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Submission #914213

# Submission time Handle Problem Language Result Execution time Memory
914213 2024-01-21T11:15:10 Z Abito Joker (BOI20_joker) C++14
14 / 100
 2000 ms 19156 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
//#define int long long
#define ll long long
#define y1 YONE
#define free freeee
#define lcm llcm
/*
⠄⠄⠄⠄⢠⣿⣿⣿⣿⣿⢻⣿⣿⣿⣿⣿⣿⣿⣿⣯⢻⣿⣿⣿⣿⣆⠄⠄⠄
⠄⠄⣼⢀⣿⣿⣿⣿⣏⡏⠄⠹⣿⣿⣿⣿⣿⣿⣿⣿⣧⢻⣿⣿⣿⣿⡆⠄⠄
⠄⠄⡟⣼⣿⣿⣿⣿⣿⠄⠄⠄⠈⠻⣿⣿⣿⣿⣿⣿⣿⣇⢻⣿⣿⣿⣿⠄⠄
⠄⢰⠃⣿⣿⠿⣿⣿⣿⠄⠄⠄⠄⠄⠄⠙⠿⣿⣿⣿⣿⣿⠄⢿⣿⣿⣿⡄⠄
⠄⢸⢠⣿⣿⣧⡙⣿⣿⡆⠄⠄⠄⠄⠄⠄⠄⠈⠛⢿⣿⣿⡇⠸⣿⡿⣸⡇⠄
⠄⠈⡆⣿⣿⣿⣿⣦⡙⠳⠄⠄⠄⠄⠄⠄⢀⣠⣤⣀⣈⠙⠃⠄⠿⢇⣿⡇⠄
⠄⠄⡇⢿⣿⣿⣿⣿⡇⠄⠄⠄⠄⠄⣠⣶⣿⣿⣿⣿⣿⣿⣷⣆⡀⣼⣿⡇⠄
⠄⠄⢹⡘⣿⣿⣿⢿⣷⡀⠄⢀⣴⣾⣟⠉⠉⠉⠉⣽⣿⣿⣿⣿⠇⢹⣿⠃⠄
⠄⠄⠄⢷⡘⢿⣿⣎⢻⣷⠰⣿⣿⣿⣿⣦⣀⣀⣴⣿⣿⣿⠟⢫⡾⢸⡟⠄.
⠄⠄⠄⠄⠻⣦⡙⠿⣧⠙⢷⠙⠻⠿⢿⡿⠿⠿⠛⠋⠉⠄⠂⠘⠁⠞⠄⠄⠄
⠄⠄⠄⠄⠄⠈⠙⠑⣠⣤⣴⡖⠄⠿⣋⣉⣉⡁⠄⢾⣦⠄⠄⠄⠄⠄⠄⠄⠄
*/
typedef unsigned long long ull;
using namespace std;
const int N=2e5+5;
int n,m,q,vis[N],tin[N],t,l,r;
vector<pair<int,int>> adj[N];
bool cyc;
void dfs(int x,int p){
    //cout<<x<<' '<<p<<endl;
    vis[x]=1;
    tin[x]=++t;
    for (auto u:adj[x]){
        if (vis[u.F]==2 || u.F==p || (u.S>=l && u.S<=r)) continue;
        if (vis[u.F]) cyc|=((tin[x]-tin[u.F]+1)&1);
        else dfs(u.F,x);
    }t--;
    vis[x]++;
    return;
}
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n>>m>>q;
    for (int i=1;i<=m;i++){
        int x,y;
        cin>>x>>y;
        adj[x].pb({y,i});
        adj[y].pb({x,i});
    }
    while (q--){
        cin>>l>>r;
        memset(vis,0,sizeof(vis));cyc=0;
        for (int i=1;i<=n;i++) if (!vis[i]) dfs(i,0);
        if (cyc) cout<<"YES"<<endl;
        else cout<<"NO"<<endl;
    }
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5720 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 3 ms 5932 KB Output is correct
5 Correct 2 ms 5808 KB Output is correct
6 Correct 3 ms 5724 KB Output is correct
7 Correct 5 ms 5936 KB Output is correct
8 Correct 6 ms 5720 KB Output is correct
9 Correct 5 ms 5720 KB Output is correct
10 Correct 6 ms 5724 KB Output is correct
11 Correct 5 ms 5724 KB Output is correct
12 Correct 5 ms 5724 KB Output is correct
13 Correct 6 ms 5720 KB Output is correct
14 Correct 5 ms 5724 KB Output is correct
15 Correct 6 ms 5720 KB Output is correct
16 Correct 8 ms 5724 KB Output is correct
17 Correct 5 ms 5724 KB Output is correct
18 Correct 5 ms 5976 KB Output is correct
19 Correct 5 ms 5724 KB Output is correct
20 Correct 6 ms 5720 KB Output is correct
21 Correct 5 ms 5724 KB Output is correct
22 Correct 5 ms 5720 KB Output is correct
23 Correct 5 ms 5928 KB Output is correct
24 Correct 6 ms 5724 KB Output is correct
25 Correct 5 ms 5724 KB Output is correct
26 Correct 5 ms 5724 KB Output is correct
27 Correct 5 ms 5724 KB Output is correct
28 Correct 6 ms 5724 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5720 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 3 ms 5932 KB Output is correct
5 Correct 2 ms 5808 KB Output is correct
6 Correct 3 ms 5724 KB Output is correct
7 Correct 5 ms 5936 KB Output is correct
8 Correct 6 ms 5720 KB Output is correct
9 Correct 5 ms 5720 KB Output is correct
10 Correct 6 ms 5724 KB Output is correct
11 Correct 5 ms 5724 KB Output is correct
12 Correct 5 ms 5724 KB Output is correct
13 Correct 6 ms 5720 KB Output is correct
14 Correct 5 ms 5724 KB Output is correct
15 Correct 6 ms 5720 KB Output is correct
16 Correct 8 ms 5724 KB Output is correct
17 Correct 5 ms 5724 KB Output is correct
18 Correct 5 ms 5976 KB Output is correct
19 Correct 5 ms 5724 KB Output is correct
20 Correct 6 ms 5720 KB Output is correct
21 Correct 5 ms 5724 KB Output is correct
22 Correct 5 ms 5720 KB Output is correct
23 Correct 5 ms 5928 KB Output is correct
24 Correct 6 ms 5724 KB Output is correct
