oj.uz

Submission #642414

# Submission time Handle Problem Language Result Execution time Memory
642414 2022-09-19T11:40:40 Z berr Joker (BOI20_joker) C++17
39 / 100
 2000 ms 32988 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});   
    }

    set<int> s;
    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
    {
   
        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";
        }
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 8 ms 16724 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16696 KB Output is correct
5 Correct 7 ms 16724 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 10 ms 16724 KB Output is correct
8 Correct 10 ms 16752 KB Output is correct
9 Correct 10 ms 16708 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 11 ms 16724 KB Output is correct
12 Correct 11 ms 16724 KB Output is correct
13 Correct 8 ms 16732 KB Output is correct
14 Correct 10 ms 16736 KB Output is correct
15 Correct 10 ms 16724 KB Output is correct
16 Correct 10 ms 16724 KB Output is correct
17 Correct 9 ms 16708 KB Output is correct
18 Correct 9 ms 16724 KB Output is correct
19 Correct 9 ms 16724 KB Output is correct
20 Correct 9 ms 16724 KB Output is correct
21 Correct 10 ms 16696 KB Output is correct
22 Correct 10 ms 16668 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16724 KB Output is correct
25 Correct 10 ms 16768 KB Output is correct
26 Correct 10 ms 16724 KB Output is correct
27 Correct 10 ms 16724 KB Output is correct
28 Correct 10 ms 16724 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 8 ms 16724 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16696 KB Output is correct
5 Correct 7 ms 16724 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 10 ms 16724 KB Output is correct
8 Correct 10 ms 16752 KB Output is correct
9 Correct 10 ms 16708 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 11 ms 16724 KB Output is correct
12 Correct 11 ms 16724 KB Output is correct
13 Correct 8 ms 16732 KB Output is correct
14 Correct 10 ms 16736 KB Output is correct
15 Correct 10 ms 16724 KB Output is correct
16 Correct 10 ms 16724 KB Output is correct
17 Correct 9 ms 16708 KB Output is correct
18 Correct 9 ms 16724 KB Output is correct
19 Correct 9 ms 16724 KB Output is correct
20 Correct 9 ms 16724 KB Output is correct
21 Correct 10 ms 16696 KB Output is correct
22 Correct 10 ms 16668 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16724 KB Output is correct
25 Correct 10 ms 16768 KB Output is correct
26 Correct 10 ms 16724 KB Output is correct
27 Correct 10 ms 16724 KB Output is correct
28 Correct 10 ms 16724 KB Output is correct
29 Correct 284 ms 16816 KB Output is correct
30 Correct 503 ms 16876 KB Output is correct
31 Correct 487 ms 16916 KB Output is correct
32 Correct 359 ms 16912 KB Output is correct
33 Correct 283 ms 16852 KB Output is correct
34 Correct 494 ms 16904 KB Output is correct
35 Correct 611 ms 16900 KB Output is correct
36 Correct 163 ms 16924 KB Output is correct
37 Correct 402 ms 17028 KB Output is correct
38 Correct 519 ms 16872 KB Output is correct
39 Correct 411 ms 17016 KB Output is correct
40 Correct 330 ms 16852 KB Output is correct
41 Correct 333 ms 16852 KB Output is correct
42 Correct 328 ms 16924 KB Output is correct
43 Correct 295 ms 16904 KB Output is correct
44 Correct 377 ms 16852 KB Output is correct
45 Correct 457 ms 16852 KB Output is correct
46 Correct 586 ms 16900 KB Output is correct
47 Correct 345 ms 16912 KB Output is correct
48 Correct 365 ms 16896 KB Output is correct
49 Correct 449 ms 17024 KB Output is correct
50 Correct 528 ms 16884 KB Output is correct
51 Correct 325 ms 16980 KB Output is correct
52 Correct 379 ms 16912 KB Output is correct
53 Correct 447 ms 16904 KB Output is correct
54 Correct 590 ms 17024 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 8 ms 16724 KB Output is correct
