oj.uz

Submission #533770

# Submission time Handle Problem Language Result Execution time Memory
533770 2022-03-07T07:46:11 Z FronPaw Ronald (COCI17_ronald) C++14
75 / 120
 45 ms 2244 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
map <int, int> fr;
bool ok1 (int n)
{
	bool good = true;
	int cate = n - 1;
	for (auto it:fr)
		if (it.second != cate)
			good = false;
	return good;
}
main ()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n, m;
	cin >> n >> m;
	for (int i = 1;i<=m;++i)
	{
		int a, b;
		cin >> a >> b;
		fr[a]++, fr[b]++;
	}
	if (ok1(n))
	{
		cout << "DA";
		return 0;
	}
	bool ok = 1;
	for (auto it:fr)
	{
		if (it.second % 2 == 0)
			ok = 0;
	}
	if (ok == 1)
		cout << "DA";
	else
		cout << "NE";
	return 0;
}

Compilation message

ronald.cpp:14:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   14 | main ()
      | ^~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 308 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 312 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 312 KB Output is correct
2 Incorrect 0 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 204 KB Output is correct

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 320 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 12 ms 808 KB Output is correct
3 Correct 4 ms 460 KB Output is correct
4 Correct 3 ms 328 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 304 KB Output is correct
2 Correct 8 ms 584 KB Output is correct
3 Correct 31 ms 1620 KB Output is correct
4 Correct 45 ms 2244 KB Output is correct