oj.uz

Submission #221615

# Submission time Handle Problem Language Result Execution time Memory
221615 2020-04-10T14:15:36 Z Haunted_Cpp Zoo (COCI19_zoo) C++17
110 / 110
 203 ms 46200 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>
#include <iomanip>
 
/*
#pragma GCC optimize ("Ofast")
#pragma GCC target("fma,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")
*/
 
#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 = 1e3 + 5;

char g [N][N];
int comp [N][N];
int lvl [N * N];
vvi grafo (N * N);

int r, c, where = 0;

void dfs (int linha, int coluna, char t) {
  if (linha < 0 || coluna < 0 || linha >= r || coluna >= c) return;
  if (g[linha][coluna] != t) return;
  if (~comp[linha][coluna]) return;
  comp[linha][coluna] = where;
  F0R (i, 4) dfs (linha + dr[i], coluna + dc[i], t);
}

int main () {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cin >> r >> c;
  F0R (i, r) F0R (j, c) cin >> g[i][j];
  memset (comp, -1, sizeof(comp));
  F0R (i, r) F0R (j, c) {
    if (g[i][j] == '*') continue;
    if (~comp[i][j]) continue;
    dfs (i, j, g[i][j]);
    ++where;
  }
  F0R (i, r) {
    F0R (j, c) {
      if (g[i][j] == '*') continue;
      F0R (x, 4) {
        if (i + dr[x] < 0 || j + dc[x] < 0 || i + dr[x] >= r || j + dc[x] >= c) continue;
        if (g[i + dr[x]][j + dc[x]] == '*' || g[i + dr[x]][j + dc[x]] == g[i][j]) continue;
        grafo[comp[i][j]].eb(comp[i + dr[x]][j + dc[x]]);
        grafo[comp[i + dr[x]][j + dc[x]]].eb(comp[i][j]);
      }
    }
  }
  memset (lvl, -1, sizeof(lvl));
  lvl[0] = 1;
  int res = 0;
  queue<int> q;
  q.push(0);
  while (!q.empty()) {
    int node = q.front();
    q.pop();
    res = max (res, lvl[node]);
    GO (to, grafo[node]) {
      if (lvl[to] == -1) {
        lvl[to] = lvl[node] + 1;
        q.push(to);
      }
    }
  }
  cout << res << '\n';
  return 0;
}

Subtask #1
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 32000 KB Output is correct
2 Correct 23 ms 32000 KB Output is correct
3 Correct 24 ms 32000 KB Output is correct
4 Correct 24 ms 32000 KB Output is correct
5 Correct 24 ms 32120 KB Output is correct
6 Correct 24 ms 32128 KB Output is correct
7 Correct 24 ms 32120 KB Output is correct
8 Correct 25 ms 32128 KB Output is correct
9 Correct 25 ms 32256 KB Output is correct
10 Correct 26 ms 32256 KB Output is correct
11 Correct 25 ms 32156 KB Output is correct
12 Correct 26 ms 32256 KB Output is correct
13 Correct 25 ms 32128 KB Output is correct
14 Correct 25 ms 32128 KB Output is correct
15 Correct 25 ms 32128 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 32000 KB Output is correct
2 Correct 23 ms 32000 KB Output is correct
3 Correct 24 ms 32000 KB Output is correct
4 Correct 24 ms 32000 KB Output is correct
5 Correct 24 ms 32120 KB Output is correct
6 Correct 24 ms 32128 KB Output is correct
7 Correct 24 ms 32120 KB Output is correct
8 Correct 25 ms 32128 KB Output is correct
9 Correct 25 ms 32256 KB Output is correct
10 Correct 26 ms 32256 KB Output is correct
11 Correct 25 ms 32156 KB Output is correct
12 Correct 26 ms 32256 KB Output is correct
13 Correct 25 ms 32128 KB Output is correct
14 Correct 25 ms 32128 KB Output is correct
15 Correct 25 ms 32128 KB Output is correct
16 Correct 48 ms 34552 KB Output is correct
17 Correct 52 ms 34680 KB Output is correct
18 Correct 47 ms 34552 KB Output is correct
19 Correct 58 ms 34828 KB Output is correct
20 Correct 45 ms 34680 KB Output is correct
21 Correct 174 ms 45560 KB Output is correct
22 Correct 188 ms 45560 KB Output is correct
23 Correct 192 ms 45560 KB Output is correct
24 Correct 203 ms 46200 KB Output is correct
25 Correct 198 ms 45944 KB Output is correct
26 Correct 176 ms 45816 KB Output is correct
27 Correct 177 ms 45432 KB Output is correct
28 Correct 176 ms 45432 KB Output is correct
29 Correct 179 ms 46072 KB Output is correct
30 Correct 190 ms 45944 KB Output is correct