3 Correct 225 ms 30764 KB Output is correct
4 Correct 387 ms 31012 KB Output is correct
5 Correct 274 ms 29464 KB Output is correct
6 Correct 304 ms 31840 KB Output is correct
7 Correct 334 ms 31648 KB Output is correct
8 Correct 287 ms 31872 KB Output is correct
9 Correct 411 ms 32392 KB Output is correct
10 Correct 485 ms 30180 KB Output is correct
11 Correct 355 ms 30728 KB Output is correct
12 Correct 386 ms 29224 KB Output is correct
13 Correct 193 ms 30224 KB Output is correct
14 Correct 317 ms 31700 KB Output is correct
15 Correct 423 ms 31568 KB Output is correct
16 Correct 476 ms 30012 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 8 ms 16724 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16696 KB Output is correct
5 Correct 7 ms 16724 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 10 ms 16724 KB Output is correct
8 Correct 10 ms 16752 KB Output is correct
9 Correct 10 ms 16708 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 11 ms 16724 KB Output is correct
12 Correct 11 ms 16724 KB Output is correct
13 Correct 8 ms 16732 KB Output is correct
14 Correct 10 ms 16736 KB Output is correct
15 Correct 10 ms 16724 KB Output is correct
16 Correct 10 ms 16724 KB Output is correct
17 Correct 9 ms 16708 KB Output is correct
18 Correct 9 ms 16724 KB Output is correct
19 Correct 9 ms 16724 KB Output is correct
20 Correct 9 ms 16724 KB Output is correct
21 Correct 10 ms 16696 KB Output is correct
22 Correct 10 ms 16668 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16724 KB Output is correct
25 Correct 10 ms 16768 KB Output is correct
26 Correct 10 ms 16724 KB Output is correct
27 Correct 10 ms 16724 KB Output is correct
28 Correct 10 ms 16724 KB Output is correct
29 Correct 225 ms 30764 KB Output is correct
30 Correct 387 ms 31012 KB Output is correct
31 Correct 274 ms 29464 KB Output is correct
32 Correct 304 ms 31840 KB Output is correct
33 Correct 334 ms 31648 KB Output is correct
34 Correct 287 ms 31872 KB Output is correct
35 Correct 411 ms 32392 KB Output is correct
36 Correct 485 ms 30180 KB Output is correct
37 Correct 355 ms 30728 KB Output is correct
38 Correct 386 ms 29224 KB Output is correct
39 Correct 193 ms 30224 KB Output is correct
40 Correct 317 ms 31700 KB Output is correct
41 Correct 423 ms 31568 KB Output is correct
42 Correct 476 ms 30012 KB Output is correct
43 Execution timed out 2041 ms 32988 KB Time limit exceeded
44 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 8 ms 16724 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16696 KB Output is correct
5 Correct 7 ms 16724 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 10 ms 16724 KB Output is correct
8 Correct 10 ms 16752 KB Output is correct
9 Correct 10 ms 16708 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 11 ms 16724 KB Output is correct
12 Correct 11 ms 16724 KB Output is correct
13 Correct 8 ms 16732 KB Output is correct
14 Correct 10 ms 16736 KB Output is correct
15 Correct 10 ms 16724 KB Output is correct
16 Correct 10 ms 16724 KB Output is correct
17 Correct 9 ms 16708 KB Output is correct
18 Correct 9 ms 16724 KB Output is correct
19 Correct 9 ms 16724 KB Output is correct
20 Correct 9 ms 16724 KB Output is correct
21 Correct 10 ms 16696 KB Output is correct
22 Correct 10 ms 16668 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16724 KB Output is correct
25 Correct 10 ms 16768 KB Output is correct
26 Correct 10 ms 16724 KB Output is correct
27 Correct 10 ms 16724 KB Output is correct
28 Correct 10 ms 16724 KB Output is correct
29 Correct 284 ms 16816 KB Output is correct
30 Correct 503 ms 16876 KB Output is correct
31 Correct 487 ms 16916 KB Output is correct
32 Correct 359 ms 16912 KB Output is correct
33 Correct 283 ms 16852 KB Output is correct
34 Correct 494 ms 16904 KB Output is correct
35 Correct 611 ms 16900 KB Output is correct
36 Correct 163 ms 16924 KB Output is correct
