Submission #1309964

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Source Code Expand

#include<cstdio>
#include<cstring>
#include<cctype>
#include<algorithm>
#define ll long long
#define INF 100000000
#define clr(x) memset(x,0,sizeof(x))
using namespace std;

inline int read()
{
	register int ret=0,c=getchar();
	while(!isdigit(c))c=getchar();
	while(isdigit(c))ret=ret*10+c-'0',c=getchar();
	return ret;
}

ll n,a,b;

int main()
{
	n=read(),a=read(),b=read();
	printf("%lld\n",max(0LL,(n-2)*(b-a)+1));
	return 0;
}

Submission Info

Judge Result