapToVector2(letMap, L);
//sort by frequency
cout << "\nWords sorted by frequency:" << endl;
sort(V.begin(), V.end(), sortByFreq1);
print2(V);
//sort by word
cout << "Words sorted alphabetically:" << endl;
sort(V.begin(), V.end(), sortByWord);
print1(V);
//sort letters by frequency
cout << "Letters sorted by frequency:" << endl;
sort(L.begin(), L.end(), sortByFreq2);
print3(L);
//sort letters by letter
cout << "Letters sorted alphabetically:" << endl;
sort(L.begin(), L.end(), sortByLetter);
print4(L);
return 0;
}