oj.uz

Submission #759308

# Submission time Handle Problem Language Result Execution time Memory
759308 2023-06-16T05:34:50 Z boyliguanhan Joker (BOI20_joker) C++17
39 / 100
 2000 ms 22796 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 6 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 4 ms 10452 KB Output is correct
4 Correct 4 ms 10452 KB Output is correct
5 Correct 4 ms 10452 KB Output is correct
6 Correct 4 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 7 ms 10536 KB Output is correct
9 Correct 8 ms 10432 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 9 ms 10580 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 7 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10452 KB Output is correct
17 Correct 7 ms 10468 KB Output is correct
18 Correct 7 ms 10528 KB Output is correct
19 Correct 8 ms 10452 KB Output is correct
20 Correct 7 ms 10452 KB Output is correct
21 Correct 6 ms 10452 KB Output is correct
22 Correct 7 ms 10452 KB Output is correct
23 Correct 7 ms 10532 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 6 ms 10516 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10452 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 6 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 4 ms 10452 KB Output is correct
4 Correct 4 ms 10452 KB Output is correct
5 Correct 4 ms 10452 KB Output is correct
6 Correct 4 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 7 ms 10536 KB Output is correct
9 Correct 8 ms 10432 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 9 ms 10580 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 7 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10452 KB Output is correct
17 Correct 7 ms 10468 KB Output is correct
18 Correct 7 ms 10528 KB Output is correct
19 Correct 8 ms 10452 KB Output is correct
20 Correct 7 ms 10452 KB Output is correct
21 Correct 6 ms 10452 KB Output is correct
22 Correct 7 ms 10452 KB Output is correct
23 Correct 7 ms 10532 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 6 ms 10516 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10452 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 60 ms 10588 KB Output is correct
30 Correct 54 ms 10640 KB Output is correct
31 Correct 45 ms 10548 KB Output is correct
32 Correct 34 ms 10640 KB Output is correct
33 Correct 30 ms 10580 KB Output is correct
34 Correct 46 ms 10648 KB Output is correct
35 Correct 56 ms 10624 KB Output is correct
36 Correct 41 ms 10640 KB Output is correct
37 Correct 76 ms 10580 KB Output is correct
38 Correct 74 ms 10648 KB Output is correct
39 Correct 56 ms 10628 KB Output is correct
40 Correct 40 ms 10636 KB Output is correct
41 Correct 39 ms 10632 KB Output is correct
42 Correct 40 ms 10580 KB Output is correct
43 Correct 33 ms 10632 KB Output is correct
44 Correct 34 ms 10580 KB Output is correct
45 Correct 37 ms 10580 KB Output is correct
46 Correct 42 ms 10656 KB Output is correct
47 Correct 44 ms 10632 KB Output is correct
48 Correct 42 ms 10580 KB Output is correct
49 Correct 46 ms 10580 KB Output is correct
50 Correct 52 ms 10632 KB Output is correct
51 Correct 36 ms 10580 KB Output is correct
52 Correct 38 ms 10580 KB Output is correct
53 Correct 44 ms 10640 KB Output is correct
54 Correct 55 ms 10648 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 121 ms 21304 KB Output is correct
4 Correct 282 ms 22796 KB Output is correct
5 Correct 106 ms 16432 KB Output is correct
6 Correct 136 ms 19088 KB Output is correct
7 Correct 122 ms 18368 KB Output is correct
8 Correct 120 ms 20160 KB Output is correct
9 Correct 134 ms 20624 KB Output is correct
10 Correct 172 ms 20756 KB Output is correct
11 Correct 142 ms 18256 KB Output is correct
12 Correct 180 ms 19088 KB Output is correct
13 Correct 100 ms 17600 KB Output is correct
14 Correct 135 ms 18932 KB Output is correct
15 Correct 155 ms 19196 KB Output is correct
16 Correct 187 ms 19520 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 4 ms 10452 KB Output is correct
4 Correct 4 ms 10452 KB Output is correct
5 Correct 4 ms 10452 KB Output is correct
6 Correct 4 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 7 ms 10536 KB Output is correct
9 Correct 8 ms 10432 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 9 ms 10580 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 7 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10452 KB Output is correct
17 Correct 7 ms 10468 KB Output is correct
18 Correct 7 ms 10528 KB Output is correct
19 Correct 8 ms 10452 KB Output is correct
20 Correct 7 ms 10452 KB Output is correct
21 Correct 6 ms 10452 KB Output is correct
22 Correct 7 ms 10452 KB Output is correct
23 Correct 7 ms 10532 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 6 ms 10516 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10452 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 121 ms 21304 KB Output is correct
30 Correct 282 ms 22796 KB Output is correct
31 Correct 106 ms 16432 KB Output is correct
32 Correct 136 ms 19088 KB Output is correct
33 Correct 122 ms 18368 KB Output is correct
34 Correct 120 ms 20160 KB Output is correct
35 Correct 134 ms 20624 KB Output is correct
36 Correct 172 ms 20756 KB Output is correct
37 Correct 142 ms 18256 KB Output is correct
38 Correct 180 ms 19088 KB Output is correct
