Submission #335091

#	Time	Username	Problem	Language	Result	Execution time	Memory
335091		Mo_TOI_I_am_Garbage	Remittance (JOI19_remittance)	C++14	0 / 100	1 ms	364 KiB

remittance

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a; cin >> a;
	pair<int, int> arr[a + 50];
	for(int i=0; i < a; i ++)
		cin >> arr[i].first >> arr[i].second;
	while(true)
	{
		bool yes = false;
		for(int i=0; i < a; i ++)
		{
			if(arr[i].first < arr[i].second + 2) continue;
			int t = arr[i].first - arr[i].second;
			arr[i].first -= t * 2;
			if(i == a - 1) arr[0].first += t;
			else		   arr[i + 1].first += t;
			yes = true;
		}
		if(!yes) break;
	}
	bool yes1 = true, yes2 = true;
	for(int i=0; i < a; i ++)
	{
		if(arr[i].first != arr[i].second) yes1 = false;
		if(arr[i].first != arr[i].second + 1 || arr[i].first < 2) yes2 = false;
	}
	if(yes1 || yes2) cout << "Yes";
	else			 cout << "No";
}

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