답안 #750662

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
750662	2023-05-30T05:41:58 Z	GrindMachine	Joker (BOI20_joker)	C++17	49 / 100	1581 ms	85292 KB

Joker

// Om Namah Shivaya

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x, y) ((x + y - 1) / (y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "YES" << endl
#define no cout << "NO" << endl

#define rep(i, n) for(int i = 0; i < n; ++i)
#define rep1(i, n) for(int i = 1; i <= n; ++i)
#define rev(i, s, e) for(int i = s; i >= e; --i)
#define trav(i, a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a, b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a, b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif

/*



*/

const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;

struct DSU {
    vector<int> par, rankk, siz;
    vector<int> weight;
    bool is_bip;

    DSU() {

    }

    DSU(int n) {
        init(n);
    }

    void init(int n) {
        par = vector<int>(n + 1);
        rankk = vector<int>(n + 1);
        siz = vector<int>(n + 1);
        weight = vector<int>(n + 1);
        is_bip = true;
        rep(i, n + 1) create(i);
    }

    void create(int u) {
        par[u] = u;
        rankk[u] = 0;
        siz[u] = 1;
        weight[u] = 0;
    }

    pii find(int u) {
        if (u == par[u]) return {u,0};
        auto [p, cp] = find(par[u]);
        return {p, cp ^ weight[u]};        
    }

    bool same(int u, int v) {
        return find(u).ff == find(v).ff;
    }

    void merge(int u, int v) {
        auto [pu,cu] = find(u);
        auto [pv,cv] = find(v);

        if(pu == pv){
            if(cu == cv){
                is_bip = false;
            }

            return;
        }

        int w = cu ^ cv ^ 1;
        u = pu, v = pv;

        if (rankk[u] == rankk[v]) rankk[u]++;
        if (rankk[u] < rankk[v]) swap(u, v);

        par[v] = u;
        siz[u] += siz[v];
        weight[v] = w;
    }
};

void solve(int test_case)
{
    int n,m,q; cin >> n >> m >> q;
    vector<pii> edges(m+5);
    rep1(i,m) cin >> edges[i].ff >> edges[i].ss;

    if(max({n,m,q}) <= 2000){

        while(q--){
            int l,r; cin >> l >> r;
            DSU dsu(n+5);
     
            rep1(i,m){
                if(i < l or i > r){
                    auto [u,v] = edges[i];
                    dsu.merge(u,v);
                }
            }
     
            if(!dsu.is_bip){
                yes;
            }
            else{
                no;
            }
        }

        return;
    
    }

    bool ans[min(m,200)+5][m+5];
    memset(ans,0,sizeof ans);

    for(int l = 1; l <= min(m,200); ++l){
        DSU dsu(n+5);
        rep1(i,l-1){
            auto [u,v] = edges[i];
            dsu.merge(u,v);
        }

        rev(i,m+1,l){
            if(i <= m){
                auto [u,v] = edges[i];
                dsu.merge(u,v);
            }

            if(!dsu.is_bip){
                rev(j,i-1,l){
                    ans[l][j] = 1;
                }

                break;
            }
        }
    }

    while(q--){
        int l,r; cin >> l >> r;
        if(ans[l][r]) yes;
        else no;
    }
}

int main()
{
    fastio;

    int t = 1;
    // cin >> t;

