oj.uz

Submission #721113

# Submission time Handle Problem Language Result Execution time Memory
721113 2023-04-10T10:19:47 Z YENGOYAN Stranded Far From Home (BOI22_island) C++17
20 / 100
 1000 ms 39700 KB 
        /*
                                                    //\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\\
                                                    \\                                    //
                                                    //  271828___182845__904523__53602__  \\
                                                    \\  87___47____13______52____66__24_  //
                                                    //  97___75____72______47____09___36  \\
                                                    \\  999595_____74______96____69___67  //
                                                    //  62___77____24______07____66__30_  \\
                                                    \\  35___35____47______59____45713__  //
                                                    //                                    \\
                                                    \\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\//
        */
        #include <iostream>
        #include <vector>
        #include <set>
        #include <map>
        #include <unordered_map>
        #include <unordered_set>
        #include <cmath>
        #include <climits>
        #include <algorithm>
        #include <random>
        #include <queue>
        #include <deque>
        #include <iomanip>
        #include <string>
        #include <tuple>
        #include <bitset>
        #include <chrono>
        #include <ctime>
        #include <fstream>
        #include <stack>
        #include <cstdio>
        #include <functional>
         
        using namespace std;
        using LL = long long;
        const int N = 1e5 + 5;
        const LL mod = 1e9 + 7, inf = 1e18;
         
        vector<int> dx = { 1, 0, 0, -1, 1, 1, -1, -1 };
        vector<int> dy = { 0, 1, -1, 0, 1, -1, 1, -1 };
         
        void solve() {
          int n, m; cin >> n >> m;
          vector<int> s(n);
          map<int, vector<int>> srt;
          for(int i = 0; i < n; ++i){
            cin >> s[i];
            srt[s[i]].push_back(i);
          }
          vector<int> t = s;
          sort(t.begin(), t.end());
          vector<vector<int>> gp(n);
          for(int i = 0; i < m; ++i){
            int u, v; cin >> u >> v;
            gp[--u].push_back(--v);
            gp[v].push_back(u);
          }
          vector<LL> par(n), sz(n);
          for(int i = 0; i < n; ++i){
            par[i] = i;
            sz[i] = s[i];
          }
          string ans(n, '1');
          vector<int> vis(n, -1);
          function<int(int)> check = [&](int u){
            if(ans[u] == '0') return 0;
            if(par[u] == u) return 1;
            int r = check(par[u]);
            if(!r) ans[u] = '0';
            return r;
          };
          function<LL(LL)> get = [&](LL u){
            if(par[u] == u) return u;
            if(!check(u)) ans[u] = '0';
            return par[u] = get(par[u]);
          };
          function<void(int u, int v)> unions = [&](int u, int v){
            int a = get(u), b = get(v);
            if(a == b) return;
            par[b] = a;
            sz[a] += sz[b];
          };
          for(auto x : srt){
            vector<int> nodes = x.second;
            int cnt = x.first;
            for(int &u : nodes){
              for(int &v : gp[u]){
                if(s[v] <= s[u]){
                  int p = get(v);
                  if(sz[p] < cnt){
                    ans[p] = '0';
                  }
                }
              }
            }
            for(int &u : nodes) {
              for(int &v : gp[u]){
                if(s[v] <= s[u]){
                  unions(u, v);
                }
              }
            }
          }
          vis = vector<int> (n, -1);
          for(int i = 0; i < n; ++i){
            get(i);
            cout << ans[i];
          }
          cout << "\n";
        }
         
        int main() {
          ios_base::sync_with_stdio(false);
          cin.tie(NULL);
          // int t; cin >> t; while (t--)
          solve();
         
        }

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 3 ms 596 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 3 ms 596 KB Output is correct
12 Correct 3 ms 596 KB Output is correct
13 Correct 3 ms 468 KB Output is correct
14 Correct 3 ms 468 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 200 ms 39652 KB Output is correct
4 Correct 201 ms 19176 KB Output is correct
5 Correct 227 ms 38316 KB Output is correct
6 Correct 216 ms 34452 KB Output is correct
7 Correct 290 ms 39700 KB Output is correct
8 Correct 253 ms 19280 KB Output is correct
9 Correct 203 ms 34472 KB Output is correct
10 Correct 203 ms 35200 KB Output is correct
11 Correct 133 ms 19996 KB Output is correct
12 Correct 226 ms 19224 KB Output is correct
13 Correct 155 ms 19336 KB Output is correct
14 Correct 212 ms 19100 KB Output is correct
15 Correct 224 ms 39648 KB Output is correct
16 Correct 173 ms 39204 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 466 ms 39408 KB Output is correct
3 Correct 351 ms 34444 KB Output is correct
4 Correct 190 ms 19244 KB Output is correct
5 Correct 162 ms 19232 KB Output is correct
6 Correct 413 ms 39640 KB Output is correct
7 Correct 306 ms 39596 KB Output is correct
8 Correct 242 ms 39576 KB Output is correct
9 Correct 179 ms 39172 KB Output is correct
10 Execution timed out 1070 ms 33016 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 286 ms 18736 KB Output is correct
3 Correct 336 ms 18792 KB Output is correct
4 Correct 230 ms 18832 KB Output is correct
5 Correct 274 ms 19184 KB Output is correct
6 Correct 308 ms 18340 KB Output is correct
7 Execution timed out 1065 ms 21696 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 3 ms 596 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 3 ms 596 KB Output is correct
12 Correct 3 ms 596 KB Output is correct
13 Correct 3 ms 468 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 200 ms 39652 KB Output is correct
18 Correct 201 ms 19176 KB Output is correct
19 Correct 227 ms 38316 KB Output is correct
20 Correct 216 ms 34452 KB Output is correct
21 Correct 290 ms 39700 KB Output is correct
22 Correct 253 ms 19280 KB Output is correct
23 Correct 203 ms 34472 KB Output is correct
24 Correct 203 ms 35200 KB Output is correct
25 Correct 133 ms 19996 KB Output is correct
26 Correct 226 ms 19224 KB Output is correct
27 Correct 155 ms 19336 KB Output is correct
28 Correct 212 ms 19100 KB Output is correct
29 Correct 224 ms 39648 KB Output is correct
30 Correct 173 ms 39204 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 466 ms 39408 KB Output is correct
33 Correct 351 ms 34444 KB Output is correct
34 Correct 190 ms 19244 KB Output is correct
35 Correct 162 ms 19232 KB Output is correct
36 Correct 413 ms 39640 KB Output is correct
37 Correct 306 ms 39596 KB Output is correct
38 Correct 242 ms 39576 KB Output is correct
39 Correct 179 ms 39172 KB Output is correct
40 Execution timed out 1070 ms 33016 KB Time limit exceeded
41 Halted 0 ms 0 KB -