Submission #1766561

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Source Code Expand

#include <iostream>
#include <vector>
#include <algorithm>
#include <string.h>
#include <stdio.h>
#include <cmath>
#include <math.h>
#include <sstream>
#include <iomanip>
#include <time.h>
#include <fstream>

using namespace std;

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

Submission Info

Judge Result