    rep1(i, t) {
        solve(i);
    }

    return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	38 ms	364 KB	Output is correct
30	Correct	59 ms	344 KB	Output is correct
31	Correct	72 ms	344 KB	Output is correct
32	Correct	60 ms	340 KB	Output is correct
33	Correct	51 ms	348 KB	Output is correct
34	Correct	61 ms	364 KB	Output is correct
35	Correct	68 ms	364 KB	Output is correct
36	Correct	38 ms	340 KB	Output is correct
37	Correct	63 ms	368 KB	Output is correct
38	Correct	79 ms	352 KB	Output is correct
39	Correct	49 ms	340 KB	Output is correct
40	Correct	51 ms	340 KB	Output is correct
41	Correct	48 ms	356 KB	Output is correct
42	Correct	47 ms	340 KB	Output is correct
43	Correct	80 ms	344 KB	Output is correct
44	Correct	90 ms	340 KB	Output is correct
45	Correct	86 ms	468 KB	Output is correct
46	Correct	82 ms	360 KB	Output is correct
47	Correct	50 ms	340 KB	Output is correct
48	Correct	54 ms	340 KB	Output is correct
49	Correct	53 ms	356 KB	Output is correct
50	Correct	58 ms	368 KB	Output is correct
51	Correct	52 ms	344 KB	Output is correct
52	Correct	57 ms	352 KB	Output is correct
53	Correct	61 ms	352 KB	Output is correct
54	Correct	71 ms	340 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	732 ms	43692 KB	Output is correct
4	Correct	1552 ms	45140 KB	Output is correct
5	Correct	409 ms	45024 KB	Output is correct
6	Correct	291 ms	43752 KB	Output is correct
7	Correct	273 ms	43564 KB	Output is correct
8	Correct	491 ms	42956 KB	Output is correct
9	Correct	586 ms	43552 KB	Output is correct
10	Correct	1113 ms	45368 KB	Output is correct
11	Correct	836 ms	43604 KB	Output is correct
12	Correct	973 ms	45040 KB	Output is correct
13	Correct	646 ms	42648 KB	Output is correct
14	Correct	450 ms	43100 KB	Output is correct
15	Correct	896 ms	44388 KB	Output is correct
16	Correct	1148 ms	45488 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	732 ms	43692 KB	Output is correct
30	Correct	1552 ms	45140 KB	Output is correct
31	Correct	409 ms	45024 KB	Output is correct
32	Correct	291 ms	43752 KB	Output is correct
33	Correct	273 ms	43564 KB	Output is correct
34	Correct	491 ms	42956 KB	Output is correct
35	Correct	586 ms	43552 KB	Output is correct
36	Correct	1113 ms	45368 KB	Output is correct
37	Correct	836 ms	43604 KB	Output is correct
38	Correct	973 ms	45040 KB	Output is correct
39	Correct	646 ms	42648 KB	Output is correct
40	Correct	450 ms	43100 KB	Output is correct
41	Correct	896 ms	44388 KB	Output is correct
42	Correct	1148 ms	45488 KB	Output is correct
43	Correct	740 ms	43692 KB	Output is correct
44	Correct	1581 ms	45392 KB	Output is correct
45	Correct	1495 ms	45364 KB	Output is correct
46	Correct	244 ms	43944 KB	Output is correct
47	Correct	260 ms	43776 KB	Output is correct
48	Correct	682 ms	43920 KB	Output is correct
49	Correct	1141 ms	45292 KB	Output is correct
50	Correct	928 ms	43480 KB	Output is correct
51	Correct	955 ms	44416 KB	Output is correct
52	Correct	1066 ms	45472 KB	Output is correct
53	Correct	525 ms	42656 KB	Output is correct
54	Correct	595 ms	43524 KB	Output is correct
55	Correct	905 ms	44272 KB	Output is correct
56	Correct	1198 ms	45384 KB	Output is correct

