답안 #970446

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
970446	2024-04-26T14:25:53 Z	maxFedorchuk	Joker (BOI20_joker)	C++17	100 / 100	357 ms	16752 KB

Joker

#include <bits/stdc++.h>
#define va first
#define vb second
#define all(x) (x).begin(), (x).end()
using namespace std;
typedef pair<int,int> pii;
	
const int MN = 2e5+5;
	
int N,M,Q,pos;
int par[MN<<1],sz[MN<<1],ans[MN];
pii E[MN];
	
vector<pii> qu;
vector<int> cnt;
	
int fnd(int u)
{
	return u==par[u] ? u : fnd(par[u]);
}
	
void join(int u, int v)
{
	u = fnd(u), v = fnd(v);
	if(u==v) u = v = 0;
	if(sz[u]>sz[v]) swap(u,v);
	qu.push_back({u,v});
	par[u] = v;
	sz[v] += sz[u];
	
}
	
void upt(int x)
{
	if(x>M){
		join(0,0);
		join(0,0);
		cnt.push_back(0);
		return;
	}
	if(!x){
		for(int i=0; i<2; i++){
			pii q = qu.back();
			sz[q.vb] -= sz[q.va];
			par[q.va] = q.va;
			qu.pop_back();
		}
		pos -= cnt.back();
		cnt.pop_back();
	}
	else{
		join(E[x].va,E[x].vb+N);
		join(E[x].va+N,E[x].vb);
		if(fnd(E[x].va)==fnd(E[x].va+N)){
			pos++;
			cnt.push_back(1);
		}
		else cnt.push_back(0);
	}
}
	
void solve(int s, int e, int x, int y)
{
	if(s>e) return;
	int m = (s+e)/2;
	int z = y;
	for(int i=s; i<m; i++) upt(i);
	while(1){
		upt(z);
		if(pos||z==m){
			ans[m] = z;
			break;
		}
		z--;
	}
	for(int i=z; i<=y; i++) upt(0);
	for(int i=s; i<m; i++) upt(0);
	
	for(int i=z+1; i<=y; i++) upt(i);	
	solve(s,m-1,x,z);
	for(int i=z+1; i<=y; i++) upt(0);	
	
	for(int i=s; i<=m; i++) upt(i);
	solve(m+1,e,max(m+1,z),y);
	for(int i=s; i<=m; i++) upt(0);
}
	
int main()
{
	ios_base::sync_with_stdio(0),cin.tie(0);
	cin >> N >> M >> Q;
	
	for(int i=1; i<=M; i++) cin >> E[i].va >> E[i].vb;
	
	for(int i=1; i<=2*N; i++){
		par[i] = i;
		sz[i] = 1;
	}
	solve(1,M,1,M+1);
	
