Submission #1602829

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Source Code Expand

#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#include<vector>
#include<utility>
#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007
using namespace std;

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

Submission Info

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