code. compile. run. debug. share.
Source Code
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#include <iostream>
#include <string>
#include <vector>
void stats(const std::vector<std::vector<std::string>>& vec) {
std::vector<std::pair<std::string, int>> orderedCards;
for (const auto& client : vec){ //scan database for cards and make ordered vector of pairs
if (orderedCards.empty()){ //insert first pair to empty vector
std::cout << "insert: make_pair(" << client[1] << ",1\n";
orderedCards.push_back(std::make_pair(client[1],1));
}else{ //for each new client scan vector and add new client/increment counter
std::cout <<"start loop\n";
for (auto pair = orderedCards.begin(); pair != orderedCards.end(); ++pair){
std::cout << client[1][0] << " : " << pair->first[0] << "\n";
if (client[1][0] < pair->first[0]){ //compare first letter of new client and existing client
orderedCards.insert(pair, std::make_pair(client[1], 1));// if its smaller, insert in front
break;// break iteration and go for next client
} else if (client[1] == pair->first){ //if theyre the same, increment counter
pair->second+=1;
break;
} else if (pair+1 == orderedCards.end()){ //if end is reached, there was no existing client thus add new one with high letter
orderedCards.push_back(std::make_pair(client[1], 1));
}
std::cout <<"end loop\n";
}
}
}
std::cout <<"second loop\n";
for (const auto& count : orderedCards)
std::cout<<count.first<<" "<<count.second<<std::endl; //print on each line card and counter
}
std::vector<std::vector<std::string>> dataBase;
int main()
{
dataBase={{"name", "bankcard"},{"name", "visa"},{"name", "bankcard"},{"name", "mastercard"},{"name", "bankcard"},{"name", "visa"}};
stats(dataBase);
return 0;
}
Compiling Program...
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