Submission #1315042

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Source Code Expand

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

int main()
{
    int n, a, b;
    cin >> n >> a >> b;
    if (a > b || (n == 1 && a != b)) cout << 0 << endl;
    else if (n <= 2) cout << 1 << endl;
    else cout << (b * (n - 1ll) + a) - (b + a * (n - 1ll)) + 1 << endl;
}

Submission Info

Judge Result