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Submission #203925

# Submission time Handle Problem Language Result Execution time Memory
203925 2020-02-23T03:47:42 Z AQT Remittance (JOI19_remittance) C++14
0 / 100
 5 ms 376 KB 
#include <bits/stdc++.h>

using namespace std;

int N;
long long arr[1000005], brr[1000005];

int main(){
	cin.sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> N;
	for(int i = 0; i<N; i++){
		cin >> arr[i] >> brr[i];
	}
	int cnt = 0;
	for(int i = 0; cnt < N; cnt++, i++, i%=N){
		if(arr[i] == 1 && brr[i] == 0 || arr[i] <= brr[i]){
			cnt++;	
		}
		else{
			long long d = arr[i]-brr[i];
			d += d&1;
			if(d > arr[i]){
				d-=2;
			}
			arr[(i+1)%N] += d/2;
			arr[i] -= d;
			cnt = 0;
		}
	}
	bool b = 1;
	for(int i = 0; i<N; i++){
		if(arr[i] != brr[i]){
			b = 0;
		}
	}
	cout << (b ? "Yes" : "No") << endl;
}

Compilation message

remittance.cpp: In function 'int main()':
remittance.cpp:18:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if(arr[i] == 1 && brr[i] == 0 || arr[i] <= brr[i]){
      ~~~~~~~~~~~~^~~~~~~~~~~~~~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Incorrect 5 ms 376 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Incorrect 5 ms 376 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Incorrect 5 ms 376 KB Output isn't correct
5 Halted 0 ms 0 KB -