답안 #446933

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
446933	2021-07-23T23:49:59 Z	Ozy	Joker (BOI20_joker)	C++17	100 / 100	897 ms	15360 KB

Joker

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for (int i = (a); i <= (b); i++)
#define repa(i,a,b) for (int i = (a); i >= (b); i--)
#define lli long long int
#define debug(a) cout << #a << " = " << a << endl
#define debugsl(a) cout << #a << " = " << a << ", "

#define MAX 200000
#define val first
#define x second

lli n,m,q,c,d;
lli res[MAX+2],from[MAX+2],to[MAX+2],xr[MAX+2],padres[MAX+2],tam[MAX+2];
lli bip;
stack<pair<lli,lli> > histo;

pair<lli,lli> Find(lli a) {
    if (padres[a] == a) return {a, xr[a]};
    pair<lli,lli> nuevo = Find(padres[a]);
    nuevo.x ^= xr[a];
    return nuevo;
}

void Undo() {
    pair<lli,lli> a = histo.top();
    histo.pop();

    if (a.first == -1) {
        bip = a.second;
        return;
    }
    padres[a.second] = a.second;
    tam[a.first] -= tam[a.second];
    xr[a.second] = 0;
}

void Union(lli a, lli b) {
    pair<lli,lli> A = Find(a);
    pair<lli,lli> B = Find(b);

    if (A.val == B.val) {
        histo.push({-1,bip});
        if (A.x == B.x) bip = 0;
        return;
    }

    if (tam[A.val] < tam[B.val]) swap(A,B);
    xr[B.val] = 1ll ^ A.x ^ B.x;
    padres[B.val] = A.val;
    tam[A.val] += tam[B.val];
    histo.push({A.val, B.val});
}

void DC(lli ini, lli fin, lli l, lli r) {

    if (ini > fin) return;
    lli sum = 0;
    lli op;
    lli mitad = (ini+fin)/2;

    res[mitad] = m+1;
    rep (i,ini,mitad-1) {Union(from[i],to[i]); sum++;}
    repa(i,r,max(mitad,l)) {Union(from[i],to[i]); sum++;}

    if (bip) res[mitad] = max(mitad,l) - 1;
    else {
        rep(i,max(mitad,l),r) {
            Undo();
            sum--;
            if (bip) {
                res[mitad] = i;
                while (sum) {Undo(); sum--;}
                break;
            }
        }
    }

    while (sum) {Undo(); sum--;}
    op = min(res[mitad],m);

    rep(i,ini,mitad) {Union(from[i], to[i]); sum++;}
    DC(mitad+1,fin,op,r);
    while (sum) {Undo(); sum--;}

    rep(i,op+1,r) {Union(from[i], to[i]); sum++;}
    DC(ini,mitad-1,l,op);
    while (sum) {Undo(); sum--;}
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n >> m >> q;
    rep(i,1,m) cin >> from[i] >> to[i];

    bip = 1;
    rep(i,1,n) {padres[i] = i; tam[i] = 1;}
    DC(1,m,1,m);