	while(Q--){
		int l,r;
		cin >> l >> r;
		cout << (r<ans[l] ? "YES\n" : "NO\n");
	}
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	2 ms	4560 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	2 ms	4488 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	2 ms	4560 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	2 ms	4488 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct
29	Correct	2 ms	4440 KB	Output is correct
30	Correct	3 ms	4440 KB	Output is correct
31	Correct	2 ms	4444 KB	Output is correct
32	Correct	3 ms	4444 KB	Output is correct
33	Correct	3 ms	4444 KB	Output is correct
34	Correct	2 ms	4524 KB	Output is correct
35	Correct	3 ms	4444 KB	Output is correct
36	Correct	2 ms	4444 KB	Output is correct
37	Correct	3 ms	4684 KB	Output is correct
38	Correct	3 ms	4440 KB	Output is correct
39	Correct	2 ms	4656 KB	Output is correct
40	Correct	2 ms	4440 KB	Output is correct
41	Correct	2 ms	4444 KB	Output is correct
42	Correct	2 ms	4444 KB	Output is correct
43	Correct	2 ms	4440 KB	Output is correct
44	Correct	3 ms	4656 KB	Output is correct
45	Correct	2 ms	4444 KB	Output is correct
46	Correct	3 ms	4444 KB	Output is correct
47	Correct	3 ms	4444 KB	Output is correct
48	Correct	2 ms	4444 KB	Output is correct
49	Correct	3 ms	4444 KB	Output is correct
50	Correct	2 ms	4444 KB	Output is correct
51	Correct	2 ms	4444 KB	Output is correct
52	Correct	2 ms	4440 KB	Output is correct
53	Correct	3 ms	4444 KB	Output is correct
54	Correct	3 ms	4440 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	225 ms	15616 KB	Output is correct
4	Correct	310 ms	15352 KB	Output is correct
5	Correct	183 ms	15444 KB	Output is correct
6	Correct	252 ms	14648 KB	Output is correct
7	Correct	268 ms	15384 KB	Output is correct
8	Correct	280 ms	13840 KB	Output is correct
9	Correct	304 ms	14012 KB	Output is correct
10	Correct	333 ms	15216 KB	Output is correct
11	Correct	254 ms	14776 KB	Output is correct
12	Correct	269 ms	15372 KB	Output is correct
13	Correct	266 ms	14108 KB	Output is correct
14	Correct	285 ms	15180 KB	Output is correct
15	Correct	343 ms	15480 KB	Output is correct
16	Correct	354 ms	15416 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	2 ms	4560 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	2 ms	4488 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct
29	Correct	225 ms	15616 KB	Output is correct
30	Correct	310 ms	15352 KB	Output is correct
31	Correct	183 ms	15444 KB	Output is correct
32	Correct	252 ms	14648 KB	Output is correct
33	Correct	268 ms	15384 KB	Output is correct
34	Correct	280 ms	13840 KB	Output is correct
35	Correct	304 ms	14012 KB	Output is correct
36	Correct	333 ms	15216 KB	Output is correct
37	Correct	254 ms	14776 KB	Output is correct
38	Correct	269 ms	15372 KB	Output is correct
39	Correct	266 ms	14108 KB	Output is correct
40	Correct	285 ms	15180 KB	Output is correct
41	Correct	343 ms	15480 KB	Output is correct
42	Correct	354 ms	15416 KB	Output is correct
43	Correct	266 ms	15596 KB	Output is correct
44	Correct	325 ms	15380 KB	Output is correct
45	Correct	261 ms	15868 KB	Output is correct
46	Correct	256 ms	15100 KB	Output is correct
47	Correct	254 ms	15608 KB	Output is correct
48	Correct	315 ms	15096 KB	Output is correct
49	Correct	345 ms	15888 KB	Output is correct
50	Correct	234 ms	15168 KB	Output is correct
51	Correct	270 ms	16384 KB	Output is correct
52	Correct	330 ms	16376 KB	Output is correct
53	Correct	270 ms	14564 KB	Output is correct
54	Correct	340 ms	15480 KB	Output is correct
55	Correct	357 ms	15496 KB	Output is correct
56	Correct	332 ms	15864 KB	Output is correct

