oj.uz

답안 #771794

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
771794 2023-07-03T09:27:56 Z gagik_2007 철인 이종 경기 (APIO18_duathlon) C++17
8 / 100
 105 ms 15360 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

ll ttt;
const ll INF=1e18;
const ll MOD=1e9+7;
const ll N=3e5+7;
ll n,m,k;
vector<int>g[N];
bool used[N];
bool cu[N];

bool is_cycle(int v, int par){
    if(used[v])return true;
    used[v]=true;
    for(int to:g[v]){
        if(to!=par){
            if(is_cycle(to, v))return true;
        }
    }
    return false;
}

int length(int v){
    cu[v]=true;
    int cnt=1;
    for(int to:g[v]){
        if(!cu[to]){
            cnt+=length(to);
        }
    }
    return cnt;
}

int main() {
    cin>>n>>m;
    for(int i=0;i<m;i++){
        int x,y;
        cin>>x>>y;
        g[x].push_back(y);
        g[y].push_back(x);
    }
    ll ans=0;
    for(int v=0;v<n;v++){
        if(!used[v]){
            ll cnt=length(v);
            if(is_cycle(v, v)){
                ans+=cnt*(cnt-1)*(cnt-2);
            }
            else{
                ans+=cnt*(cnt-1)*(cnt-2)/3;
            }
        }
    }
    cout<<ans<<endl;
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 7252 KB Output is correct
2 Correct 3 ms 7252 KB Output is correct
3 Correct 3 ms 7252 KB Output is correct
4 Correct 4 ms 7304 KB Output is correct
5 Correct 3 ms 7252 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Incorrect 3 ms 7252 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 7252 KB Output is correct
2 Correct 3 ms 7252 KB Output is correct
3 Correct 3 ms 7252 KB Output is correct
4 Correct 4 ms 7304 KB Output is correct
5 Correct 3 ms 7252 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Incorrect 3 ms 7252 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 15300 KB Output is correct
2 Correct 105 ms 15360 KB Output is correct
3 Correct 90 ms 13000 KB Output is correct
4 Correct 69 ms 14076 KB Output is correct
5 Correct 78 ms 12200 KB Output is correct
6 Correct 65 ms 12216 KB Output is correct
7 Correct 65 ms 11520 KB Output is correct
8 Correct 65 ms 11864 KB Output is correct
9 Correct 65 ms 11016 KB Output is correct
10 Correct 79 ms 11436 KB Output is correct
11 Correct 54 ms 10572 KB Output is correct
12 Correct 52 ms 10416 KB Output is correct
13 Correct 48 ms 10428 KB Output is correct
14 Correct 51 ms 10328 KB Output is correct
15 Correct 36 ms 10096 KB Output is correct
16 Correct 37 ms 9932 KB Output is correct
17 Correct 4 ms 7508 KB Output is correct
18 Correct 4 ms 7508 KB Output is correct
19 Correct 4 ms 7508 KB Output is correct
20 Correct 4 ms 7508 KB Output is correct
21 Correct 4 ms 7508 KB Output is correct
22 Correct 5 ms 7508 KB Output is correct

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4 ms 7380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 69 ms 10772 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 7316 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 70 ms 10748 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 7252 KB Output is correct
2 Correct 3 ms 7252 KB Output is correct
3 Correct 3 ms 7252 KB Output is correct
4 Correct 4 ms 7304 KB Output is correct
5 Correct 3 ms 7252 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Incorrect 3 ms 7252 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 7252 KB Output is correct
2 Correct 3 ms 7252 KB Output is correct
3 Correct 3 ms 7252 KB Output is correct
4 Correct 4 ms 7304 KB Output is correct
5 Correct 3 ms 7252 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Incorrect 3 ms 7252 KB Output isn't correct
8 Halted 0 ms 0 KB -