    rep(i,1,q) {
        cin >> c >> d;
        if (res[c] <= d) cout << "NO\n";
        else cout << "YES\n";
    }
    return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	316 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	320 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	316 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	320 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	2 ms	460 KB	Output is correct
30	Correct	3 ms	460 KB	Output is correct
31	Correct	4 ms	460 KB	Output is correct
32	Correct	3 ms	472 KB	Output is correct
33	Correct	3 ms	460 KB	Output is correct
34	Correct	4 ms	460 KB	Output is correct
35	Correct	4 ms	460 KB	Output is correct
36	Correct	3 ms	460 KB	Output is correct
37	Correct	5 ms	460 KB	Output is correct
38	Correct	4 ms	460 KB	Output is correct
39	Correct	4 ms	460 KB	Output is correct
40	Correct	3 ms	460 KB	Output is correct
41	Correct	3 ms	384 KB	Output is correct
42	Correct	3 ms	460 KB	Output is correct
43	Correct	3 ms	460 KB	Output is correct
44	Correct	3 ms	388 KB	Output is correct
45	Correct	3 ms	460 KB	Output is correct
46	Correct	4 ms	460 KB	Output is correct
47	Correct	3 ms	460 KB	Output is correct
48	Correct	3 ms	396 KB	Output is correct
49	Correct	3 ms	460 KB	Output is correct
50	Correct	3 ms	460 KB	Output is correct
51	Correct	3 ms	460 KB	Output is correct
52	Correct	3 ms	460 KB	Output is correct
53	Correct	4 ms	460 KB	Output is correct
54	Correct	4 ms	460 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	409 ms	11732 KB	Output is correct
4	Correct	489 ms	15076 KB	Output is correct
5	Correct	540 ms	14052 KB	Output is correct
6	Correct	505 ms	12156 KB	Output is correct
7	Correct	586 ms	12176 KB	Output is correct
8	Correct	602 ms	11896 KB	Output is correct
9	Correct	645 ms	12240 KB	Output is correct
10	Correct	801 ms	14592 KB	Output is correct
11	Correct	528 ms	12732 KB	Output is correct
12	Correct	629 ms	14060 KB	Output is correct
13	Correct	530 ms	10396 KB	Output is correct
14	Correct	619 ms	11800 KB	Output is correct
15	Correct	739 ms	13272 KB	Output is correct
16	Correct	797 ms	14548 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	316 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	320 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	409 ms	11732 KB	Output is correct
30	Correct	489 ms	15076 KB	Output is correct
31	Correct	540 ms	14052 KB	Output is correct
32	Correct	505 ms	12156 KB	Output is correct
33	Correct	586 ms	12176 KB	Output is correct
34	Correct	602 ms	11896 KB	Output is correct
35	Correct	645 ms	12240 KB	Output is correct
36	Correct	801 ms	14592 KB	Output is correct
37	Correct	528 ms	12732 KB	Output is correct
38	Correct	629 ms	14060 KB	Output is correct
39	Correct	530 ms	10396 KB	Output is correct
40	Correct	619 ms	11800 KB	Output is correct
41	Correct	739 ms	13272 KB	Output is correct
42	Correct	797 ms	14548 KB	Output is correct
43	Correct	430 ms	12852 KB	Output is correct
44	Correct	457 ms	15092 KB	Output is correct
45	Correct	640 ms	15128 KB	Output is correct
46	Correct	513 ms	12824 KB	Output is correct
47	Correct	583 ms	12736 KB	Output is correct
48	Correct	748 ms	11748 KB	Output is correct
49	Correct	854 ms	14560 KB	Output is correct
50	Correct	539 ms	11628 KB	Output is correct
51	Correct	579 ms	13692 KB	Output is correct
52	Correct	700 ms	13996 KB	Output is correct
53	Correct	537 ms	9568 KB	Output is correct
54	Correct	675 ms	12316 KB	Output is correct
55	Correct	794 ms	12384 KB	Output is correct
56	Correct	897 ms	14228 KB	Output is correct

Subtask #5
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	316 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	320 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	2 ms	460 KB	Output is correct
30	Correct	3 ms	460 KB	Output is correct
31	Correct	4 ms	460 KB	Output is correct
32	Correct	3 ms	472 KB	Output is correct
33	Correct	3 ms	460 KB	Output is correct
34	Correct	4 ms	460 KB	Output is correct
35	Correct	4 ms	460 KB	Output is correct
36	Correct	3 ms	460 KB	Output is correct
37	Correct	5 ms	460 KB	Output is correct
38	Correct	4 ms	460 KB	Output is correct
39	Correct	4 ms	460 KB	Output is correct
40	Correct	3 ms	460 KB	Output is correct
41	Correct	3 ms	384 KB	Output is correct
42	Correct	3 ms	460 KB	Output is correct
43	Correct	3 ms	460 KB	Output is correct
44	Correct	3 ms	388 KB	Output is correct
45	Correct	3 ms	460 KB	Output is correct
46	Correct	4 ms	460 KB	Output is correct
47	Correct	3 ms	460 KB	Output is correct
48	Correct	3 ms	396 KB	Output is correct
49	Correct	3 ms	460 KB	Output is correct
50	Correct	3 ms	460 KB	Output is correct
51	Correct	3 ms	460 KB	Output is correct
52	Correct	3 ms	460 KB	Output is correct
53	Correct	4 ms	460 KB	Output is correct
54	Correct	4 ms	460 KB	Output is correct
55	Correct	376 ms	12180 KB	Output is correct
56	Correct	399 ms	14480 KB	Output is correct
57	Correct	581 ms	14048 KB	Output is correct
58	Correct	527 ms	12192 KB	Output is correct
59	Correct	634 ms	12280 KB	Output is correct
60	Correct	836 ms	13620 KB	Output is correct
61	Correct	510 ms	12140 KB	Output is correct
62	Correct	552 ms	14008 KB	Output is correct
63	Correct	537 ms	10896 KB	Output is correct
64	Correct	656 ms	12656 KB	Output is correct
65	Correct	856 ms	13988 KB	Output is correct

