C++ map begin() code example
Example 1: c++ map iterator
#include <iostream>
#include <map>
int main() {
std::map<int, float> num_map;
// calls a_map.begin() and a_map.end()
for (auto it = num_map.begin(); it != num_map.end(); ++it) {
std::cout << it->first << ", " << it->second << '\n';
}
}
Example 2: map::begin
a => 200
b => 100
c => 300