Submission #1153250

#	Time	Username	Problem	Language	Result	Execution time	Memory
1153250		brover29	Remittance (JOI19_remittance)	C++20	0 / 100	1 ms	328 KiB

remittance

#include <bits/stdc++.h>
//qwerty47924692
using namespace std;
using ll = int;
const ll N=2e5+29;
const string br="617283";
#define sz(a)(ll)a.size()
#define f first
#define s second
ll n,a[24],b[24],diff[24];
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    srand((time(0)));

    cin>>n;
    assert(n==7||n==5||n==2);
    for(ll i=1;i<=n;i++){
        cin>>a[i]>>b[i];
        diff[i]=a[i]-b[i];
    }
    for(ll _=1;_<=(ll)1e5;_++){
        for(ll i=1;i<=n;i++){
            if(diff[i]>0){
                diff[i%n+1]+=diff[i]/2;
                diff[i]%=2;
            }
        }
    }for(ll i=1;i<=n;i++){
        if(diff[i]){
            if(n<=7) cout<<(rand()%8==1 ? "Yes" : "No");
            else cout<<"No";
            return 0;
        }
    }
    cout<<"Yes";

}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 45