Subtask #6
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	316 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	320 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	2 ms	460 KB	Output is correct
30	Correct	3 ms	460 KB	Output is correct
31	Correct	4 ms	460 KB	Output is correct
32	Correct	3 ms	472 KB	Output is correct
33	Correct	3 ms	460 KB	Output is correct
34	Correct	4 ms	460 KB	Output is correct
35	Correct	4 ms	460 KB	Output is correct
36	Correct	3 ms	460 KB	Output is correct
37	Correct	5 ms	460 KB	Output is correct
38	Correct	4 ms	460 KB	Output is correct
39	Correct	4 ms	460 KB	Output is correct
40	Correct	3 ms	460 KB	Output is correct
41	Correct	3 ms	384 KB	Output is correct
42	Correct	3 ms	460 KB	Output is correct
43	Correct	3 ms	460 KB	Output is correct
44	Correct	3 ms	388 KB	Output is correct
45	Correct	3 ms	460 KB	Output is correct
46	Correct	4 ms	460 KB	Output is correct
47	Correct	3 ms	460 KB	Output is correct
48	Correct	3 ms	396 KB	Output is correct
49	Correct	3 ms	460 KB	Output is correct
50	Correct	3 ms	460 KB	Output is correct
51	Correct	3 ms	460 KB	Output is correct
52	Correct	3 ms	460 KB	Output is correct
53	Correct	4 ms	460 KB	Output is correct
54	Correct	4 ms	460 KB	Output is correct
55	Correct	409 ms	11732 KB	Output is correct
56	Correct	489 ms	15076 KB	Output is correct
57	Correct	540 ms	14052 KB	Output is correct
58	Correct	505 ms	12156 KB	Output is correct
59	Correct	586 ms	12176 KB	Output is correct
60	Correct	602 ms	11896 KB	Output is correct
61	Correct	645 ms	12240 KB	Output is correct
62	Correct	801 ms	14592 KB	Output is correct
63	Correct	528 ms	12732 KB	Output is correct
64	Correct	629 ms	14060 KB	Output is correct
65	Correct	530 ms	10396 KB	Output is correct
66	Correct	619 ms	11800 KB	Output is correct
67	Correct	739 ms	13272 KB	Output is correct
68	Correct	797 ms	14548 KB	Output is correct
69	Correct	430 ms	12852 KB	Output is correct
70	Correct	457 ms	15092 KB	Output is correct
71	Correct	640 ms	15128 KB	Output is correct
72	Correct	513 ms	12824 KB	Output is correct
73	Correct	583 ms	12736 KB	Output is correct
74	Correct	748 ms	11748 KB	Output is correct
75	Correct	854 ms	14560 KB	Output is correct
76	Correct	539 ms	11628 KB	Output is correct
77	Correct	579 ms	13692 KB	Output is correct
78	Correct	700 ms	13996 KB	Output is correct
79	Correct	537 ms	9568 KB	Output is correct
80	Correct	675 ms	12316 KB	Output is correct
81	Correct	794 ms	12384 KB	Output is correct
82	Correct	897 ms	14228 KB	Output is correct
83	Correct	376 ms	12180 KB	Output is correct
84	Correct	399 ms	14480 KB	Output is correct
85	Correct	581 ms	14048 KB	Output is correct
86	Correct	527 ms	12192 KB	Output is correct
87	Correct	634 ms	12280 KB	Output is correct
88	Correct	836 ms	13620 KB	Output is correct
89	Correct	510 ms	12140 KB	Output is correct
90	Correct	552 ms	14008 KB	Output is correct
91	Correct	537 ms	10896 KB	Output is correct
92	Correct	656 ms	12656 KB	Output is correct
93	Correct	856 ms	13988 KB	Output is correct
94	Correct	430 ms	12776 KB	Output is correct
95	Correct	512 ms	15076 KB	Output is correct
96	Correct	537 ms	13452 KB	Output is correct
97	Correct	533 ms	12936 KB	Output is correct
98	Correct	561 ms	13120 KB	Output is correct
99	Correct	621 ms	12024 KB	Output is correct
100	Correct	769 ms	15360 KB	Output is correct
101	Correct	563 ms	11196 KB	Output is correct
102	Correct	581 ms	12556 KB	Output is correct
103	Correct	718 ms	13956 KB	Output is correct
104	Correct	595 ms	10012 KB	Output is correct
105	Correct	705 ms	13180 KB	Output is correct
106	Correct	851 ms	13276 KB	Output is correct
107	Correct	297 ms	14912 KB	Output is correct
108	Correct	413 ms	12536 KB	Output is correct
109	Correct	413 ms	12488 KB	Output is correct
110	Correct	416 ms	12488 KB	Output is correct
111	Correct	409 ms	12472 KB	Output is correct
112	Correct	405 ms	12488 KB	Output is correct
113	Correct	395 ms	12488 KB	Output is correct
114	Correct	406 ms	12356 KB	Output is correct
115	Correct	405 ms	12344 KB	Output is correct
116	Correct	405 ms	12444 KB	Output is correct

답안 #446933

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 22.0 / 22.0

Subtask #6 29.0 / 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
22.0 / 22.0

Subtask #6
29.0 / 29.0