oj.uz

Submission #599291

# Submission time Handle Problem Language Result Execution time Memory
599291 2022-07-19T12:26:12 Z OttoTheDino Joker (BOI20_joker) C++17
49 / 100
 1550 ms 13896 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;

    int L = min(m,199);

    if (n<=2000) L = m;

    int ans[L+1] = {};

    rep (i,0,L) {
        bool got = 0;
        rep (j,1,n) {
            par[j] = j;
            h[j] = 1;
            tp[j] = 0;
        }
        rep (j,1,i) {
            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,i) {
            if (got) {
                ans[i] = j+1;
                break;
            }
            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);
        }
    }

    while (q--) {
        int l, r; cin >> l >> r;
        if (ans[l-1]>r) 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 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 5024 KB Output is correct
14 Correct 4 ms 5020 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5020 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 4 ms 5020 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 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 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 5024 KB Output is correct
14 Correct 4 ms 5020 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5020 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 4 ms 5020 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 KB Output is correct
29 Correct 26 ms 5072 KB Output is correct
30 Correct 62 ms 5076 KB Output is correct
31 Correct 77 ms 5096 KB Output is correct
32 Correct 69 ms 5084 KB Output is correct
33 Correct 58 ms 5076 KB Output is correct
34 Correct 67 ms 5108 KB Output is correct
35 Correct 73 ms 5100 KB Output is correct
36 Correct 55 ms 5092 KB Output is correct
37 Correct 86 ms 5076 KB Output is correct
38 Correct 116 ms 5076 KB Output is correct
39 Correct 50 ms 5092 KB Output is correct
40 Correct 55 ms 5080 KB Output is correct
41 Correct 53 ms 5076 KB Output is correct
42 Correct 51 ms 5076 KB Output is correct
43 Correct 68 ms 5088 KB Output is correct
44 Correct 74 ms 5032 KB Output is correct
45 Correct 63 ms 5092 KB Output is correct
46 Correct 73 ms 5104 KB Output is correct
47 Correct 53 ms 5076 KB Output is correct
48 Correct 68 ms 5088 KB Output is correct
49 Correct 72 ms 5088 KB Output is correct
50 Correct 75 ms 5088 KB Output is correct
51 Correct 68 ms 5076 KB Output is correct
52 Correct 64 ms 5084 KB Output is correct
53 Correct 67 ms 5028 KB Output is correct
54 Correct 87 ms 5076 KB Output is correct

Subtask #3
25.0 / 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 Correct 691 ms 12332 KB Output is correct
4 Correct 1550 ms 12996 KB Output is correct
5 Correct 219 ms 13544 KB Output is correct
6 Correct 168 ms 12352 KB Output is correct
7 Correct 180 ms 12364 KB Output is correct
8 Correct 409 ms 11404 KB Output is correct
9 Correct 484 ms 11836 KB Output is correct
10 Correct 927 ms 13252 KB Output is correct
11 Correct 832 ms 12352 KB Output is correct
12 Correct 765 ms 13416 KB Output is correct
13 Correct 707 ms 11280 KB Output is correct
14 Correct 441 ms 11876 KB Output is correct
15 Correct 771 ms 12832 KB Output is correct
16 Correct 908 ms 13636 KB Output is correct

Subtask #4
10.0 / 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 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 5024 KB Output is correct
14 Correct 4 ms 5020 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5020 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 4 ms 5020 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 KB Output is correct
29 Correct 691 ms 12332 KB Output is correct
30 Correct 1550 ms 12996 KB Output is correct
31 Correct 219 ms 13544 KB Output is correct
32 Correct 168 ms 12352 KB Output is correct
33 Correct 180 ms 12364 KB Output is correct
34 Correct 409 ms 11404 KB Output is correct
35 Correct 484 ms 11836 KB Output is correct
36 Correct 927 ms 13252 KB Output is correct
37 Correct 832 ms 12352 KB Output is correct
38 Correct 765 ms 13416 KB Output is correct
39 Correct 707 ms 11280 KB Output is correct
40 Correct 441 ms 11876 KB Output is correct
41 Correct 771 ms 12832 KB Output is correct
42 Correct 908 ms 13636 KB Output is correct
43 Correct 687 ms 12608 KB Output is correct
44 Correct 1517 ms 13512 KB Output is correct
45 Correct 1398 ms 13824 KB Output is correct
46 Correct 137 ms 12820 KB Output is correct
47 Correct 148 ms 12836 KB Output is correct
48 Correct 532 ms 12352 KB Output is correct
49 Correct 933 ms 13632 KB Output is correct
50 Correct 848 ms 12368 KB Output is correct
51 Correct 866 ms 13204 KB Output is correct
52 Correct 802 ms 13840 KB Output is correct
53 Correct 596 ms 11584 KB Output is correct
54 Correct 544 ms 12372 KB Output is correct
55 Correct 863 ms 13204 KB Output is correct
56 Correct 975 ms 13896 KB Output is correct

