Submission #1309839

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Source Code Expand

#include<cstdio>
#include<algorithm>
using namespace std;

int read_p,read_ca;
inline int read(){
	read_p=0;read_ca=getchar();
	while(read_ca<'0'||read_ca>'9') read_ca=getchar();
	while(read_ca>='0'&&read_ca<='9') read_p=read_p*10+read_ca-48,read_ca=getchar();
	return read_p;
}
int n,a,b;
int main(){
	n=read();a=read();b=read();
	if (n==1){
		printf("%d\n",a==b);
		return 0;
	}
	if (a>b) puts("0");else
	printf("%lld\n",1LL*(b-a)*(n-2)+1);
}

Submission Info

Judge Result