oj.uz

Submission #642413

# Submission time Handle Problem Language Result Execution time Memory
642413 2022-09-19T11:38:50 Z berr Joker (BOI20_joker) C++17
14 / 100
 2000 ms 34788 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
int n, m, q, flag;
vector<array<int, 2>> adj[(int)3e5], check((int)3e5);
vector<int> val((int)3e5, 1e18), vis((int)(3e5), -1);


void dfs(int p, int x, int y, int z, int par)
{
    vis[p]=z%2;
    if(y<x) swap(x, y);
    for(auto i: adj[p])
    {
        if(i[1]>=x&&i[1]<=y) continue;
        if(i[0]==par) continue;
        if(vis[i[0]]==-1)  dfs(i[0], x, y, z+1, p);
        else if(vis[i[0]]!=-1&&(z+vis[i[0]]+1)%2==1) flag=1; 
    }
}

int bs(int pos)
{
 
    int s=pos;
    for(int i=20; i>=0; i--)
    {
        if(s+(1<<i)<=m) 
        {
            int tmp=(s+(1<<i));
            for(int i=1; i<=n; i++) vis[i]=-1;
            flag=0;

            for(int i=1; i<=n; i++) if(vis[i]==-1) dfs(i, pos, tmp, 0, i);
            if(flag==1) s=tmp;

        }
    }

                for(int i=1; i<=n; i++) vis[i]=-1;
            flag=0;
                    for(int i=1; i<=n; i++) if(vis[i]==-1) dfs(i, pos, s, 0, i);
                        if(flag==0) s--;
    return s;
}

int32_t main()
{
    ios_base::sync_with_stdio(false); cin.tie(0);
    
     cin>>n>>m>>q;

    for(int i=1; i<=m; i++)
    {
        int x, y; cin>>x>>y;
        adj[x].push_back({y, i});
        adj[y].push_back({x, i});   
    }


    if(n<=2000&&m<=2000&&q<=2000)
    {
        while(q--)
        {
            int l, r; cin>>l>>r;
            if(val[l]==1e18)
            val[l]=bs(l);
            if(val[l]<r) cout<<"NO\n";
            else cout<<"YES\n";
        }
    }
    else
    {
        for(int i=1; i<=200; i++)
        {
            val[i]=bs(i);
        }

