Submission #1167862

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Source Code Expand

#include <iostream>
#include <vector>
#include <algorithm>

int main(void) {
    int X;

    std::cin >> X;

    int p = 0;
    for (int i = 1; i <= X; i++) {
        p += i;

        if (p >= X) {
            std::cout << i << std::endl;
            return 0;
        }
    }
}

Submission Info

Judge Result