oj.uz

답안 #393245

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
393245 2021-04-23T04:50:22 Z parsabahrami 철인 이종 경기 (APIO18_duathlon) C++17
0 / 100
 59 ms 9208 KB 
/* There's someone in my head but it's not me */ 
#include <bits/stdc++.h>
 
using namespace std;

typedef long long int ll;
typedef pair<int, int> pii;

#define SZ(x)                       (int) x.size()
#define F                           first
#define S                           second

const int N = 1e5 + 10, MOD = 1e9 + 7;
int s, n, m, M[N]; vector<int> adj[N];

void DFS(int v) {
    s++;
    M[v] = 1;
    for (int u : adj[v]) 
        if (!M[u]) DFS(u);
}

int main() {
    scanf("%d%d", &n, &m);
    for (int i = 1; i <= m; i++) {
        int u, v; scanf("%d%d", &u, &v);
        adj[u].push_back(v);
        adj[v].push_back(u);
    }
    ll ret = 0;
    for (int i = 1; i <= n; i++) {
        if (M[i]) continue;
        s = 0; 
        DFS(i);
        ret += s * (s - 1) * (s - 2);
    }
    printf("%lld\n", ret);
    return 0;
}

Compilation message

count_triplets.cpp: In function 'int main()':
count_triplets.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   24 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
count_triplets.cpp:26:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |         int u, v; scanf("%d%d", &u, &v);
      |                   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2656 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Incorrect 2 ms 2652 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2656 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Incorrect 2 ms 2652 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 58 ms 9208 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 2636 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 56 ms 6256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 2636 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 59 ms 6240 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2656 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Incorrect 2 ms 2652 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2656 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Incorrect 2 ms 2652 KB Output isn't correct
8 Halted 0 ms 0 KB -