oj.uz

Submission #599350

# Submission time Handle Problem Language Result Execution time Memory
599350 2022-07-19T12:51:14 Z OttoTheDino Joker (BOI20_joker) C++17
14 / 100
 2000 ms 7752 KB 
#include<bits/stdc++.h>
using namespace std;

#define rep(i,s,e)                          for (int i = s; i <= e; ++i)
#define rrep(i,s,e)                         for (int i = s; i >= e; --i)
#define fi                                  first
#define se                                  second
#define pb                                  push_back
typedef vector<int> vi;
typedef pair<int,int> ii;

const int mx = 2e5;
vi adj[mx+1];

int par[mx+1], h[mx+1], tp[mx+1];

ii get_par (int u) {
    if (u==par[u]) return {u, tp[u]};
    ii res = get_par (par[u]); 
    return {res.fi, res.se^tp[u]};
}

void merge (int u, int v) {
    ii paru = get_par(u), parv = get_par(v);
    if (h[paru.fi]<h[parv.fi]) swap(paru, parv);
    h[paru.fi] += h[paru.fi]==h[parv.fi];
    par[parv.fi] = paru.fi; 
    tp[parv.fi] ^= parv.se==paru.se;
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    int n, m, q; cin >>n >> m >> q;

    ii e[m+1];
    rep (i,1,m) cin >> e[i].fi >> e[i].se;

    while (q--) {
        int l, r; cin >> l >> r;
        bool got = 0;
        rep (j,1,n) {
            par[j] = j;
            h[j] = 1;
            tp[j] = 0;
        }
        rep (j,1,l-1) {
            ii parj = get_par(e[j].fi), parv = get_par(e[j].se);
            if (parj.fi==parv.fi) got |= (parj.se==parv.se);
            else merge(e[j].fi,e[j].se);
        }
        rrep (j,m,r+1) {
            ii parj = get_par(e[j].fi), parv = get_par(e[j].se);
            if (parj.fi==parv.fi) got |= (parj.se==parv.se);
            else merge(e[j].fi,e[j].se);
        }
        if (got) cout << "YES\n";
        else cout << "NO\n";
    }

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 5012 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5036 KB Output is correct
24 Correct 3 ms 4956 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 4 ms 4948 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 5012 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5036 KB Output is correct
24 Correct 3 ms 4956 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 4 ms 4948 KB Output is correct
29 Correct 48 ms 5064 KB Output is correct
30 Correct 71 ms 5064 KB Output is correct
31 Correct 84 ms 5076 KB Output is correct
32 Correct 71 ms 5052 KB Output is correct
33 Correct 68 ms 5052 KB Output is correct
34 Correct 81 ms 5072 KB Output is correct
35 Correct 84 ms 5060 KB Output is correct
36 Correct 48 ms 5052 KB Output is correct
37 Correct 82 ms 4948 KB Output is correct
38 Correct 99 ms 5052 KB Output is correct
39 Correct 57 ms 4948 KB Output is correct
40 Correct 65 ms 5076 KB Output is correct
41 Correct 60 ms 5052 KB Output is correct
42 Correct 60 ms 5056 KB Output is correct
43 Correct 109 ms 5044 KB Output is correct
44 Correct 115 ms 5032 KB Output is correct
45 Correct 120 ms 5048 KB Output is correct
46 Correct 121 ms 5052 KB Output is correct
47 Correct 64 ms 5048 KB Output is correct
48 Correct 72 ms 5056 KB Output is correct
49 Correct 73 ms 4948 KB Output is correct
50 Correct 76 ms 5068 KB Output is correct
51 Correct 74 ms 5036 KB Output is correct
52 Correct 76 ms 5056 KB Output is correct
53 Correct 76 ms 5068 KB Output is correct
54 Correct 78 ms 5072 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Execution timed out 2081 ms 7748 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 5012 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5036 KB Output is correct
24 Correct 3 ms 4956 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 4 ms 4948 KB Output is correct
29 Execution timed out 2081 ms 7748 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 5012 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5036 KB Output is correct
24 Correct 3 ms 4956 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 4 ms 4948 KB Output is correct
29 Correct 48 ms 5064 KB Output is correct
30 Correct 71 ms 5064 KB Output is correct
31 Correct 84 ms 5076 KB Output is correct
32 Correct 71 ms 5052 KB Output is correct
33 Correct 68 ms 5052 KB Output is correct
34 Correct 81 ms 5072 KB Output is correct
35 Correct 84 ms 5060 KB Output is correct
36 Correct 48 ms 5052 KB Output is correct
37 Correct 82 ms 4948 KB Output is correct
38 Correct 99 ms 5052 KB Output is correct
39 Correct 57 ms 4948 KB Output is correct
40 Correct 65 ms 5076 KB Output is correct
41 Correct 60 ms 5052 KB Output is correct
42 Correct 60 ms 5056 KB Output is correct
43 Correct 109 ms 5044 KB Output is correct
44 Correct 115 ms 5032 KB Output is correct
45 Correct 120 ms 5048 KB Output is correct
46 Correct 121 ms 5052 KB Output is correct
47 Correct 64 ms 5048 KB Output is correct
48 Correct 72 ms 5056 KB Output is correct
49 Correct 73 ms 4948 KB Output is correct
50 Correct 76 ms 5068 KB Output is correct
51 Correct 74 ms 5036 KB Output is correct
52 Correct 76 ms 5056 KB Output is correct
53 Correct 76 ms 5068 KB Output is correct
54 Correct 78 ms 5072 KB Output is correct
55 Execution timed out 2100 ms 7752 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 4 ms 5012 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5036 KB Output is correct
24 Correct 3 ms 4956 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 4 ms 4948 KB Output is correct
29 Correct 48 ms 5064 KB Output is correct
30 Correct 71 ms 5064 KB Output is correct
31 Correct 84 ms 5076 KB Output is correct
32 Correct 71 ms 5052 KB Output is correct
33 Correct 68 ms 5052 KB Output is correct
34 Correct 81 ms 5072 KB Output is correct
35 Correct 84 ms 5060 KB Output is correct
36 Correct 48 ms 5052 KB Output is correct
37 Correct 82 ms 4948 KB Output is correct
38 Correct 99 ms 5052 KB Output is correct
39 Correct 57 ms 4948 KB Output is correct
40 Correct 65 ms 5076 KB Output is correct
41 Correct 60 ms 5052 KB Output is correct
42 Correct 60 ms 5056 KB Output is correct
43 Correct 109 ms 5044 KB Output is correct
44 Correct 115 ms 5032 KB Output is correct
45 Correct 120 ms 5048 KB Output is correct
46 Correct 121 ms 5052 KB Output is correct
47 Correct 64 ms 5048 KB Output is correct
48 Correct 72 ms 5056 KB Output is correct
49 Correct 73 ms 4948 KB Output is correct
50 Correct 76 ms 5068 KB Output is correct
51 Correct 74 ms 5036 KB Output is correct
52 Correct 76 ms 5056 KB Output is correct
53 Correct 76 ms 5068 KB Output is correct
54 Correct 78 ms 5072 KB Output is correct
55 Execution timed out 2081 ms 7748 KB Time limit exceeded
56 Halted 0 ms 0 KB -