Submission #740593

#	Time	Username	Problem	Language	Result	Execution time	Memory
740593		alexdd	송금 (JOI19_remittance)	C++17	0 / 100	1 ms	316 KiB

remittance

#include<bits/stdc++.h>
using namespace std;
int dif[1000005];
int n;
bool notdone()
{
    for(int i=0; i<n; i++)
        if(dif[i]>1)
            return 1;
    return 0;
}
signed main()
{
    cin>>n;
    int a,b;
    for(int i=0; i<n; i++)
    {
        cin>>a>>b;
        dif[i]=a-b;
    }
    while(notdone())
    {
        for(int i=0; i<n; i++)
            if(dif[i]>0)
                dif[(i+1)%n]+=dif[i]/2, dif[i]%=2;
    }
    for(int i=0; i<n; i++)
    {
        if(dif[i]!=0)
        {
            cout<<"No";
            return 0;
        }
    }
    cout<<"Yes";
    return 0;
}

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