25 Correct 5 ms 5724 KB Output is correct
26 Correct 5 ms 5724 KB Output is correct
27 Correct 5 ms 5724 KB Output is correct
28 Correct 6 ms 5724 KB Output is correct
29 Correct 87 ms 6004 KB Output is correct
30 Correct 142 ms 6176 KB Output is correct
31 Correct 140 ms 6068 KB Output is correct
32 Correct 124 ms 6064 KB Output is correct
33 Correct 104 ms 5980 KB Output is correct
34 Correct 154 ms 6060 KB Output is correct
35 Correct 154 ms 6064 KB Output is correct
36 Correct 64 ms 6224 KB Output is correct
37 Correct 99 ms 5980 KB Output is correct
38 Correct 86 ms 5980 KB Output is correct
39 Correct 114 ms 6060 KB Output is correct
40 Correct 114 ms 6332 KB Output is correct
41 Correct 119 ms 5980 KB Output is correct
42 Correct 118 ms 6080 KB Output is correct
43 Correct 96 ms 5976 KB Output is correct
44 Correct 120 ms 6092 KB Output is correct
45 Correct 136 ms 6232 KB Output is correct
46 Correct 148 ms 6068 KB Output is correct
47 Correct 112 ms 6052 KB Output is correct
48 Correct 117 ms 6228 KB Output is correct
49 Correct 131 ms 5980 KB Output is correct
50 Correct 142 ms 5980 KB Output is correct
51 Correct 111 ms 5980 KB Output is correct
52 Correct 125 ms 6320 KB Output is correct
53 Correct 135 ms 5980 KB Output is correct
54 Correct 152 ms 6068 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5720 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Execution timed out 2067 ms 17744 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5720 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 3 ms 5932 KB Output is correct
5 Correct 2 ms 5808 KB Output is correct
6 Correct 3 ms 5724 KB Output is correct
7 Correct 5 ms 5936 KB Output is correct
8 Correct 6 ms 5720 KB Output is correct
9 Correct 5 ms 5720 KB Output is correct
10 Correct 6 ms 5724 KB Output is correct
11 Correct 5 ms 5724 KB Output is correct
12 Correct 5 ms 5724 KB Output is correct
13 Correct 6 ms 5720 KB Output is correct
14 Correct 5 ms 5724 KB Output is correct
15 Correct 6 ms 5720 KB Output is correct
16 Correct 8 ms 5724 KB Output is correct
17 Correct 5 ms 5724 KB Output is correct
18 Correct 5 ms 5976 KB Output is correct
19 Correct 5 ms 5724 KB Output is correct
20 Correct 6 ms 5720 KB Output is correct
21 Correct 5 ms 5724 KB Output is correct
22 Correct 5 ms 5720 KB Output is correct
23 Correct 5 ms 5928 KB Output is correct
24 Correct 6 ms 5724 KB Output is correct
25 Correct 5 ms 5724 KB Output is correct
26 Correct 5 ms 5724 KB Output is correct
27 Correct 5 ms 5724 KB Output is correct
28 Correct 6 ms 5724 KB Output is correct
29 Execution timed out 2067 ms 17744 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5720 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 3 ms 5932 KB Output is correct
5 Correct 2 ms 5808 KB Output is correct
6 Correct 3 ms 5724 KB Output is correct
7 Correct 5 ms 5936 KB Output is correct
8 Correct 6 ms 5720 KB Output is correct
9 Correct 5 ms 5720 KB Output is correct
10 Correct 6 ms 5724 KB Output is correct
11 Correct 5 ms 5724 KB Output is correct
12 Correct 5 ms 5724 KB Output is correct
13 Correct 6 ms 5720 KB Output is correct
14 Correct 5 ms 5724 KB Output is correct
15 Correct 6 ms 5720 KB Output is correct
16 Correct 8 ms 5724 KB Output is correct
17 Correct 5 ms 5724 KB Output is correct
18 Correct 5 ms 5976 KB Output is correct
19 Correct 5 ms 5724 KB Output is correct
20 Correct 6 ms 5720 KB Output is correct
21 Correct 5 ms 5724 KB Output is correct
22 Correct 5 ms 5720 KB Output is correct
23 Correct 5 ms 5928 KB Output is correct
24 Correct 6 ms 5724 KB Output is correct
25 Correct 5 ms 5724 KB Output is correct
