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Submission #643988

# Submission time Handle Problem Language Result Execution time Memory
643988 2022-09-23T11:52:39 Z elif Logičari (COCI21_logicari) C++17
10 / 110
 15 ms 1484 KB 
#include <bits/stdc++.h>
using namespace std;

int main(){

	ios_base::sync_with_stdio(0);

	int n;
	cin >> n;
	for(int i=0; i<n; i++){
		int u, v;
		cin >> u >> v;
	}

	if(n % 4)
		cout << -1 << endl;

	else cout << n/2 << endl;


	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 15 ms 1456 KB Output is correct
6 Correct 15 ms 1460 KB Output is correct
7 Correct 15 ms 1484 KB Output is correct
8 Correct 14 ms 1464 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 15 ms 1456 KB Output is correct
6 Correct 15 ms 1460 KB Output is correct
7 Correct 15 ms 1484 KB Output is correct
8 Correct 14 ms 1464 KB Output is correct
9 Incorrect 0 ms 212 KB Output isn't correct
10 Halted 0 ms 0 KB -