Submission #11236837

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
using pint = pair<int,int>;
ll mod = 1000000007,mod2 = 998244353;

void chmin(long long &a, long long b) { if (a > b) a = b; }
void chmax(long long &a, long long b) { if (a < b) a = b; }
const long long INF = 1LL<<60;
ll gcd(ll a,ll b){
    if(b == 0) return a;
    else return gcd(b,a%b);
}

int main() {
    ll n,a,b;
    cin >> n >> a >> b;
    if(a > b){
        cout << 0 << endl;
        return 0;
    }
    if(a == b && n == 1){
        cout << 1 << endl;
    }else if(a != b && n == 1){
        cout << 0 << endl;
    }else{
        cout << n*(b-a)+2*a-2*b+1 << endl;
    }
    return 0;
}

Submission Info

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