39 Correct 100 ms 17600 KB Output is correct
40 Correct 135 ms 18932 KB Output is correct
41 Correct 155 ms 19196 KB Output is correct
42 Correct 187 ms 19520 KB Output is correct
43 Execution timed out 2059 ms 22476 KB Time limit exceeded
44 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 4 ms 10452 KB Output is correct
4 Correct 4 ms 10452 KB Output is correct
5 Correct 4 ms 10452 KB Output is correct
6 Correct 4 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 7 ms 10536 KB Output is correct
9 Correct 8 ms 10432 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 9 ms 10580 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 7 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10452 KB Output is correct
17 Correct 7 ms 10468 KB Output is correct
18 Correct 7 ms 10528 KB Output is correct
19 Correct 8 ms 10452 KB Output is correct
20 Correct 7 ms 10452 KB Output is correct
21 Correct 6 ms 10452 KB Output is correct
22 Correct 7 ms 10452 KB Output is correct
23 Correct 7 ms 10532 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 6 ms 10516 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10452 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 60 ms 10588 KB Output is correct
30 Correct 54 ms 10640 KB Output is correct
31 Correct 45 ms 10548 KB Output is correct
32 Correct 34 ms 10640 KB Output is correct
33 Correct 30 ms 10580 KB Output is correct
34 Correct 46 ms 10648 KB Output is correct
35 Correct 56 ms 10624 KB Output is correct
36 Correct 41 ms 10640 KB Output is correct
37 Correct 76 ms 10580 KB Output is correct
38 Correct 74 ms 10648 KB Output is correct
39 Correct 56 ms 10628 KB Output is correct
40 Correct 40 ms 10636 KB Output is correct
41 Correct 39 ms 10632 KB Output is correct
42 Correct 40 ms 10580 KB Output is correct
43 Correct 33 ms 10632 KB Output is correct
44 Correct 34 ms 10580 KB Output is correct
45 Correct 37 ms 10580 KB Output is correct
46 Correct 42 ms 10656 KB Output is correct
47 Correct 44 ms 10632 KB Output is correct
48 Correct 42 ms 10580 KB Output is correct
49 Correct 46 ms 10580 KB Output is correct
50 Correct 52 ms 10632 KB Output is correct
51 Correct 36 ms 10580 KB Output is correct
52 Correct 38 ms 10580 KB Output is correct
53 Correct 44 ms 10640 KB Output is correct
54 Correct 55 ms 10648 KB Output is correct
55 Execution timed out 2057 ms 18260 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 4 ms 10452 KB Output is correct
4 Correct 4 ms 10452 KB Output is correct
5 Correct 4 ms 10452 KB Output is correct
6 Correct 4 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 7 ms 10536 KB Output is correct
9 Correct 8 ms 10432 KB Output is correct
10 Correct 7 ms 10452 KB Output is correct
11 Correct 9 ms 10580 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 7 ms 10452 KB Output is correct
15 Correct 7 ms 10452 KB Output is correct
16 Correct 7 ms 10452 KB Output is correct
17 Correct 7 ms 10468 KB Output is correct
18 Correct 7 ms 10528 KB Output is correct
19 Correct 8 ms 10452 KB Output is correct
20 Correct 7 ms 10452 KB Output is correct
21 Correct 6 ms 10452 KB Output is correct
22 Correct 7 ms 10452 KB Output is correct
23 Correct 7 ms 10532 KB Output is correct
24 Correct 7 ms 10452 KB Output is correct
25 Correct 6 ms 10516 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10452 KB Output is correct
28 Correct 7 ms 10452 KB Output is correct
29 Correct 60 ms 10588 KB Output is correct
30 Correct 54 ms 10640 KB Output is correct
31 Correct 45 ms 10548 KB Output is correct
32 Correct 34 ms 10640 KB Output is correct
33 Correct 30 ms 10580 KB Output is correct
34 Correct 46 ms 10648 KB Output is correct
35 Correct 56 ms 10624 KB Output is correct
36 Correct 41 ms 10640 KB Output is correct
37 Correct 76 ms 10580 KB Output is correct
38 Correct 74 ms 10648 KB Output is correct
39 Correct 56 ms 10628 KB Output is correct
40 Correct 40 ms 10636 KB Output is correct
41 Correct 39 ms 10632 KB Output is correct
42 Correct 40 ms 10580 KB Output is correct
43 Correct 33 ms 10632 KB Output is correct
44 Correct 34 ms 10580 KB Output is correct
45 Correct 37 ms 10580 KB Output is correct
46 Correct 42 ms 10656 KB Output is correct
47 Correct 44 ms 10632 KB Output is correct
48 Correct 42 ms 10580 KB Output is correct
49 Correct 46 ms 10580 KB Output is correct
50 Correct 52 ms 10632 KB Output is correct
51 Correct 36 ms 10580 KB Output is correct
52 Correct 38 ms 10580 KB Output is correct
53 Correct 44 ms 10640 KB Output is correct
54 Correct 55 ms 10648 KB Output is correct
55 Correct 121 ms 21304 KB Output is correct
56 Correct 282 ms 22796 KB Output is correct
57 Correct 106 ms 16432 KB Output is correct
58 Correct 136 ms 19088 KB Output is correct
59 Correct 122 ms 18368 KB Output is correct
60 Correct 120 ms 20160 KB Output is correct
61 Correct 134 ms 20624 KB Output is correct
62 Correct 172 ms 20756 KB Output is correct
63 Correct 142 ms 18256 KB Output is correct
64 Correct 180 ms 19088 KB Output is correct
65 Correct 100 ms 17600 KB Output is correct
66 Correct 135 ms 18932 KB Output is correct
67 Correct 155 ms 19196 KB Output is correct
68 Correct 187 ms 19520 KB Output is correct
69 Execution timed out 2059 ms 22476 KB Time limit exceeded
70 Halted 0 ms 0 KB -