        while(q--)
        {
            int l, r; cin>>l>>r;
            if(r>val[l]) cout<<"NO\n";
            else cout<<"YES\n";
        }
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16684 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16724 KB Output is correct
5 Correct 8 ms 16724 KB Output is correct
6 Correct 8 ms 16652 KB Output is correct
7 Correct 10 ms 16900 KB Output is correct
8 Correct 11 ms 16772 KB Output is correct
9 Correct 11 ms 16772 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 12 ms 16724 KB Output is correct
12 Correct 12 ms 16756 KB Output is correct
13 Correct 10 ms 16724 KB Output is correct
14 Correct 11 ms 16768 KB Output is correct
15 Correct 13 ms 16776 KB Output is correct
16 Correct 11 ms 16772 KB Output is correct
17 Correct 11 ms 16724 KB Output is correct
18 Correct 11 ms 16704 KB Output is correct
19 Correct 10 ms 16724 KB Output is correct
20 Correct 11 ms 16780 KB Output is correct
21 Correct 11 ms 16772 KB Output is correct
22 Correct 11 ms 16776 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16692 KB Output is correct
25 Correct 11 ms 16772 KB Output is correct
26 Correct 11 ms 16772 KB Output is correct
27 Correct 11 ms 16696 KB Output is correct
28 Correct 12 ms 16772 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16684 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16724 KB Output is correct
5 Correct 8 ms 16724 KB Output is correct
6 Correct 8 ms 16652 KB Output is correct
7 Correct 10 ms 16900 KB Output is correct
8 Correct 11 ms 16772 KB Output is correct
9 Correct 11 ms 16772 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 12 ms 16724 KB Output is correct
12 Correct 12 ms 16756 KB Output is correct
13 Correct 10 ms 16724 KB Output is correct
14 Correct 11 ms 16768 KB Output is correct
15 Correct 13 ms 16776 KB Output is correct
16 Correct 11 ms 16772 KB Output is correct
17 Correct 11 ms 16724 KB Output is correct
18 Correct 11 ms 16704 KB Output is correct
19 Correct 10 ms 16724 KB Output is correct
20 Correct 11 ms 16780 KB Output is correct
21 Correct 11 ms 16772 KB Output is correct
22 Correct 11 ms 16776 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16692 KB Output is correct
25 Correct 11 ms 16772 KB Output is correct
26 Correct 11 ms 16772 KB Output is correct
27 Correct 11 ms 16696 KB Output is correct
28 Correct 12 ms 16772 KB Output is correct
29 Correct 281 ms 16820 KB Output is correct
30 Correct 513 ms 17028 KB Output is correct
31 Correct 475 ms 16852 KB Output is correct
32 Correct 348 ms 16944 KB Output is correct
33 Correct 265 ms 16932 KB Output is correct
34 Correct 495 ms 16972 KB Output is correct
35 Correct 609 ms 16940 KB Output is correct
36 Correct 148 ms 16852 KB Output is correct
37 Correct 383 ms 16936 KB Output is correct
38 Correct 497 ms 16912 KB Output is correct
39 Correct 398 ms 16936 KB Output is correct
40 Correct 315 ms 16852 KB Output is correct
41 Correct 318 ms 16852 KB Output is correct
42 Correct 333 ms 17108 KB Output is correct
43 Correct 282 ms 16932 KB Output is correct
44 Correct 377 ms 16952 KB Output is correct
45 Correct 445 ms 16860 KB Output is correct
46 Correct 577 ms 16976 KB Output is correct
47 Correct 322 ms 16928 KB Output is correct
48 Correct 353 ms 17068 KB Output is correct
49 Correct 425 ms 16852 KB Output is correct
50 Correct 524 ms 16932 KB Output is correct
51 Correct 318 ms 16944 KB Output is correct
52 Correct 372 ms 16852 KB Output is correct
53 Correct 438 ms 17032 KB Output is correct
54 Correct 570 ms 16852 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16684 KB Output is correct
3 Execution timed out 2066 ms 32380 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16684 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16724 KB Output is correct
5 Correct 8 ms 16724 KB Output is correct
6 Correct 8 ms 16652 KB Output is correct
7 Correct 10 ms 16900 KB Output is correct
8 Correct 11 ms 16772 KB Output is correct
9 Correct 11 ms 16772 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 12 ms 16724 KB Output is correct
12 Correct 12 ms 16756 KB Output is correct
13 Correct 10 ms 16724 KB Output is correct
14 Correct 11 ms 16768 KB Output is correct
15 Correct 13 ms 16776 KB Output is correct
16 Correct 11 ms 16772 KB Output is correct
17 Correct 11 ms 16724 KB Output is correct
18 Correct 11 ms 16704 KB Output is correct
19 Correct 10 ms 16724 KB Output is correct
20 Correct 11 ms 16780 KB Output is correct
21 Correct 11 ms 16772 KB Output is correct
22 Correct 11 ms 16776 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16692 KB Output is correct
25 Correct 11 ms 16772 KB Output is correct
26 Correct 11 ms 16772 KB Output is correct
27 Correct 11 ms 16696 KB Output is correct
28 Correct 12 ms 16772 KB Output is correct
