Submission #1311243

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <cmath>
#include <string>
#include <array>
#include <vector>
#include <functional>
#include <numeric>
#include <limits>
#include <utility>
using namespace std;
typedef long long longlong;
typedef long long LL;

int main(void) {
	LL a, b, n, i, j, k, mi, ma, ans;
	cin >> n >> a >> b;
	if (a > b) {
		cout << 0 << endl;
		return 0;
	}
	mi = a*(n - 2);
	ma = b*(n - 2);
	ans = ma - mi;
	++ans;
	if (ans > 0) {
		cout << ans << endl;
	}
	else {
		cout << 0 << endl;
	}
	return 0;
}

Submission Info

Judge Result