Submission #1265398

#	Time	Username	Problem	Language	Result	Execution time	Memory
1265398		k12_khoi	Remittance (JOI19_remittance)	C++17	0 / 100	399 ms	468 KiB

remittance

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

#define ll long long

const int N=1e6+5;

ll n,a[N],b[N],c[N],save[N];
bool ok;

void ql(int i)
{
    if (i>n)
    {
        for (int i=1;i<=n;i++)
        c[i]=a[i];

        for (int i=1;i<=n;i++)
        {
            c[i]-=save[i]*2;
            c[i%n+1]+=save[i];
        }

        ok=true;
        for (int i=1;i<=n;i++)
        if (c[i]!=b[i])
        {
            ok=false;
            break;
        }

        if (ok)
        {
            cout << "Yes";
            exit(0);
        }

        return;
    }

    for (save[i]=0;save[i]<=10;save[i]++)
    ql(i+1);
}

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

    cin >> n;
    for (int i=1;i<=n;i++)
    cin >> a[i] >> b[i];

    ql(1);

    cout << "No";
}

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