size of map with no elements

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Emma
28 Jul 2018
1#include <iostream>
2#include <utility>
3#include <map>
4
5using namespace std;
6
7int main(void)
8{
9    map<int, int> m;
10    cout << m.size();
11}
12
13//Output: 0
Aldo
05 Nov 2020
1map_name.size()
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size of map with no elements