37 Correct 402 ms 17028 KB Output is correct
38 Correct 519 ms 16872 KB Output is correct
39 Correct 411 ms 17016 KB Output is correct
40 Correct 330 ms 16852 KB Output is correct
41 Correct 333 ms 16852 KB Output is correct
42 Correct 328 ms 16924 KB Output is correct
43 Correct 295 ms 16904 KB Output is correct
44 Correct 377 ms 16852 KB Output is correct
45 Correct 457 ms 16852 KB Output is correct
46 Correct 586 ms 16900 KB Output is correct
47 Correct 345 ms 16912 KB Output is correct
48 Correct 365 ms 16896 KB Output is correct
49 Correct 449 ms 17024 KB Output is correct
50 Correct 528 ms 16884 KB Output is correct
51 Correct 325 ms 16980 KB Output is correct
52 Correct 379 ms 16912 KB Output is correct
53 Correct 447 ms 16904 KB Output is correct
54 Correct 590 ms 17024 KB Output is correct
55 Execution timed out 2080 ms 31820 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 8 ms 16724 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 9 ms 16696 KB Output is correct
5 Correct 7 ms 16724 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 10 ms 16724 KB Output is correct
8 Correct 10 ms 16752 KB Output is correct
9 Correct 10 ms 16708 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 11 ms 16724 KB Output is correct
12 Correct 11 ms 16724 KB Output is correct
13 Correct 8 ms 16732 KB Output is correct
14 Correct 10 ms 16736 KB Output is correct
15 Correct 10 ms 16724 KB Output is correct
16 Correct 10 ms 16724 KB Output is correct
17 Correct 9 ms 16708 KB Output is correct
18 Correct 9 ms 16724 KB Output is correct
19 Correct 9 ms 16724 KB Output is correct
20 Correct 9 ms 16724 KB Output is correct
21 Correct 10 ms 16696 KB Output is correct
22 Correct 10 ms 16668 KB Output is correct
23 Correct 10 ms 16724 KB Output is correct
24 Correct 11 ms 16724 KB Output is correct
25 Correct 10 ms 16768 KB Output is correct
26 Correct 10 ms 16724 KB Output is correct
27 Correct 10 ms 16724 KB Output is correct
28 Correct 10 ms 16724 KB Output is correct
29 Correct 284 ms 16816 KB Output is correct
30 Correct 503 ms 16876 KB Output is correct
31 Correct 487 ms 16916 KB Output is correct
32 Correct 359 ms 16912 KB Output is correct
33 Correct 283 ms 16852 KB Output is correct
34 Correct 494 ms 16904 KB Output is correct
35 Correct 611 ms 16900 KB Output is correct
36 Correct 163 ms 16924 KB Output is correct
37 Correct 402 ms 17028 KB Output is correct
38 Correct 519 ms 16872 KB Output is correct
39 Correct 411 ms 17016 KB Output is correct
40 Correct 330 ms 16852 KB Output is correct
41 Correct 333 ms 16852 KB Output is correct
42 Correct 328 ms 16924 KB Output is correct
43 Correct 295 ms 16904 KB Output is correct
44 Correct 377 ms 16852 KB Output is correct
45 Correct 457 ms 16852 KB Output is correct
46 Correct 586 ms 16900 KB Output is correct
47 Correct 345 ms 16912 KB Output is correct
48 Correct 365 ms 16896 KB Output is correct
49 Correct 449 ms 17024 KB Output is correct
50 Correct 528 ms 16884 KB Output is correct
51 Correct 325 ms 16980 KB Output is correct
52 Correct 379 ms 16912 KB Output is correct
53 Correct 447 ms 16904 KB Output is correct
54 Correct 590 ms 17024 KB Output is correct
55 Correct 225 ms 30764 KB Output is correct
56 Correct 387 ms 31012 KB Output is correct
57 Correct 274 ms 29464 KB Output is correct
58 Correct 304 ms 31840 KB Output is correct
59 Correct 334 ms 31648 KB Output is correct
60 Correct 287 ms 31872 KB Output is correct
61 Correct 411 ms 32392 KB Output is correct
62 Correct 485 ms 30180 KB Output is correct
63 Correct 355 ms 30728 KB Output is correct
64 Correct 386 ms 29224 KB Output is correct
65 Correct 193 ms 30224 KB Output is correct
66 Correct 317 ms 31700 KB Output is correct
67 Correct 423 ms 31568 KB Output is correct
68 Correct 476 ms 30012 KB Output is correct
69 Execution timed out 2041 ms 32988 KB Time limit exceeded
70 Halted 0 ms 0 KB -