Submission #1309652

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Source Code Expand

// ayy
// ' lamo
#include <bits/stdc++.h>
#include <bits/extc++.h>
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef long double ld; //CARE
typedef complex<ld> pt;
#define fi first
#define se second
#define pb push_back
const ld eps=1e-8;
const int inf=1e9+99;
const ll linf=1e18+99;
const int P=1e9+7;









int32_t main() {
	ll n,a,b; cin>>n>>a>>b;
	ll mn=a*(n-1)+b;
	ll mx=a+b*(n-1);
	if(mn>mx) return cout<<0<<endl,0;
	cout<<mx-mn+1<<endl;
}

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