29 Execution timed out 2066 ms 32380 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16684 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16724 KB Output is correct
5 Correct 8 ms 16724 KB Output is correct
6 Correct 8 ms 16652 KB Output is correct
7 Correct 10 ms 16900 KB Output is correct
8 Correct 11 ms 16772 KB Output is correct
9 Correct 11 ms 16772 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 12 ms 16724 KB Output is correct
12 Correct 12 ms 16756 KB Output is correct
13 Correct 10 ms 16724 KB Output is correct
14 Correct 11 ms 16768 KB Output is correct
15 Correct 13 ms 16776 KB Output is correct
16 Correct 11 ms 16772 KB Output is correct
17 Correct 11 ms 16724 KB Output is correct
18 Correct 11 ms 16704 KB Output is correct
19 Correct 10 ms 16724 KB Output is correct
20 Correct 11 ms 16780 KB Output is correct
21 Correct 11 ms 16772 KB Output is correct
22 Correct 11 ms 16776 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16692 KB Output is correct
25 Correct 11 ms 16772 KB Output is correct
26 Correct 11 ms 16772 KB Output is correct
27 Correct 11 ms 16696 KB Output is correct
28 Correct 12 ms 16772 KB Output is correct
29 Correct 281 ms 16820 KB Output is correct
30 Correct 513 ms 17028 KB Output is correct
31 Correct 475 ms 16852 KB Output is correct
32 Correct 348 ms 16944 KB Output is correct
33 Correct 265 ms 16932 KB Output is correct
34 Correct 495 ms 16972 KB Output is correct
35 Correct 609 ms 16940 KB Output is correct
36 Correct 148 ms 16852 KB Output is correct
37 Correct 383 ms 16936 KB Output is correct
38 Correct 497 ms 16912 KB Output is correct
39 Correct 398 ms 16936 KB Output is correct
40 Correct 315 ms 16852 KB Output is correct
41 Correct 318 ms 16852 KB Output is correct
42 Correct 333 ms 17108 KB Output is correct
43 Correct 282 ms 16932 KB Output is correct
44 Correct 377 ms 16952 KB Output is correct
45 Correct 445 ms 16860 KB Output is correct
46 Correct 577 ms 16976 KB Output is correct
47 Correct 322 ms 16928 KB Output is correct
48 Correct 353 ms 17068 KB Output is correct
49 Correct 425 ms 16852 KB Output is correct
50 Correct 524 ms 16932 KB Output is correct
51 Correct 318 ms 16944 KB Output is correct
52 Correct 372 ms 16852 KB Output is correct
53 Correct 438 ms 17032 KB Output is correct
54 Correct 570 ms 16852 KB Output is correct
55 Execution timed out 2082 ms 34788 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16684 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16724 KB Output is correct
5 Correct 8 ms 16724 KB Output is correct
6 Correct 8 ms 16652 KB Output is correct
7 Correct 10 ms 16900 KB Output is correct
8 Correct 11 ms 16772 KB Output is correct
9 Correct 11 ms 16772 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 12 ms 16724 KB Output is correct
12 Correct 12 ms 16756 KB Output is correct
13 Correct 10 ms 16724 KB Output is correct
14 Correct 11 ms 16768 KB Output is correct
15 Correct 13 ms 16776 KB Output is correct
16 Correct 11 ms 16772 KB Output is correct
17 Correct 11 ms 16724 KB Output is correct
18 Correct 11 ms 16704 KB Output is correct
19 Correct 10 ms 16724 KB Output is correct
20 Correct 11 ms 16780 KB Output is correct
21 Correct 11 ms 16772 KB Output is correct
22 Correct 11 ms 16776 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16692 KB Output is correct
25 Correct 11 ms 16772 KB Output is correct
26 Correct 11 ms 16772 KB Output is correct
27 Correct 11 ms 16696 KB Output is correct
28 Correct 12 ms 16772 KB Output is correct
29 Correct 281 ms 16820 KB Output is correct
30 Correct 513 ms 17028 KB Output is correct
31 Correct 475 ms 16852 KB Output is correct
32 Correct 348 ms 16944 KB Output is correct
33 Correct 265 ms 16932 KB Output is correct
34 Correct 495 ms 16972 KB Output is correct
35 Correct 609 ms 16940 KB Output is correct
36 Correct 148 ms 16852 KB Output is correct
37 Correct 383 ms 16936 KB Output is correct
38 Correct 497 ms 16912 KB Output is correct
39 Correct 398 ms 16936 KB Output is correct
40 Correct 315 ms 16852 KB Output is correct
41 Correct 318 ms 16852 KB Output is correct
42 Correct 333 ms 17108 KB Output is correct
43 Correct 282 ms 16932 KB Output is correct
44 Correct 377 ms 16952 KB Output is correct
45 Correct 445 ms 16860 KB Output is correct
46 Correct 577 ms 16976 KB Output is correct
47 Correct 322 ms 16928 KB Output is correct
48 Correct 353 ms 17068 KB Output is correct
49 Correct 425 ms 16852 KB Output is correct
50 Correct 524 ms 16932 KB Output is correct
51 Correct 318 ms 16944 KB Output is correct
52 Correct 372 ms 16852 KB Output is correct
53 Correct 438 ms 17032 KB Output is correct
54 Correct 570 ms 16852 KB Output is correct
55 Execution timed out 2066 ms 32380 KB Time limit exceeded
56 Halted 0 ms 0 KB -