26 Correct 5 ms 5724 KB Output is correct
27 Correct 5 ms 5724 KB Output is correct
28 Correct 6 ms 5724 KB Output is correct
29 Correct 87 ms 6004 KB Output is correct
30 Correct 142 ms 6176 KB Output is correct
31 Correct 140 ms 6068 KB Output is correct
32 Correct 124 ms 6064 KB Output is correct
33 Correct 104 ms 5980 KB Output is correct
34 Correct 154 ms 6060 KB Output is correct
35 Correct 154 ms 6064 KB Output is correct
36 Correct 64 ms 6224 KB Output is correct
37 Correct 99 ms 5980 KB Output is correct
38 Correct 86 ms 5980 KB Output is correct
39 Correct 114 ms 6060 KB Output is correct
40 Correct 114 ms 6332 KB Output is correct
41 Correct 119 ms 5980 KB Output is correct
42 Correct 118 ms 6080 KB Output is correct
43 Correct 96 ms 5976 KB Output is correct
44 Correct 120 ms 6092 KB Output is correct
45 Correct 136 ms 6232 KB Output is correct
46 Correct 148 ms 6068 KB Output is correct
47 Correct 112 ms 6052 KB Output is correct
48 Correct 117 ms 6228 KB Output is correct
49 Correct 131 ms 5980 KB Output is correct
50 Correct 142 ms 5980 KB Output is correct
51 Correct 111 ms 5980 KB Output is correct
52 Correct 125 ms 6320 KB Output is correct
53 Correct 135 ms 5980 KB Output is correct
54 Correct 152 ms 6068 KB Output is correct
55 Execution timed out 2027 ms 19156 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5720 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 3 ms 5932 KB Output is correct
5 Correct 2 ms 5808 KB Output is correct
6 Correct 3 ms 5724 KB Output is correct
7 Correct 5 ms 5936 KB Output is correct
8 Correct 6 ms 5720 KB Output is correct
9 Correct 5 ms 5720 KB Output is correct
10 Correct 6 ms 5724 KB Output is correct
11 Correct 5 ms 5724 KB Output is correct
12 Correct 5 ms 5724 KB Output is correct
13 Correct 6 ms 5720 KB Output is correct
14 Correct 5 ms 5724 KB Output is correct
15 Correct 6 ms 5720 KB Output is correct
16 Correct 8 ms 5724 KB Output is correct
17 Correct 5 ms 5724 KB Output is correct
18 Correct 5 ms 5976 KB Output is correct
19 Correct 5 ms 5724 KB Output is correct
20 Correct 6 ms 5720 KB Output is correct
21 Correct 5 ms 5724 KB Output is correct
22 Correct 5 ms 5720 KB Output is correct
23 Correct 5 ms 5928 KB Output is correct
24 Correct 6 ms 5724 KB Output is correct
25 Correct 5 ms 5724 KB Output is correct
26 Correct 5 ms 5724 KB Output is correct
27 Correct 5 ms 5724 KB Output is correct
28 Correct 6 ms 5724 KB Output is correct
29 Correct 87 ms 6004 KB Output is correct
30 Correct 142 ms 6176 KB Output is correct
31 Correct 140 ms 6068 KB Output is correct
32 Correct 124 ms 6064 KB Output is correct
33 Correct 104 ms 5980 KB Output is correct
34 Correct 154 ms 6060 KB Output is correct
35 Correct 154 ms 6064 KB Output is correct
36 Correct 64 ms 6224 KB Output is correct
37 Correct 99 ms 5980 KB Output is correct
38 Correct 86 ms 5980 KB Output is correct
39 Correct 114 ms 6060 KB Output is correct
40 Correct 114 ms 6332 KB Output is correct
41 Correct 119 ms 5980 KB Output is correct
42 Correct 118 ms 6080 KB Output is correct
43 Correct 96 ms 5976 KB Output is correct
44 Correct 120 ms 6092 KB Output is correct
45 Correct 136 ms 6232 KB Output is correct
46 Correct 148 ms 6068 KB Output is correct
47 Correct 112 ms 6052 KB Output is correct
48 Correct 117 ms 6228 KB Output is correct
49 Correct 131 ms 5980 KB Output is correct
50 Correct 142 ms 5980 KB Output is correct
51 Correct 111 ms 5980 KB Output is correct
52 Correct 125 ms 6320 KB Output is correct
53 Correct 135 ms 5980 KB Output is correct
54 Correct 152 ms 6068 KB Output is correct
55 Execution timed out 2067 ms 17744 KB Time limit exceeded
56 Halted 0 ms 0 KB -