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unordered map Question 8

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What is the output of the program:

C++ 
#include <bits/stdc++.h>
using namespace std;

int main()
{
    unordered_map<int, int> m = {{1, 10}, {2, 20}};
    auto it = m.find(1);
    m.erase(it);
    cout << it->second;
    return 0;
}


10

20

Undefined behavior

Compilation error

This question is part of this quiz :

C++ Unordered Map
Tags:
C++ Quiz
C++
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