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 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 5024 KB Output is correct
14 Correct 4 ms 5020 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5020 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 4 ms 5020 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 KB Output is correct
29 Correct 26 ms 5072 KB Output is correct
30 Correct 62 ms 5076 KB Output is correct
31 Correct 77 ms 5096 KB Output is correct
32 Correct 69 ms 5084 KB Output is correct
33 Correct 58 ms 5076 KB Output is correct
34 Correct 67 ms 5108 KB Output is correct
35 Correct 73 ms 5100 KB Output is correct
36 Correct 55 ms 5092 KB Output is correct
37 Correct 86 ms 5076 KB Output is correct
38 Correct 116 ms 5076 KB Output is correct
39 Correct 50 ms 5092 KB Output is correct
40 Correct 55 ms 5080 KB Output is correct
41 Correct 53 ms 5076 KB Output is correct
42 Correct 51 ms 5076 KB Output is correct
43 Correct 68 ms 5088 KB Output is correct
44 Correct 74 ms 5032 KB Output is correct
45 Correct 63 ms 5092 KB Output is correct
46 Correct 73 ms 5104 KB Output is correct
47 Correct 53 ms 5076 KB Output is correct
48 Correct 68 ms 5088 KB Output is correct
49 Correct 72 ms 5088 KB Output is correct
50 Correct 75 ms 5088 KB Output is correct
51 Correct 68 ms 5076 KB Output is correct
52 Correct 64 ms 5084 KB Output is correct
53 Correct 67 ms 5028 KB Output is correct
54 Correct 87 ms 5076 KB Output is correct
55 Incorrect 632 ms 10092 KB Output isn't correct
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 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5020 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4936 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 3 ms 5024 KB Output is correct
14 Correct 4 ms 5020 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5020 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 4 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 4 ms 5020 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 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 5076 KB Output is correct
29 Correct 26 ms 5072 KB Output is correct
30 Correct 62 ms 5076 KB Output is correct
31 Correct 77 ms 5096 KB Output is correct
32 Correct 69 ms 5084 KB Output is correct
33 Correct 58 ms 5076 KB Output is correct
34 Correct 67 ms 5108 KB Output is correct
35 Correct 73 ms 5100 KB Output is correct
36 Correct 55 ms 5092 KB Output is correct
37 Correct 86 ms 5076 KB Output is correct
38 Correct 116 ms 5076 KB Output is correct
39 Correct 50 ms 5092 KB Output is correct
40 Correct 55 ms 5080 KB Output is correct
41 Correct 53 ms 5076 KB Output is correct
42 Correct 51 ms 5076 KB Output is correct
43 Correct 68 ms 5088 KB Output is correct
44 Correct 74 ms 5032 KB Output is correct
45 Correct 63 ms 5092 KB Output is correct
46 Correct 73 ms 5104 KB Output is correct
47 Correct 53 ms 5076 KB Output is correct
48 Correct 68 ms 5088 KB Output is correct
49 Correct 72 ms 5088 KB Output is correct
50 Correct 75 ms 5088 KB Output is correct
51 Correct 68 ms 5076 KB Output is correct
52 Correct 64 ms 5084 KB Output is correct
53 Correct 67 ms 5028 KB Output is correct
54 Correct 87 ms 5076 KB Output is correct
55 Correct 691 ms 12332 KB Output is correct
56 Correct 1550 ms 12996 KB Output is correct
57 Correct 219 ms 13544 KB Output is correct
58 Correct 168 ms 12352 KB Output is correct
59 Correct 180 ms 12364 KB Output is correct
60 Correct 409 ms 11404 KB Output is correct
61 Correct 484 ms 11836 KB Output is correct
62 Correct 927 ms 13252 KB Output is correct
63 Correct 832 ms 12352 KB Output is correct
64 Correct 765 ms 13416 KB Output is correct
65 Correct 707 ms 11280 KB Output is correct
66 Correct 441 ms 11876 KB Output is correct
67 Correct 771 ms 12832 KB Output is correct
68 Correct 908 ms 13636 KB Output is correct
69 Correct 687 ms 12608 KB Output is correct
70 Correct 1517 ms 13512 KB Output is correct
71 Correct 1398 ms 13824 KB Output is correct
72 Correct 137 ms 12820 KB Output is correct
73 Correct 148 ms 12836 KB Output is correct
74 Correct 532 ms 12352 KB Output is correct
75 Correct 933 ms 13632 KB Output is correct
76 Correct 848 ms 12368 KB Output is correct
77 Correct 866 ms 13204 KB Output is correct
78 Correct 802 ms 13840 KB Output is correct
79 Correct 596 ms 11584 KB Output is correct
80 Correct 544 ms 12372 KB Output is correct
81 Correct 863 ms 13204 KB Output is correct
82 Correct 975 ms 13896 KB Output is correct
83 Incorrect 632 ms 10092 KB Output isn't correct
84 Halted 0 ms 0 KB -