oj.uz

Submission #648583

# Submission time Handle Problem Language Result Execution time Memory
648583 2022-10-07T06:07:06 Z mychecksedad Joker (BOI20_joker) C++17
14 / 100
 175 ms 28520 KB 
/* Author : Mychecksdead */
#include<bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef long double ld;
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define PI 3.1415926535
#define pb push_back
#define setp() cout << setprecision(15)
#define all(x) x.begin(), x.end()
#define oset tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
#define debug(x) cerr << #x << " is " << x << '\n';
const int N = 1e6+100, M = 1e5+10, F = 2147483646, K = 20;


int n, m, q, pos[N], l, r;
bool ok;
vector<int> path;
vector<pair<int, int>> g[N];
vector<bool> vis;
void dfs(int v, int p){
    vis[v] = 1;
    path.pb(v);
    pos[v] = path.size();
    for(auto k: g[v]){
        int u = k.first;
        if(l <= k.second && k.second <= r) continue;
        if(u != p){
            if(vis[u]){
                if(pos[v] % 2 == pos[u] % 2){
                    ok = 1;
                }
            }
            else
                dfs(u, v);
        }
    }
    path.pop_back();
}
void solve(){
    cin >> n >> m >> q;
    for(int i = 0; i < m; ++i){
        int u, v; cin >> u >> v;
        g[u].pb({v, i + 1});
        g[v].pb({u, i + 1});
    }
    if(n <= 2000){
        for(int i = 0; i < q; ++i){
            cin >> l >> r;
            vis.clear();
            vis.resize(n+1);
            ok = 0;
            for(int v = 1; v <= n; ++v) if(!vis[v]) dfs(v, v);
            if(ok) cout << "YES\n";
            else cout << "NO\n";
        }
    }
    else{

    }
}





int main(){
    cin.tie(0); ios::sync_with_stdio(0);
    int T = 1, aa;
    // cin >> T;aa=T;
    while(T--){
        // cout << "Case #" << aa-T << ": ";
        solve();
        cout << '\n';
    }
    return 0;
 
