oj.uz

Submission #759313

# Submission time Handle Problem Language Result Execution time Memory
759313 2023-06-16T05:57:35 Z vjudge1 Joker (BOI20_joker) C++17
39 / 100
 2000 ms 22792 KB 
#include<bits/stdc++.h>
#pragma GCC optimize(2)
using namespace std;
#define N 200100
vector<int> adj[N];
vector<pair<int, int>> arr[N];
int color[N], ans[N], a[N], b[N], n, m, q;
int dfs(int x, int col) {
    if(color[x]) {
        if(col==color[x]) return 0;
        else return 1;
    }
    color[x] = col;
    for(auto i: adj[x]) 
        if(dfs(i, 3-col))
            return 1;
    return 0;
}
bool check(int l, int r) {
    memset(color, 0, sizeof color);
    for(int i = 1; i <= n; i++)
        adj[i].clear();
    for(int i = 0; i < l; i++)
        adj[a[i]].push_back(b[i]), adj[b[i]].push_back(a[i]);
    for(int i = r+1; i < m; i++)
        adj[a[i]].push_back(b[i]), adj[b[i]].push_back(a[i]);
    for(int i = 0; i < n; i++)
        if(!color[i])
            if(dfs(i, 1))
                return 1;
    return 0;
}
int main() {
    cin.sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n >> m >> q;
    for(int i = 0; i < m; i++)
        cin >> a[i] >> b[i];
    for(int i = 0; i < q; ++i) {
        int l, r;
        cin >> l >> r;
        arr[l-1].push_back({r-1,i});
    }
    for(int i = 0; i < m; i++) {
        sort(arr[i].begin(), arr[i].end());
        int l = 0, r = arr[i].size();
        while(l<r) {
            int mid = l+r>>1;
            if(check(i, arr[i][mid].first)) {
                l = mid+1;
            } else {
                r = mid;
            }
        }
        for(int j = 0; j < l; j++)
            ans[arr[i][j].second] = 1;
        for(int j = l; j < arr[i].size(); ++j)
            ans[arr[i][j].second] = 0;
    }
    for(int i = 0; i < q; i++)
        cout << (ans[i]?"YES\n":"NO\n");
}

Compilation message

Joker.cpp: In function 'int main()':
Joker.cpp:48:24: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   48 |             int mid = l+r>>1;
      |                       ~^~
Joker.cpp:57:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         for(int j = l; j < arr[i].size(); ++j)
      |                        ~~^~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10452 KB Output is correct
4 Correct 5 ms 10424 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 7 ms 10452 KB Output is correct
8 Correct 7 ms 10532 KB Output is correct
9 Correct 7 ms 10452 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 7 ms 10452 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 7 ms 10532 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10536 KB Output is correct
17 Correct 8 ms 10452 KB Output is correct
18 Correct 8 ms 10452 KB Output is correct
19 Correct 8 ms 10456 KB Output is correct
20 Correct 9 ms 10452 KB Output is correct
21 Correct 7 ms 10452 KB Output is correct
22 Correct 7 ms 10532 KB Output is correct
23 Correct 7 ms 10452 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 7 ms 10528 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10428 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10452 KB Output is correct
4 Correct 5 ms 10424 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 7 ms 10452 KB Output is correct
8 Correct 7 ms 10532 KB Output is correct
9 Correct 7 ms 10452 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 7 ms 10452 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 7 ms 10532 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10536 KB Output is correct
17 Correct 8 ms 10452 KB Output is correct
18 Correct 8 ms 10452 KB Output is correct
19 Correct 8 ms 10456 KB Output is correct
20 Correct 9 ms 10452 KB Output is correct
21 Correct 7 ms 10452 KB Output is correct
22 Correct 7 ms 10532 KB Output is correct
23 Correct 7 ms 10452 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 7 ms 10528 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10428 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 64 ms 10596 KB Output is correct
30 Correct 52 ms 10632 KB Output is correct
