Submission #1309727

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <cmath>
#include <cassert>
#include <vector>
#include <string>
#include <set>
#include <map>
#include <queue>
#include <stack>
#include <algorithm>
using namespace std;


typedef long long i64;
const int inf = (int)1.05e9;


int main()
{
	int n, a, b;

	scanf("%d%d%d", &n, &a, &b);

	if(n == 1) {
		printf("%d\n", a == b ? 1 : 0);
		return 0;
	}

	if(a > b) {
		printf("0\n");
		return 0;
	}

	i64 mi = ((i64)a * (n - 1) + b);
	i64 ma = ((i64)b * (n - 1) + a);
	i64 c = ma - mi + 1;

	printf("%lld\n", c);

	return 0;
}

/* waffle */

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &n, &a, &b);
                             ^

Judge Result