Subtask #5
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	38 ms	364 KB	Output is correct
30	Correct	59 ms	344 KB	Output is correct
31	Correct	72 ms	344 KB	Output is correct
32	Correct	60 ms	340 KB	Output is correct
33	Correct	51 ms	348 KB	Output is correct
34	Correct	61 ms	364 KB	Output is correct
35	Correct	68 ms	364 KB	Output is correct
36	Correct	38 ms	340 KB	Output is correct
37	Correct	63 ms	368 KB	Output is correct
38	Correct	79 ms	352 KB	Output is correct
39	Correct	49 ms	340 KB	Output is correct
40	Correct	51 ms	340 KB	Output is correct
41	Correct	48 ms	356 KB	Output is correct
42	Correct	47 ms	340 KB	Output is correct
43	Correct	80 ms	344 KB	Output is correct
44	Correct	90 ms	340 KB	Output is correct
45	Correct	86 ms	468 KB	Output is correct
46	Correct	82 ms	360 KB	Output is correct
47	Correct	50 ms	340 KB	Output is correct
48	Correct	54 ms	340 KB	Output is correct
49	Correct	53 ms	356 KB	Output is correct
50	Correct	58 ms	368 KB	Output is correct
51	Correct	52 ms	344 KB	Output is correct
52	Correct	57 ms	352 KB	Output is correct
53	Correct	61 ms	352 KB	Output is correct
54	Correct	71 ms	340 KB	Output is correct
55	Runtime error	730 ms	85292 KB	Execution killed with signal 11
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	38 ms	364 KB	Output is correct
30	Correct	59 ms	344 KB	Output is correct
31	Correct	72 ms	344 KB	Output is correct
32	Correct	60 ms	340 KB	Output is correct
33	Correct	51 ms	348 KB	Output is correct
34	Correct	61 ms	364 KB	Output is correct
35	Correct	68 ms	364 KB	Output is correct
36	Correct	38 ms	340 KB	Output is correct
37	Correct	63 ms	368 KB	Output is correct
38	Correct	79 ms	352 KB	Output is correct
39	Correct	49 ms	340 KB	Output is correct
40	Correct	51 ms	340 KB	Output is correct
41	Correct	48 ms	356 KB	Output is correct
42	Correct	47 ms	340 KB	Output is correct
43	Correct	80 ms	344 KB	Output is correct
44	Correct	90 ms	340 KB	Output is correct
45	Correct	86 ms	468 KB	Output is correct
46	Correct	82 ms	360 KB	Output is correct
47	Correct	50 ms	340 KB	Output is correct
48	Correct	54 ms	340 KB	Output is correct
49	Correct	53 ms	356 KB	Output is correct
50	Correct	58 ms	368 KB	Output is correct
51	Correct	52 ms	344 KB	Output is correct
52	Correct	57 ms	352 KB	Output is correct
53	Correct	61 ms	352 KB	Output is correct
54	Correct	71 ms	340 KB	Output is correct
55	Correct	732 ms	43692 KB	Output is correct
56	Correct	1552 ms	45140 KB	Output is correct
57	Correct	409 ms	45024 KB	Output is correct
58	Correct	291 ms	43752 KB	Output is correct
59	Correct	273 ms	43564 KB	Output is correct
60	Correct	491 ms	42956 KB	Output is correct
61	Correct	586 ms	43552 KB	Output is correct
62	Correct	1113 ms	45368 KB	Output is correct
63	Correct	836 ms	43604 KB	Output is correct
64	Correct	973 ms	45040 KB	Output is correct
65	Correct	646 ms	42648 KB	Output is correct
66	Correct	450 ms	43100 KB	Output is correct
67	Correct	896 ms	44388 KB	Output is correct
68	Correct	1148 ms	45488 KB	Output is correct
69	Correct	740 ms	43692 KB	Output is correct
70	Correct	1581 ms	45392 KB	Output is correct
71	Correct	1495 ms	45364 KB	Output is correct
72	Correct	244 ms	43944 KB	Output is correct
73	Correct	260 ms	43776 KB	Output is correct
74	Correct	682 ms	43920 KB	Output is correct
75	Correct	1141 ms	45292 KB	Output is correct
76	Correct	928 ms	43480 KB	Output is correct
77	Correct	955 ms	44416 KB	Output is correct
78	Correct	1066 ms	45472 KB	Output is correct
79	Correct	525 ms	42656 KB	Output is correct
80	Correct	595 ms	43524 KB	Output is correct
81	Correct	905 ms	44272 KB	Output is correct
82	Correct	1198 ms	45384 KB	Output is correct
83	Runtime error	730 ms	85292 KB	Execution killed with signal 11
84	Halted	0 ms	0 KB	-

답안 #750662

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 8.0 / 8.0

Subtask #3 25.0 / 25.0

Subtask #4 10.0 / 10.0

Subtask #5 0 / 22.0

Subtask #6 0 / 29.0

Subtask #1
6.0 / 6.0

Subtask #2
8.0 / 8.0

Subtask #3
25.0 / 25.0

Subtask #4
10.0 / 10.0

Subtask #5
0 / 22.0

Subtask #6
0 / 29.0