}

Compilation message

Joker.cpp: In function 'int main()':
Joker.cpp:72:16: warning: unused variable 'aa' [-Wunused-variable]
   72 |     int T = 1, aa;
      |                ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 15 ms 23728 KB Output is correct
3 Correct 14 ms 23712 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 13 ms 23772 KB Output is correct
9 Correct 13 ms 23824 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 13 ms 23820 KB Output is correct
12 Correct 15 ms 23764 KB Output is correct
13 Correct 13 ms 23780 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23780 KB Output is correct
16 Correct 14 ms 23740 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 14 ms 23764 KB Output is correct
19 Correct 14 ms 23696 KB Output is correct
20 Correct 13 ms 23800 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 14 ms 23824 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23724 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23764 KB Output is correct
27 Correct 16 ms 23760 KB Output is correct
28 Correct 15 ms 23816 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 15 ms 23728 KB Output is correct
3 Correct 14 ms 23712 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 13 ms 23772 KB Output is correct
9 Correct 13 ms 23824 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 13 ms 23820 KB Output is correct
12 Correct 15 ms 23764 KB Output is correct
13 Correct 13 ms 23780 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23780 KB Output is correct
16 Correct 14 ms 23740 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 14 ms 23764 KB Output is correct
19 Correct 14 ms 23696 KB Output is correct
20 Correct 13 ms 23800 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 14 ms 23824 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23724 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23764 KB Output is correct
27 Correct 16 ms 23760 KB Output is correct
28 Correct 15 ms 23816 KB Output is correct
29 Correct 108 ms 23848 KB Output is correct
30 Correct 156 ms 23912 KB Output is correct
31 Correct 150 ms 23908 KB Output is correct
32 Correct 130 ms 23920 KB Output is correct
33 Correct 104 ms 23900 KB Output is correct
34 Correct 157 ms 23920 KB Output is correct
35 Correct 162 ms 23892 KB Output is correct
36 Correct 55 ms 23892 KB Output is correct
37 Correct 117 ms 23920 KB Output is correct
38 Correct 117 ms 23872 KB Output is correct
39 Correct 115 ms 23912 KB Output is correct
40 Correct 106 ms 23920 KB Output is correct
41 Correct 112 ms 23928 KB Output is correct
42 Correct 119 ms 23940 KB Output is correct
43 Correct 116 ms 23896 KB Output is correct
44 Correct 138 ms 23892 KB Output is correct
45 Correct 175 ms 23936 KB Output is correct
46 Correct 173 ms 23912 KB Output is correct
47 Correct 105 ms 23904 KB Output is correct
48 Correct 113 ms 23904 KB Output is correct
49 Correct 143 ms 23908 KB Output is correct
50 Correct 152 ms 23888 KB Output is correct
51 Correct 105 ms 23892 KB Output is correct
52 Correct 130 ms 23892 KB Output is correct
53 Correct 143 ms 23892 KB Output is correct
54 Correct 162 ms 23920 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 15 ms 23728 KB Output is correct
3 Incorrect 70 ms 28492 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 15 ms 23728 KB Output is correct
3 Correct 14 ms 23712 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 13 ms 23772 KB Output is correct
9 Correct 13 ms 23824 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 13 ms 23820 KB Output is correct
12 Correct 15 ms 23764 KB Output is correct
13 Correct 13 ms 23780 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23780 KB Output is correct
16 Correct 14 ms 23740 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 14 ms 23764 KB Output is correct
19 Correct 14 ms 23696 KB Output is correct
20 Correct 13 ms 23800 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 14 ms 23824 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23724 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23764 KB Output is correct
27 Correct 16 ms 23760 KB Output is correct
28 Correct 15 ms 23816 KB Output is correct
29 Incorrect 70 ms 28492 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 15 ms 23728 KB Output is correct
3 Correct 14 ms 23712 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 13 ms 23772 KB Output is correct
9 Correct 13 ms 23824 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 13 ms 23820 KB Output is correct
12 Correct 15 ms 23764 KB Output is correct
13 Correct 13 ms 23780 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23780 KB Output is correct
16 Correct 14 ms 23740 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 14 ms 23764 KB Output is correct
19 Correct 14 ms 23696 KB Output is correct
20 Correct 13 ms 23800 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 14 ms 23824 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23724 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23764 KB Output is correct
27 Correct 16 ms 23760 KB Output is correct
28 Correct 15 ms 23816 KB Output is correct
29 Correct 108 ms 23848 KB Output is correct
30 Correct 156 ms 23912 KB Output is correct
31 Correct 150 ms 23908 KB Output is correct
32 Correct 130 ms 23920 KB Output is correct
33 Correct 104 ms 23900 KB Output is correct
34 Correct 157 ms 23920 KB Output is correct
35 Correct 162 ms 23892 KB Output is correct
36 Correct 55 ms 23892 KB Output is correct
37 Correct 117 ms 23920 KB Output is correct
38 Correct 117 ms 23872 KB Output is correct
39 Correct 115 ms 23912 KB Output is correct
40 Correct 106 ms 23920 KB Output is correct
41 Correct 112 ms 23928 KB Output is correct
42 Correct 119 ms 23940 KB Output is correct
43 Correct 116 ms 23896 KB Output is correct
44 Correct 138 ms 23892 KB Output is correct
45 Correct 175 ms 23936 KB Output is correct
46 Correct 173 ms 23912 KB Output is correct
47 Correct 105 ms 23904 KB Output is correct
48 Correct 113 ms 23904 KB Output is correct
49 Correct 143 ms 23908 KB Output is correct
50 Correct 152 ms 23888 KB Output is correct
51 Correct 105 ms 23892 KB Output is correct
52 Correct 130 ms 23892 KB Output is correct
53 Correct 143 ms 23892 KB Output is correct
54 Correct 162 ms 23920 KB Output is correct
55 Incorrect 73 ms 28520 KB Output isn't correct
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 15 ms 23728 KB Output is correct
3 Correct 14 ms 23712 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 13 ms 23772 KB Output is correct
9 Correct 13 ms 23824 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 13 ms 23820 KB Output is correct
12 Correct 15 ms 23764 KB Output is correct
13 Correct 13 ms 23780 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23780 KB Output is correct
16 Correct 14 ms 23740 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 14 ms 23764 KB Output is correct
19 Correct 14 ms 23696 KB Output is correct
20 Correct 13 ms 23800 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 14 ms 23824 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23724 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23764 KB Output is correct
27 Correct 16 ms 23760 KB Output is correct
28 Correct 15 ms 23816 KB Output is correct
29 Correct 108 ms 23848 KB Output is correct
30 Correct 156 ms 23912 KB Output is correct
31 Correct 150 ms 23908 KB Output is correct
32 Correct 130 ms 23920 KB Output is correct
33 Correct 104 ms 23900 KB Output is correct
34 Correct 157 ms 23920 KB Output is correct
35 Correct 162 ms 23892 KB Output is correct
36 Correct 55 ms 23892 KB Output is correct
37 Correct 117 ms 23920 KB Output is correct
38 Correct 117 ms 23872 KB Output is correct
39 Correct 115 ms 23912 KB Output is correct
40 Correct 106 ms 23920 KB Output is correct
41 Correct 112 ms 23928 KB Output is correct
42 Correct 119 ms 23940 KB Output is correct
43 Correct 116 ms 23896 KB Output is correct
44 Correct 138 ms 23892 KB Output is correct
45 Correct 175 ms 23936 KB Output is correct
46 Correct 173 ms 23912 KB Output is correct
47 Correct 105 ms 23904 KB Output is correct
48 Correct 113 ms 23904 KB Output is correct
49 Correct 143 ms 23908 KB Output is correct
50 Correct 152 ms 23888 KB Output is correct
51 Correct 105 ms 23892 KB Output is correct
52 Correct 130 ms 23892 KB Output is correct
53 Correct 143 ms 23892 KB Output is correct
54 Correct 162 ms 23920 KB Output is correct
55 Incorrect 70 ms 28492 KB Output isn't correct
56 Halted 0 ms 0 KB -