oj.uz

Submission #925622

# Submission time Handle Problem Language Result Execution time Memory
925622 2024-02-12T06:26:43 Z vjudge1 Joker (BOI20_joker) C++17
39 / 100
 2000 ms 18976 KB 
/*
no more temmy :(
*/

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp> 
using namespace __gnu_pbds;
// #include<icecream.hpp>
// using namespace icecream;
#define ll long long
#define int ll
#define ld long double
#define y1 cheza
// mt19937 rng(1983413);
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class T> using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
const int N=2e5+100;
const int M=1e6;
const int B=317;
const int mod=998244353;
const int INF=1e18;
const int lg=64;
const int dx[]={1,-1,0,0};
const int dy[]={0,0,1,-1};
const double eps=1e-9;
int n,m,q;
vector<pair<int,int>>g[N];
int a[N];
int lx,rx;
int dfs(int x){

    for(auto [i,w]:g[x]){
        if(lx<=w&&w<=rx)continue;
        if(a[i]==-1){
            a[i]=a[x]^1;
            if(dfs(i)){
                return 1;
            }
        }
        else{
            if(a[i]==a[x]){
                return 1;
            }
        }
    }
    return 0;

}
bool check(){
    for(int i=1;i<=n;i++){
        a[i]=-1;
    }
    for(int i=1;i<=n;i++){
        if(a[i]==-1){
            if(dfs(i)){
                return 1;
            }
        }
    }
    return 0;
}
void test(){
    cin>>n>>m>>q;
    for(int i=1,x,y;i<=m;i++){
        cin>>x>>y;
        g[x].push_back({y,i});
        g[y].push_back({x,i});
    }
    int l=1;
    int r=m;
    while(l<=r){
        int mid=(l+r)>>1ll;
        lx=1;
        rx=mid;
        if(check()){
            l=mid+1;
        }
        else{
            r=mid-1;
        }
    }
    l--;

    for(;q--;){
        cin>>lx>>rx;
        if(lx==1){
            if(rx>l){
                cout<<"NO\n";
            }
            else{
                cout<<"YES\n";
            }
            continue;
        }
        for(int i=1;i<=n;i++){
            a[i]=-1;
        }
        int ans=0;
        for(int i=1;i<=n;i++){
            if(a[i]==-1){
                if(dfs(i)){
                    ans=1;
                    break;
                }
            }
        }
        if(ans){
            cout<<"YES\n";
        }
        else{
            cout<<"NO\n";
        }


    }
}
/*

*/  
 
signed main(){
    // ic.prefix("debug->| ");
    // freopen("input.txt","r",stdin);
    // freopen("output.txt","w",stdout);

    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    // cout.tie(nullptr);
    long long t2=1;
    //  cin>>t2;
    for(int i=1;i<=t2;i++){
        test();
    }
    
    return 0;
 
