Submission #2232462

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Source Code Expand

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

using ll = long long;

#define REP(i, n) for (int i = 0; i < (n); ++i)
#define SIZE(a) ((int)(a).size())

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);

	int n, a, b;
	cin >> n >> a >> b;
	if (a > b) {
		cout << 0 << '\n';
		return 0;
	}

	if (n == 1) {
		if (a != b) {
			cout << 0 << '\n';
		} else
		cout << 1 << '\n';
		return 0;
	}

	cout << 1LL*(n-2)*(b-a)+1 << '\n';

	return 0;
}

Submission Info

Judge Result