31 Correct 45 ms 10628 KB Output is correct
32 Correct 35 ms 10616 KB Output is correct
33 Correct 30 ms 10580 KB Output is correct
34 Correct 48 ms 10640 KB Output is correct
35 Correct 57 ms 10580 KB Output is correct
36 Correct 41 ms 10616 KB Output is correct
37 Correct 73 ms 10652 KB Output is correct
38 Correct 78 ms 10644 KB Output is correct
39 Correct 57 ms 10652 KB Output is correct
40 Correct 41 ms 10580 KB Output is correct
41 Correct 44 ms 10748 KB Output is correct
42 Correct 40 ms 10636 KB Output is correct
43 Correct 33 ms 10632 KB Output is correct
44 Correct 33 ms 10580 KB Output is correct
45 Correct 36 ms 10640 KB Output is correct
46 Correct 41 ms 10656 KB Output is correct
47 Correct 43 ms 10636 KB Output is correct
48 Correct 47 ms 10628 KB Output is correct
49 Correct 51 ms 10636 KB Output is correct
50 Correct 54 ms 10628 KB Output is correct
51 Correct 37 ms 10580 KB Output is correct
52 Correct 39 ms 10580 KB Output is correct
53 Correct 44 ms 10628 KB Output is correct
54 Correct 53 ms 10632 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 120 ms 21284 KB Output is correct
4 Correct 262 ms 22792 KB Output is correct
5 Correct 101 ms 16484 KB Output is correct
6 Correct 127 ms 19104 KB Output is correct
7 Correct 122 ms 18296 KB Output is correct
8 Correct 123 ms 20152 KB Output is correct
9 Correct 202 ms 20544 KB Output is correct
10 Correct 167 ms 20800 KB Output is correct
11 Correct 142 ms 18228 KB Output is correct
12 Correct 164 ms 19080 KB Output is correct
13 Correct 117 ms 17592 KB Output is correct
14 Correct 133 ms 19032 KB Output is correct
15 Correct 155 ms 19304 KB Output is correct
16 Correct 217 ms 19308 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10452 KB Output is correct
4 Correct 5 ms 10424 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 7 ms 10452 KB Output is correct
8 Correct 7 ms 10532 KB Output is correct
9 Correct 7 ms 10452 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 7 ms 10452 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 7 ms 10532 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10536 KB Output is correct
17 Correct 8 ms 10452 KB Output is correct
18 Correct 8 ms 10452 KB Output is correct
19 Correct 8 ms 10456 KB Output is correct
20 Correct 9 ms 10452 KB Output is correct
21 Correct 7 ms 10452 KB Output is correct
22 Correct 7 ms 10532 KB Output is correct
23 Correct 7 ms 10452 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 7 ms 10528 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10428 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 120 ms 21284 KB Output is correct
30 Correct 262 ms 22792 KB Output is correct
31 Correct 101 ms 16484 KB Output is correct
32 Correct 127 ms 19104 KB Output is correct
33 Correct 122 ms 18296 KB Output is correct
34 Correct 123 ms 20152 KB Output is correct
35 Correct 202 ms 20544 KB Output is correct
36 Correct 167 ms 20800 KB Output is correct
37 Correct 142 ms 18228 KB Output is correct
38 Correct 164 ms 19080 KB Output is correct
39 Correct 117 ms 17592 KB Output is correct
40 Correct 133 ms 19032 KB Output is correct
41 Correct 155 ms 19304 KB Output is correct
42 Correct 217 ms 19308 KB Output is correct
43 Execution timed out 2072 ms 22480 KB Time limit exceeded
44 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10452 KB Output is correct
4 Correct 5 ms 10424 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 7 ms 10452 KB Output is correct
8 Correct 7 ms 10532 KB Output is correct
9 Correct 7 ms 10452 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 7 ms 10452 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 7 ms 10532 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10536 KB Output is correct
17 Correct 8 ms 10452 KB Output is correct
18 Correct 8 ms 10452 KB Output is correct
19 Correct 8 ms 10456 KB Output is correct
20 Correct 9 ms 10452 KB Output is correct
21 Correct 7 ms 10452 KB Output is correct
22 Correct 7 ms 10532 KB Output is correct
