Submission #3738125

---

Source Code Expand

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

int main() {
	ll N, A, B;
	cin >> N >> A >> B;

	if (A > B) {
		cout << 0 << endl;
		return 0;
	}

	if (N == 1) {
		if (A != B) { cout << 0 << endl; }
		else { cout << 1 << endl; }
		return 0;
	}
	
	ll max_sum = B * (N - 1) + A;
	ll min_sum = A * (N - 1) + B;
	ll res = max_sum - min_sum + 1;

	cout << res << endl;

	return 0;
}

Submission Info

Judge Result