oj.uz

답안 #771870

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
771870 2023-07-03T10:46:55 Z CyberCow 철인 이종 경기 (APIO18_duathlon) C++17
0 / 100
 1000 ms 1048576 KB 
//#include <bits/stdc++.h>
#include <random>
#include <algorithm>
#include <bitset>
#include <chrono>
#include <cmath>
#include <deque>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include <chrono>
#define fr first
#define sc second
#define ad push_back
using namespace std;
using ll = long long;
mt19937 rnd(348502);
const int N = 300005;
vector<ll> v[N];
ll sz[N];
ll color[N];
ll guyn = 0;
ll chap;

void Dfs(ll g)
{
    sz[g] = 1;
    color[g] = 1;
    for (auto to : v[g])
    {
        if (color[to] == 0)
        {
            Dfs(to);
            sz[g] += sz[to];
        }
    }
}

ll koxqan = 0;

void Dfs1(ll g, ll guyn, int p)
{
    koxqan += sz[g] * (chap - sz[g]);
    for (auto to : v[g])
    {
        if (color[to] == guyn && to != p)
        {
            Dfs1(to, guyn, g);
        }
    }
}

void solve()
{
    ll n, i, j, x, y, m;
    cin >> n >> m;
    vector<pair<ll, ll>> kox;
    for ( i = 0; i < m; i++)
    {
        cin >> x >> y;
        kox.push_back({ x, y });
        v[x].push_back(y);
        v[y].push_back(x);
    }
    ll ans = 0;
    for ( i = 1; i <= n; i++)
    {
        if (color[i] == 0)
        {
            koxqan = 0;
            guyn++;
            Dfs(i);
            chap = sz[i];
            Dfs1(i, guyn, -1);
            ans += koxqan - (chap * (chap - 1) / 2);
        }
    }
    cout << ans * 2;
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ll tt = 1;
    //cin >> tt;
    while (tt--) {
        solve();
    }
    return 0;
}

Compilation message

count_triplets.cpp: In function 'void solve()':
count_triplets.cpp:64:14: warning: unused variable 'j' [-Wunused-variable]
   64 |     ll n, i, j, x, y, m;
      |              ^

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 482 ms 1048576 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 482 ms 1048576 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1090 ms 648932 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 3 ms 7400 KB Output is correct
4 Correct 5 ms 7380 KB Output is correct
5 Correct 4 ms 7412 KB Output is correct
6 Correct 7 ms 7388 KB Output is correct
7 Correct 5 ms 7420 KB Output is correct
8 Correct 6 ms 7376 KB Output is correct
9 Correct 5 ms 7384 KB Output is correct
10 Incorrect 5 ms 7380 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 14620 KB Output is correct
2 Correct 49 ms 14524 KB Output is correct
3 Correct 44 ms 14716 KB Output is correct
4 Correct 52 ms 14776 KB Output is correct
5 Correct 46 ms 14848 KB Output is correct
6 Correct 66 ms 17808 KB Output is correct
7 Correct 46 ms 17284 KB Output is correct
8 Correct 46 ms 16660 KB Output is correct
9 Correct 58 ms 16240 KB Output is correct
10 Incorrect 51 ms 15312 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7380 KB Output is correct
2 Correct 4 ms 7448 KB Output is correct
3 Runtime error 552 ms 1048576 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 15424 KB Output is correct
2 Correct 56 ms 15348 KB Output is correct
3 Runtime error 603 ms 1048576 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 482 ms 1048576 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 482 ms 1048576 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -