oj.uz

Submission #218227

# Submission time Handle Problem Language Result Execution time Memory
218227 2020-04-01T14:59:25 Z Haunted_Cpp Monthly railway pass (LMIO18_menesinis_bilietas) C++17
100 / 100
 572 ms 59624 KB 
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <cassert>
#include <string>
#include <cstring>
#include <bitset>
#include <random>
#include <chrono>
 
#define FOR(i, a, b) for(int i = a; i < (int) b; i++)
#define F0R(i, a) FOR (i, 0, a)
#define ROF(i, a, b) for(int i = a; i >= (int) b; i--)
#define R0F(i, a) ROF(i, a, 0)
#define GO(i, a) for (auto i : a)
 
#define rsz resize
#define eb emplace_back
#define pb push_back
#define sz(x) (int) x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define f first
#define s second
 
using namespace std;
 
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
typedef vector<vi> vvi;
typedef vector<vpii> vvpii;
typedef long long i64;
typedef vector<i64> vi64;
typedef vector<vi64> vvi64;
typedef pair<i64, i64> pi64;
typedef vector<pi64> vpi64;

const int dr[] = {+1, -1, +0, +0, +1, -1, +1, -1};
const int dc[] = {+0, +0, +1, -1, +1, -1, -1, +1};
const int ms[] = {+31, +29, +31, 30, +31, +30, +31, +31, +30, +31, +30, +31};

const int N = 5e5 + 5;

vvi g (N);
vvi bus (N);
vi color (N, -1);

bool vis [N], valid_color [N];
int group = 0;

void dfs (int node) {
  vis[node] = true;
  color[node] = group;
  GO (to, g[node]) {
    if (!vis[to]) {
      vis[to] = true;
      dfs (to);
    }
  }
}

set<int> unique_color;

void solve (int node) {
  vis[node] = true;
  unique_color.insert(color[node]);
  GO (to, bus[node]) {
    unique_color.insert(color[to]);
  }
  GO (to, g[node]) {
    if (!vis[to]) {
      vis[to] = true;
      solve (to);
    }
  }
}

int main () {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int n, m;
  cin >> n >> m;
  F0R (i, m) {
    char tipo;
    int st, et;
    cin >> st >> et >> tipo;
    --st; --et;
    if (tipo == 'T') {
      g[st].eb(et);
      g[et].eb(st);
    } else {
      bus[st].eb(et);
      bus[et].eb(st);
    }
  }
  F0R (i, n) {
    if (!vis[i]) {
      dfs (i);
      ++group;
    }
  }
  int res = 0;
  memset (vis, 0, sizeof(vis));
  F0R (i, n) {
    if (!vis[i]) {
      unique_color.clear();
      solve (i);
      if (sz(unique_color) == group) valid_color[color[i]] = true;
    }
  }
  F0R (i, n) {
    if (valid_color[color[i]]) ++res;
  }
  cout << res << '\n';
  return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 41464 KB Output is correct
2 Correct 18 ms 26368 KB Output is correct
3 Correct 19 ms 26368 KB Output is correct
4 Correct 41 ms 26368 KB Output is correct
5 Correct 19 ms 26240 KB Output is correct
6 Correct 68 ms 28920 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 26368 KB Output is correct
2 Correct 18 ms 26240 KB Output is correct
3 Correct 19 ms 26368 KB Output is correct
4 Correct 21 ms 26368 KB Output is correct
5 Correct 19 ms 26240 KB Output is correct
6 Correct 239 ms 32352 KB Output is correct
7 Correct 572 ms 59624 KB Output is correct
8 Correct 37 ms 27512 KB Output is correct
9 Correct 39 ms 27640 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 26368 KB Output is correct
2 Correct 18 ms 26240 KB Output is correct
3 Correct 19 ms 26368 KB Output is correct
4 Correct 21 ms 26368 KB Output is correct
5 Correct 22 ms 26368 KB Output is correct
6 Correct 22 ms 26368 KB Output is correct
7 Correct 18 ms 26368 KB Output is correct
8 Correct 18 ms 26240 KB Output is correct
9 Correct 22 ms 26496 KB Output is correct
10 Correct 18 ms 26240 KB Output is correct
11 Correct 19 ms 26368 KB Output is correct
12 Correct 18 ms 26240 KB Output is correct
13 Correct 19 ms 26368 KB Output is correct
14 Correct 19 ms 26368 KB Output is correct
15 Correct 21 ms 26368 KB Output is correct
16 Correct 18 ms 26368 KB Output is correct
17 Correct 19 ms 26368 KB Output is correct
18 Correct 18 ms 26240 KB Output is correct
19 Correct 19 ms 26368 KB Output is correct
20 Correct 21 ms 26368 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 26368 KB Output is correct
2 Correct 18 ms 26240 KB Output is correct
3 Correct 19 ms 26368 KB Output is correct
4 Correct 21 ms 26368 KB Output is correct
5 Correct 22 ms 26368 KB Output is correct
6 Correct 22 ms 26368 KB Output is correct
7 Correct 18 ms 26368 KB Output is correct
8 Correct 18 ms 26240 KB Output is correct
9 Correct 22 ms 26496 KB Output is correct
10 Correct 18 ms 26240 KB Output is correct
11 Correct 19 ms 26368 KB Output is correct
12 Correct 18 ms 26240 KB Output is correct
13 Correct 19 ms 26368 KB Output is correct
14 Correct 19 ms 26368 KB Output is correct
15 Correct 21 ms 26368 KB Output is correct
16 Correct 28 ms 26744 KB Output is correct
17 Correct 148 ms 31608 KB Output is correct
18 Correct 62 ms 28280 KB Output is correct
19 Correct 102 ms 29048 KB Output is correct
20 Correct 55 ms 27896 KB Output is correct
21 Correct 108 ms 29048 KB Output is correct
22 Correct 18 ms 26368 KB Output is correct
23 Correct 19 ms 26368 KB Output is correct
24 Correct 18 ms 26240 KB Output is correct
25 Correct 19 ms 26368 KB Output is correct
26 Correct 21 ms 26368 KB Output is correct
27 Correct 19 ms 26240 KB Output is correct
28 Correct 37 ms 27512 KB Output is correct
29 Correct 39 ms 27640 KB Output is correct
30 Correct 68 ms 28920 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 26368 KB Output is correct
2 Correct 18 ms 26240 KB Output is correct
3 Correct 19 ms 26368 KB Output is correct
4 Correct 21 ms 26368 KB Output is correct
5 Correct 22 ms 26368 KB Output is correct
6 Correct 22 ms 26368 KB Output is correct
7 Correct 18 ms 26368 KB Output is correct
8 Correct 18 ms 26240 KB Output is correct
9 Correct 22 ms 26496 KB Output is correct
10 Correct 18 ms 26240 KB Output is correct
11 Correct 19 ms 26368 KB Output is correct
12 Correct 18 ms 26240 KB Output is correct
13 Correct 19 ms 26368 KB Output is correct
14 Correct 19 ms 26368 KB Output is correct
15 Correct 21 ms 26368 KB Output is correct
16 Correct 28 ms 26744 KB Output is correct
17 Correct 148 ms 31608 KB Output is correct
18 Correct 62 ms 28280 KB Output is correct
19 Correct 102 ms 29048 KB Output is correct
20 Correct 55 ms 27896 KB Output is correct
21 Correct 108 ms 29048 KB Output is correct
22 Correct 426 ms 41464 KB Output is correct
23 Correct 18 ms 26368 KB Output is correct
24 Correct 19 ms 26368 KB Output is correct
25 Correct 41 ms 26368 KB Output is correct
26 Correct 18 ms 26240 KB Output is correct
27 Correct 19 ms 26368 KB Output is correct
28 Correct 21 ms 26368 KB Output is correct
29 Correct 19 ms 26240 KB Output is correct
30 Correct 239 ms 32352 KB Output is correct
31 Correct 572 ms 59624 KB Output is correct
32 Correct 54 ms 28024 KB Output is correct
33 Correct 355 ms 34844 KB Output is correct
34 Correct 211 ms 32888 KB Output is correct
35 Correct 37 ms 27512 KB Output is correct
36 Correct 39 ms 27640 KB Output is correct
37 Correct 68 ms 28920 KB Output is correct