23 Correct 7 ms 10452 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 7 ms 10528 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10428 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 64 ms 10596 KB Output is correct
30 Correct 52 ms 10632 KB Output is correct
31 Correct 45 ms 10628 KB Output is correct
32 Correct 35 ms 10616 KB Output is correct
33 Correct 30 ms 10580 KB Output is correct
34 Correct 48 ms 10640 KB Output is correct
35 Correct 57 ms 10580 KB Output is correct
36 Correct 41 ms 10616 KB Output is correct
37 Correct 73 ms 10652 KB Output is correct
38 Correct 78 ms 10644 KB Output is correct
39 Correct 57 ms 10652 KB Output is correct
40 Correct 41 ms 10580 KB Output is correct
41 Correct 44 ms 10748 KB Output is correct
42 Correct 40 ms 10636 KB Output is correct
43 Correct 33 ms 10632 KB Output is correct
44 Correct 33 ms 10580 KB Output is correct
45 Correct 36 ms 10640 KB Output is correct
46 Correct 41 ms 10656 KB Output is correct
47 Correct 43 ms 10636 KB Output is correct
48 Correct 47 ms 10628 KB Output is correct
49 Correct 51 ms 10636 KB Output is correct
50 Correct 54 ms 10628 KB Output is correct
51 Correct 37 ms 10580 KB Output is correct
52 Correct 39 ms 10580 KB Output is correct
53 Correct 44 ms 10628 KB Output is correct
54 Correct 53 ms 10632 KB Output is correct
55 Execution timed out 2079 ms 18448 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10452 KB Output is correct
4 Correct 5 ms 10424 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 7 ms 10452 KB Output is correct
8 Correct 7 ms 10532 KB Output is correct
9 Correct 7 ms 10452 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 7 ms 10452 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 7 ms 10532 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10536 KB Output is correct
17 Correct 8 ms 10452 KB Output is correct
18 Correct 8 ms 10452 KB Output is correct
19 Correct 8 ms 10456 KB Output is correct
20 Correct 9 ms 10452 KB Output is correct
21 Correct 7 ms 10452 KB Output is correct
22 Correct 7 ms 10532 KB Output is correct
23 Correct 7 ms 10452 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 7 ms 10528 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10428 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 64 ms 10596 KB Output is correct
30 Correct 52 ms 10632 KB Output is correct
31 Correct 45 ms 10628 KB Output is correct
32 Correct 35 ms 10616 KB Output is correct
33 Correct 30 ms 10580 KB Output is correct
34 Correct 48 ms 10640 KB Output is correct
35 Correct 57 ms 10580 KB Output is correct
36 Correct 41 ms 10616 KB Output is correct
37 Correct 73 ms 10652 KB Output is correct
38 Correct 78 ms 10644 KB Output is correct
39 Correct 57 ms 10652 KB Output is correct
40 Correct 41 ms 10580 KB Output is correct
41 Correct 44 ms 10748 KB Output is correct
42 Correct 40 ms 10636 KB Output is correct
43 Correct 33 ms 10632 KB Output is correct
44 Correct 33 ms 10580 KB Output is correct
45 Correct 36 ms 10640 KB Output is correct
46 Correct 41 ms 10656 KB Output is correct
47 Correct 43 ms 10636 KB Output is correct
48 Correct 47 ms 10628 KB Output is correct
49 Correct 51 ms 10636 KB Output is correct
50 Correct 54 ms 10628 KB Output is correct
51 Correct 37 ms 10580 KB Output is correct
52 Correct 39 ms 10580 KB Output is correct
53 Correct 44 ms 10628 KB Output is correct
54 Correct 53 ms 10632 KB Output is correct
55 Correct 120 ms 21284 KB Output is correct
56 Correct 262 ms 22792 KB Output is correct
57 Correct 101 ms 16484 KB Output is correct
58 Correct 127 ms 19104 KB Output is correct
59 Correct 122 ms 18296 KB Output is correct
60 Correct 123 ms 20152 KB Output is correct
61 Correct 202 ms 20544 KB Output is correct
62 Correct 167 ms 20800 KB Output is correct
63 Correct 142 ms 18228 KB Output is correct
64 Correct 164 ms 19080 KB Output is correct
65 Correct 117 ms 17592 KB Output is correct
66 Correct 133 ms 19032 KB Output is correct
67 Correct 155 ms 19304 KB Output is correct
68 Correct 217 ms 19308 KB Output is correct
69 Execution timed out 2072 ms 22480 KB Time limit exceeded
70 Halted 0 ms 0 KB -