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6488 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6332 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 2 ms 6396 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6488 KB Output is correct
21 Correct 2 ms 6328 KB Output is correct
22 Correct 2 ms 6488 KB Output is correct
23 Correct 2 ms 6488 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6740 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6488 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6332 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 2 ms 6396 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6488 KB Output is correct
21 Correct 2 ms 6328 KB Output is correct
22 Correct 2 ms 6488 KB Output is correct
23 Correct 2 ms 6488 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6740 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 67 ms 6604 KB Output is correct
30 Correct 58 ms 6492 KB Output is correct
31 Correct 43 ms 6492 KB Output is correct
32 Correct 23 ms 6492 KB Output is correct
33 Correct 9 ms 6672 KB Output is correct
34 Correct 37 ms 6492 KB Output is correct
35 Correct 64 ms 6492 KB Output is correct
36 Correct 15 ms 6676 KB Output is correct
37 Correct 86 ms 6920 KB Output is correct
38 Correct 95 ms 6668 KB Output is correct
39 Correct 51 ms 6488 KB Output is correct
40 Correct 22 ms 6492 KB Output is correct
41 Correct 24 ms 6744 KB Output is correct
42 Correct 22 ms 6492 KB Output is correct
43 Correct 4 ms 6492 KB Output is correct
44 Correct 5 ms 6492 KB Output is correct
45 Correct 10 ms 6688 KB Output is correct
46 Correct 12 ms 6492 KB Output is correct
47 Correct 31 ms 6680 KB Output is correct
48 Correct 32 ms 6492 KB Output is correct
49 Correct 42 ms 6488 KB Output is correct
50 Correct 48 ms 6492 KB Output is correct
51 Correct 32 ms 6488 KB Output is correct
52 Correct 35 ms 6488 KB Output is correct
53 Correct 45 ms 6492 KB Output is correct
54 Correct 60 ms 6492 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 126 ms 16980 KB Output is correct
4 Correct 327 ms 18264 KB Output is correct
5 Correct 145 ms 17840 KB Output is correct
6 Correct 128 ms 18416 KB Output is correct
7 Correct 118 ms 17748 KB Output is correct
8 Correct 126 ms 18976 KB Output is correct
9 Correct 118 ms 18768 KB Output is correct
10 Correct 238 ms 17748 KB Output is correct
11 Correct 117 ms 17316 KB Output is correct
12 Correct 165 ms 17352 KB Output is correct
13 Correct 78 ms 18260 KB Output is correct
14 Correct 106 ms 18916 KB Output is correct
15 Correct 156 ms 18260 KB Output is correct
16 Correct 230 ms 17684 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6488 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6332 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 2 ms 6396 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6488 KB Output is correct
21 Correct 2 ms 6328 KB Output is correct
22 Correct 2 ms 6488 KB Output is correct
23 Correct 2 ms 6488 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6740 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 126 ms 16980 KB Output is correct
30 Correct 327 ms 18264 KB Output is correct
31 Correct 145 ms 17840 KB Output is correct
32 Correct 128 ms 18416 KB Output is correct
33 Correct 118 ms 17748 KB Output is correct
34 Correct 126 ms 18976 KB Output is correct
35 Correct 118 ms 18768 KB Output is correct
36 Correct 238 ms 17748 KB Output is correct
37 Correct 117 ms 17316 KB Output is correct
38 Correct 165 ms 17352 KB Output is correct
39 Correct 78 ms 18260 KB Output is correct
40 Correct 106 ms 18916 KB Output is correct
41 Correct 156 ms 18260 KB Output is correct
42 Correct 230 ms 17684 KB Output is correct
43 Execution timed out 2025 ms 17088 KB Time limit exceeded
44 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6488 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6332 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 2 ms 6396 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6488 KB Output is correct
21 Correct 2 ms 6328 KB Output is correct
22 Correct 2 ms 6488 KB Output is correct
23 Correct 2 ms 6488 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6740 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 67 ms 6604 KB Output is correct
30 Correct 58 ms 6492 KB Output is correct
31 Correct 43 ms 6492 KB Output is correct
32 Correct 23 ms 6492 KB Output is correct
33 Correct 9 ms 6672 KB Output is correct
34 Correct 37 ms 6492 KB Output is correct
35 Correct 64 ms 6492 KB Output is correct
36 Correct 15 ms 6676 KB Output is correct
37 Correct 86 ms 6920 KB Output is correct
38 Correct 95 ms 6668 KB Output is correct
39 Correct 51 ms 6488 KB Output is correct
40 Correct 22 ms 6492 KB Output is correct
41 Correct 24 ms 6744 KB Output is correct
42 Correct 22 ms 6492 KB Output is correct
43 Correct 4 ms 6492 KB Output is correct
44 Correct 5 ms 6492 KB Output is correct
45 Correct 10 ms 6688 KB Output is correct
46 Correct 12 ms 6492 KB Output is correct
47 Correct 31 ms 6680 KB Output is correct
48 Correct 32 ms 6492 KB Output is correct
49 Correct 42 ms 6488 KB Output is correct
50 Correct 48 ms 6492 KB Output is correct
51 Correct 32 ms 6488 KB Output is correct
52 Correct 35 ms 6488 KB Output is correct
53 Correct 45 ms 6492 KB Output is correct
54 Correct 60 ms 6492 KB Output is correct
55 Execution timed out 2059 ms 17276 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 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6488 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6332 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 2 ms 6396 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6488 KB Output is correct
21 Correct 2 ms 6328 KB Output is correct
22 Correct 2 ms 6488 KB Output is correct
23 Correct 2 ms 6488 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6740 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 67 ms 6604 KB Output is correct
30 Correct 58 ms 6492 KB Output is correct
31 Correct 43 ms 6492 KB Output is correct
32 Correct 23 ms 6492 KB Output is correct
33 Correct 9 ms 6672 KB Output is correct
34 Correct 37 ms 6492 KB Output is correct
35 Correct 64 ms 6492 KB Output is correct
36 Correct 15 ms 6676 KB Output is correct
37 Correct 86 ms 6920 KB Output is correct
38 Correct 95 ms 6668 KB Output is correct
39 Correct 51 ms 6488 KB Output is correct
40 Correct 22 ms 6492 KB Output is correct
41 Correct 24 ms 6744 KB Output is correct
42 Correct 22 ms 6492 KB Output is correct
43 Correct 4 ms 6492 KB Output is correct
44 Correct 5 ms 6492 KB Output is correct
45 Correct 10 ms 6688 KB Output is correct
46 Correct 12 ms 6492 KB Output is correct
47 Correct 31 ms 6680 KB Output is correct
48 Correct 32 ms 6492 KB Output is correct
49 Correct 42 ms 6488 KB Output is correct
50 Correct 48 ms 6492 KB Output is correct
51 Correct 32 ms 6488 KB Output is correct
52 Correct 35 ms 6488 KB Output is correct
53 Correct 45 ms 6492 KB Output is correct
54 Correct 60 ms 6492 KB Output is correct
55 Correct 126 ms 16980 KB Output is correct
56 Correct 327 ms 18264 KB Output is correct
57 Correct 145 ms 17840 KB Output is correct
58 Correct 128 ms 18416 KB Output is correct
59 Correct 118 ms 17748 KB Output is correct
60 Correct 126 ms 18976 KB Output is correct
61 Correct 118 ms 18768 KB Output is correct
62 Correct 238 ms 17748 KB Output is correct
63 Correct 117 ms 17316 KB Output is correct
64 Correct 165 ms 17352 KB Output is correct
65 Correct 78 ms 18260 KB Output is correct
66 Correct 106 ms 18916 KB Output is correct
67 Correct 156 ms 18260 KB Output is correct
68 Correct 230 ms 17684 KB Output is correct
69 Execution timed out 2025 ms 17088 KB Time limit exceeded
70 Halted 0 ms 0 KB -