Submission #976781

#	Time	Username	Problem	Language	Result	Execution time	Memory
976781		AIF_is_carving	Strange Device (APIO19_strange_device)	C++17	5 / 100	1 ms	500 KiB

strange_device

#include<bits/stdc++.h>
 
typedef long long ll;
using namespace std;



int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    ll n, A, B; cin>>n>>A>>B;
    ll x, y; cin>>x>>y;
    ll X = A/(gcd(B+1, A));

    //cout<<X<<"\n";

    ll t;

    //cout<<t<<"\n";

    int powX=0, powB=0;
    ll xxx = X;
    while(xxx>0){
        xxx/=2;
        powX+=1;
    }
    xxx=B;
    while(xxx>0){
        xxx/=2;
        powB+=1;
    }

    if(powB+powX>61) t=2e18;
    else t = B*X;
    //cout<<t<<"\n";

    cout<<min<ll>(y-x+1, t)<<"\n";

    return 0;
}
 

• Subtask 1: 0 / 10
• Subtask 2: 5 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30