Submission #1310275

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Source Code Expand

#include<bits/stdc++.h>

#define FOR(i, a, b) for(int(i)=(a);(i)<(b);(i)++)
#define REP(i, n) FOR((i), 0, (n))

#define RFOR(i, b, a) for(int(i)=(b); (i)>=(a); (i)--)
#define RREP(i, n) FOR((i), (n), 0)

#define pb push_back
#define mp make_pair 

using namespace std;

const int INF=INT_MAX/4;
const int MOD=1000000007;
const double EPS=1e-14;

const bool debug_flag=true;

void debug(string str){
	if(debug_flag){
		cout<<str<<endl;
	}
}

void debugs(string str){
	if(debug_flag){
		cout<<str;
	}
}

int main(int argc, char* argv[]){
	cin.tie(0);
	ios::sync_with_stdio(0);
	cout.precision(10);

	long N, A, B;
	cin>>N>>A>>B;
	if(A>B){
		cout<<0<<endl;
	}else if(N==1 && A!=B){
		cout<<0<<endl;
	}else if(N<=2){
		cout<<1<<endl;
	}else{
		cout<<A+(N-1)*B-(B+(N-1)*A)+1<<endl;
	}

	return 0;
}

Submission Info

Judge Result