how to use a map c++ code example
Example 1: map declaration c++
#include <map>
#include <string>
std::map<int, std::string> map_;
map_[1] = "mercury";
map_[2] = "mars";
map_.insert(std::make_pair(3, "earth"));
return map_[2];
Example 2: map c++
#include <iostream>
#include <string>
#include <map>
using std::string;
using std::map;
int main() {
map<string, int> myMap = {
{"one", 1},
{"two", 2},
{"three", 3}
};
for (auto& iter: myMap) {
std::cout << iter.first << ": " << iter.second << std::endl;
}
}