#ifndef _GLIBCXX_NO_ASSERT
#include <cassert>
#endif
#include <cctype>
#include <cerrno>
#include <cfloat>
#include <ciso646>
#include <climits>
#include <clocale>
#include <cmath>
#include <csetjmp>
#include <csignal>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#if __cplusplus >= 201103L
#include <ccomplex>
#include <cfenv>
#include <cinttypes>
#include <cstdbool>
#include <cstdint>
#include <ctgmath>
#include <cwchar>
#include <cwctype>
#endif
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <typeinfo>
#include <utility>
#include <valarray>
#include <vector>
#include <array>
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <forward_list>
#include <future>
#include <initializer_list>
#include <mutex>
#include <random>
#include <ratio>
#include <regex>
#include <scoped_allocator>
#include <system_error>
#include <thread>
#include <tuple>
#include <typeindex>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#include <fstream>
#define endl '\n'
#define int long long
#define mod 1000000007;
using namespace std;
vector<int>adj[200001];
int sz[200001],vs[200001];
void dfs(int x){
vs[x] = 1;
for(auto s: adj[x]){
if(!vs[s]){
dfs(s);
sz[x] += sz[s];
}
}
sz[x]++;
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
int n,m, ans = 0; cin >> n >> m;
for(int i = 0; i < m; i++){
int a,b; cin >> a >> b;
adj[a].push_back(b);
adj[b].push_back(a);
}
for(int i = 1; i <= n; i++){
for(int j = 1; j <= n; j++) vs[j] = sz[j] = 0;
dfs(i);
for(int j = 1; j <= n; j++){
if(i == j) continue;
ans += sz[j] - 1;
}
}
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
4948 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
4948 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1087 ms |
17164 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
5032 KB |
Output is correct |
2 |
Correct |
19 ms |
5076 KB |
Output is correct |
3 |
Correct |
17 ms |
5032 KB |
Output is correct |
4 |
Correct |
22 ms |
5036 KB |
Output is correct |
5 |
Correct |
19 ms |
5116 KB |
Output is correct |
6 |
Correct |
19 ms |
5076 KB |
Output is correct |
7 |
Correct |
22 ms |
5032 KB |
Output is correct |
8 |
Correct |
20 ms |
5032 KB |
Output is correct |
9 |
Correct |
19 ms |
5124 KB |
Output is correct |
10 |
Incorrect |
15 ms |
5096 KB |
Output isn't correct |
11 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1076 ms |
11484 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
16 ms |
5076 KB |
Output is correct |
2 |
Correct |
18 ms |
5076 KB |
Output is correct |
3 |
Incorrect |
19 ms |
5076 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1080 ms |
11492 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
4948 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
4948 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |