#include <bits/stdc++.h>
using namespace std;
#define int long long
const int mxN = 5007;
vector<int> g[mxN];
int32_t main() {
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int n, m;
cin >> n >> m;
for (int i = 0; i < m; ++i) {
int u, v;
cin >> u >> v;
g[u].push_back(v);
g[v].push_back(u);
}
set<int> left;
left.clear();
for (int u = 1; u <= n; ++u) {
left.insert(u);
}
for (int u = 1; u <= n; ++u) {
if (!left.count(u)) {
continue;
}
set<int> check = {u};
for (auto v : g[u]) {
check.insert(v);
}
for (int v = 1; v <= n; ++v) {
if (!check.count(v) && left.count(v)) {
left.erase(u);
left.erase(v);
break;
}
}
}
assert((int)left.size() >= n / 3);
auto it = left.begin();
for (int i = 0; i < n / 3; ++i) {
cout << *it << ' ';
++it;
}
cout << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
860 KB |
Output is correct |
2 |
Correct |
25 ms |
3164 KB |
Output is correct |
3 |
Correct |
28 ms |
3164 KB |
Output is correct |
4 |
Correct |
27 ms |
3160 KB |
Output is correct |
5 |
Correct |
26 ms |
3332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
16 ms |
2392 KB |
Output is correct |
2 |
Correct |
112 ms |
10216 KB |
Output is correct |
3 |
Correct |
112 ms |
10416 KB |
Output is correct |
4 |
Correct |
112 ms |
10320 KB |
Output is correct |
5 |
Correct |
108 ms |
10320 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
37 ms |
3420 KB |
Output is correct |
2 |
Correct |
266 ms |
23408 KB |
Output is correct |
3 |
Correct |
281 ms |
23292 KB |
Output is correct |
4 |
Correct |
266 ms |
23312 KB |
Output is correct |
5 |
Correct |
267 ms |
23380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
83 ms |
8592 KB |
Output is correct |
2 |
Correct |
378 ms |
33716 KB |
Output is correct |
3 |
Correct |
404 ms |
34132 KB |
Output is correct |
4 |
Correct |
402 ms |
34128 KB |
Output is correct |
5 |
Correct |
393 ms |
34408 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
255 ms |
24660 KB |
Output is correct |
2 |
Correct |
460 ms |
38496 KB |
Output is correct |
3 |
Correct |
500 ms |
38080 KB |
Output is correct |
4 |
Correct |
525 ms |
38412 KB |
Output is correct |
5 |
Correct |
490 ms |
38308 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
463 ms |
36336 KB |
Output is correct |
2 |
Correct |
627 ms |
45372 KB |
Output is correct |
3 |
Correct |
725 ms |
45732 KB |
Output is correct |
4 |
Correct |
657 ms |
45652 KB |
Output is correct |
5 |
Correct |
660 ms |
45484 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
623 ms |
43092 KB |
Output is correct |
2 |
Correct |
752 ms |
64252 KB |
Output is correct |
3 |
Correct |
823 ms |
64336 KB |
Output is correct |
4 |
Correct |
794 ms |
62296 KB |
Output is correct |
5 |
Correct |
829 ms |
62656 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
744 ms |
37904 KB |
Output is correct |
2 |
Runtime error |
367 ms |
65536 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
346 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
385 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |