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Submission #1060998

# Submission time Handle Problem Language Result Execution time Memory
1060998 2024-08-16T05:22:29 Z onbert Simurgh (IOI17_simurgh) C++17
51 / 100
 88 ms 3672 KB 
#include "simurgh.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 505;
vector<pair<int,int>> adj[maxn];
int vis[maxn], cnt;

vector<int> used;

void dfs(int u) {
    vis[u] = cnt;
    for (auto [v, id]:adj[u]) if (!vis[v]) {
        used.push_back(id);
        dfs(v);
    }
}

vector<int> find_roads(int n, vector<int> U, vector<int> V) {
    for (int i=0;i<U.size();i++) {
        adj[U[i]].push_back({V[i], i}), adj[V[i]].push_back({U[i], i});
    }
    vector<int> golden;
    int ans[U.size()];
    for (int i=0;i<U.size();i++) ans[i] = -1;
    for (int i=0;i<n;i++) {
        for (int j=0;j<n;j++) vis[j] = 0;
        vis[i] = -1;
        cnt = 0;
        used.clear();
        vector<vector<int>> vec = {{}};
        bool have = false;
        for (auto [v, id]:adj[i]) {
            if (ans[id]==-1) have = true;
            if (vis[v]) vec[vis[v]].push_back(id);
            else {
                cnt++, vec.push_back({id});
                dfs(v);
            }
        }
        if (!have) continue;
        for (int j=1;j<=cnt;j++) {
            vector<int> thing = used;
            for (int k=1;k<=cnt;k++) if (j!=k) thing.push_back(vec[k][0]);
            vector<pair<int,int>> ret;
            int mx = -1;
            for (int v:vec[j]) {
                thing.push_back(v);
                if (ans[v]==-1) {
                    // cout << v << " " << ans[v] << endl;
                    // for (int X:thing) cout << X << " "; cout << endl;
                    ret.push_back({count_common_roads(thing), v});
                } else {
                    if (ans[v]==1 && mx == -1) {
                        // for (int X:thing) cout << X << " "; cout << endl;
                        mx = count_common_roads(thing);
                    }
                }
                thing.pop_back();
            }
            mx = max(mx, (*max_element(ret.begin(), ret.end())).first);
            for (auto [val, v]:ret) {
                if (val==mx) golden.push_back(v);
                ans[v] = (val==mx);
            }
        }
    }
    sort(golden.begin(), golden.end());
    golden.erase(unique(golden.begin(), golden.end()), golden.end());
    // for (int X:golden) cout << X << " "; cout << endl;
    return golden;
}

Compilation message

simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:19:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int i=0;i<U.size();i++) {
      |                  ~^~~~~~~~~
simurgh.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int i=0;i<U.size();i++) ans[i] = -1;
      |                  ~^~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB correct
2 Correct 1 ms 348 KB correct
3 Correct 0 ms 348 KB correct
4 Correct 0 ms 348 KB correct
5 Correct 0 ms 348 KB correct
6 Correct 1 ms 348 KB correct
7 Correct 0 ms 348 KB correct
8 Correct 0 ms 348 KB correct
9 Correct 0 ms 348 KB correct
10 Correct 0 ms 348 KB correct
11 Correct 1 ms 348 KB correct
12 Correct 0 ms 348 KB correct
13 Correct 0 ms 348 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB correct
2 Correct 1 ms 348 KB correct
3 Correct 0 ms 348 KB correct
4 Correct 0 ms 348 KB correct
5 Correct 0 ms 348 KB correct
6 Correct 1 ms 348 KB correct
7 Correct 0 ms 348 KB correct
8 Correct 0 ms 348 KB correct
9 Correct 0 ms 348 KB correct
10 Correct 0 ms 348 KB correct
11 Correct 1 ms 348 KB correct
12 Correct 0 ms 348 KB correct
13 Correct 0 ms 348 KB correct
14 Correct 1 ms 348 KB correct
15 Correct 1 ms 344 KB correct
16 Correct 2 ms 344 KB correct
17 Correct 1 ms 348 KB correct
18 Correct 1 ms 348 KB correct
19 Correct 2 ms 348 KB correct
20 Correct 1 ms 348 KB correct
21 Correct 2 ms 344 KB correct
22 Correct 1 ms 348 KB correct
23 Correct 2 ms 348 KB correct
24 Correct 1 ms 348 KB correct
25 Correct 0 ms 348 KB correct
26 Correct 1 ms 600 KB correct
27 Correct 1 ms 344 KB correct
28 Correct 1 ms 348 KB correct
29 Correct 0 ms 348 KB correct
30 Correct 1 ms 344 KB correct
31 Correct 1 ms 348 KB correct
32 Correct 1 ms 348 KB correct
33 Correct 1 ms 348 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB correct
2 Correct 1 ms 348 KB correct
3 Correct 0 ms 348 KB correct
4 Correct 0 ms 348 KB correct
5 Correct 0 ms 348 KB correct
6 Correct 1 ms 348 KB correct
7 Correct 0 ms 348 KB correct
8 Correct 0 ms 348 KB correct
9 Correct 0 ms 348 KB correct
10 Correct 0 ms 348 KB correct
11 Correct 1 ms 348 KB correct
12 Correct 0 ms 348 KB correct
13 Correct 0 ms 348 KB correct
14 Correct 1 ms 348 KB correct
15 Correct 1 ms 344 KB correct
16 Correct 2 ms 344 KB correct
17 Correct 1 ms 348 KB correct
18 Correct 1 ms 348 KB correct
19 Correct 2 ms 348 KB correct
20 Correct 1 ms 348 KB correct
21 Correct 2 ms 344 KB correct
22 Correct 1 ms 348 KB correct
23 Correct 2 ms 348 KB correct
24 Correct 1 ms 348 KB correct
25 Correct 0 ms 348 KB correct
26 Correct 1 ms 600 KB correct
27 Correct 1 ms 344 KB correct
28 Correct 1 ms 348 KB correct
29 Correct 0 ms 348 KB correct
30 Correct 1 ms 344 KB correct
31 Correct 1 ms 348 KB correct
32 Correct 1 ms 348 KB correct
33 Correct 1 ms 348 KB correct
34 Correct 88 ms 1372 KB correct
35 Correct 83 ms 1768 KB correct
36 Correct 59 ms 1372 KB correct
37 Correct 6 ms 344 KB correct
38 Correct 84 ms 1628 KB correct
39 Correct 77 ms 1676 KB correct
40 Correct 57 ms 1372 KB correct
41 Correct 86 ms 1624 KB correct
42 Correct 82 ms 1628 KB correct
43 Correct 48 ms 1112 KB correct
44 Correct 39 ms 860 KB correct
45 Correct 45 ms 1116 KB correct
46 Correct 34 ms 860 KB correct
47 Correct 15 ms 732 KB correct
48 Correct 2 ms 348 KB correct
49 Correct 7 ms 348 KB correct
50 Correct 18 ms 744 KB correct
51 Correct 45 ms 1140 KB correct
52 Correct 41 ms 860 KB correct
53 Correct 34 ms 860 KB correct
54 Correct 47 ms 1116 KB correct
55 Correct 43 ms 1112 KB correct
56 Correct 44 ms 1112 KB correct
57 Correct 44 ms 1116 KB correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB correct
2 Correct 0 ms 344 KB correct
3 Incorrect 72 ms 3672 KB WA in grader: NO
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB correct
2 Correct 1 ms 348 KB correct
3 Correct 0 ms 348 KB correct
4 Correct 0 ms 348 KB correct
5 Correct 0 ms 348 KB correct
6 Correct 1 ms 348 KB correct
7 Correct 0 ms 348 KB correct
8 Correct 0 ms 348 KB correct
9 Correct 0 ms 348 KB correct
10 Correct 0 ms 348 KB correct
11 Correct 1 ms 348 KB correct
12 Correct 0 ms 348 KB correct
13 Correct 0 ms 348 KB correct
14 Correct 1 ms 348 KB correct
15 Correct 1 ms 344 KB correct
16 Correct 2 ms 344 KB correct
17 Correct 1 ms 348 KB correct
18 Correct 1 ms 348 KB correct
19 Correct 2 ms 348 KB correct
20 Correct 1 ms 348 KB correct
21 Correct 2 ms 344 KB correct
22 Correct 1 ms 348 KB correct
23 Correct 2 ms 348 KB correct
24 Correct 1 ms 348 KB correct
25 Correct 0 ms 348 KB correct
26 Correct 1 ms 600 KB correct
27 Correct 1 ms 344 KB correct
28 Correct 1 ms 348 KB correct
29 Correct 0 ms 348 KB correct
30 Correct 1 ms 344 KB correct
31 Correct 1 ms 348 KB correct
32 Correct 1 ms 348 KB correct
33 Correct 1 ms 348 KB correct
34 Correct 88 ms 1372 KB correct
35 Correct 83 ms 1768 KB correct
36 Correct 59 ms 1372 KB correct
37 Correct 6 ms 344 KB correct
38 Correct 84 ms 1628 KB correct
39 Correct 77 ms 1676 KB correct
40 Correct 57 ms 1372 KB correct
41 Correct 86 ms 1624 KB correct
42 Correct 82 ms 1628 KB correct
43 Correct 48 ms 1112 KB correct
44 Correct 39 ms 860 KB correct
45 Correct 45 ms 1116 KB correct
46 Correct 34 ms 860 KB correct
47 Correct 15 ms 732 KB correct
48 Correct 2 ms 348 KB correct
49 Correct 7 ms 348 KB correct
50 Correct 18 ms 744 KB correct
51 Correct 45 ms 1140 KB correct
52 Correct 41 ms 860 KB correct
53 Correct 34 ms 860 KB correct
54 Correct 47 ms 1116 KB correct
55 Correct 43 ms 1112 KB correct
56 Correct 44 ms 1112 KB correct
57 Correct 44 ms 1116 KB correct
58 Correct 0 ms 348 KB correct
59 Correct 0 ms 344 KB correct
60 Incorrect 72 ms 3672 KB WA in grader: NO
61 Halted 0 ms 0 KB -