Subtask #5
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	2 ms	4560 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	2 ms	4488 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct
29	Correct	2 ms	4440 KB	Output is correct
30	Correct	3 ms	4440 KB	Output is correct
31	Correct	2 ms	4444 KB	Output is correct
32	Correct	3 ms	4444 KB	Output is correct
33	Correct	3 ms	4444 KB	Output is correct
34	Correct	2 ms	4524 KB	Output is correct
35	Correct	3 ms	4444 KB	Output is correct
36	Correct	2 ms	4444 KB	Output is correct
37	Correct	3 ms	4684 KB	Output is correct
38	Correct	3 ms	4440 KB	Output is correct
39	Correct	2 ms	4656 KB	Output is correct
40	Correct	2 ms	4440 KB	Output is correct
41	Correct	2 ms	4444 KB	Output is correct
42	Correct	2 ms	4444 KB	Output is correct
43	Correct	2 ms	4440 KB	Output is correct
44	Correct	3 ms	4656 KB	Output is correct
45	Correct	2 ms	4444 KB	Output is correct
46	Correct	3 ms	4444 KB	Output is correct
47	Correct	3 ms	4444 KB	Output is correct
48	Correct	2 ms	4444 KB	Output is correct
49	Correct	3 ms	4444 KB	Output is correct
50	Correct	2 ms	4444 KB	Output is correct
51	Correct	2 ms	4444 KB	Output is correct
52	Correct	2 ms	4440 KB	Output is correct
53	Correct	3 ms	4444 KB	Output is correct
54	Correct	3 ms	4440 KB	Output is correct
55	Correct	208 ms	13544 KB	Output is correct
56	Correct	277 ms	13576 KB	Output is correct
57	Correct	164 ms	13724 KB	Output is correct
58	Correct	226 ms	12780 KB	Output is correct
59	Correct	293 ms	13988 KB	Output is correct
60	Correct	350 ms	13824 KB	Output is correct
61	Correct	243 ms	13984 KB	Output is correct
62	Correct	268 ms	14084 KB	Output is correct
63	Correct	247 ms	13568 KB	Output is correct
64	Correct	328 ms	13100 KB	Output is correct
65	Correct	316 ms	15104 KB	Output is correct

Subtask #6
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	2 ms	4560 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	2 ms	4488 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct
29	Correct	2 ms	4440 KB	Output is correct
30	Correct	3 ms	4440 KB	Output is correct
31	Correct	2 ms	4444 KB	Output is correct
32	Correct	3 ms	4444 KB	Output is correct
33	Correct	3 ms	4444 KB	Output is correct
34	Correct	2 ms	4524 KB	Output is correct
35	Correct	3 ms	4444 KB	Output is correct
36	Correct	2 ms	4444 KB	Output is correct
37	Correct	3 ms	4684 KB	Output is correct
38	Correct	3 ms	4440 KB	Output is correct
39	Correct	2 ms	4656 KB	Output is correct
40	Correct	2 ms	4440 KB	Output is correct
41	Correct	2 ms	4444 KB	Output is correct
42	Correct	2 ms	4444 KB	Output is correct
43	Correct	2 ms	4440 KB	Output is correct
44	Correct	3 ms	4656 KB	Output is correct
45	Correct	2 ms	4444 KB	Output is correct
46	Correct	3 ms	4444 KB	Output is correct
47	Correct	3 ms	4444 KB	Output is correct
48	Correct	2 ms	4444 KB	Output is correct
49	Correct	3 ms	4444 KB	Output is correct
50	Correct	2 ms	4444 KB	Output is correct
51	Correct	2 ms	4444 KB	Output is correct
52	Correct	2 ms	4440 KB	Output is correct
53	Correct	3 ms	4444 KB	Output is correct
54	Correct	3 ms	4440 KB	Output is correct
55	Correct	225 ms	15616 KB	Output is correct
56	Correct	310 ms	15352 KB	Output is correct
57	Correct	183 ms	15444 KB	Output is correct
58	Correct	252 ms	14648 KB	Output is correct
59	Correct	268 ms	15384 KB	Output is correct
60	Correct	280 ms	13840 KB	Output is correct
61	Correct	304 ms	14012 KB	Output is correct
62	Correct	333 ms	15216 KB	Output is correct
63	Correct	254 ms	14776 KB	Output is correct
64	Correct	269 ms	15372 KB	Output is correct
65	Correct	266 ms	14108 KB	Output is correct
66	Correct	285 ms	15180 KB	Output is correct
67	Correct	343 ms	15480 KB	Output is correct
68	Correct	354 ms	15416 KB	Output is correct
69	Correct	266 ms	15596 KB	Output is correct
70	Correct	325 ms	15380 KB	Output is correct
71	Correct	261 ms	15868 KB	Output is correct
72	Correct	256 ms	15100 KB	Output is correct
73	Correct	254 ms	15608 KB	Output is correct
74	Correct	315 ms	15096 KB	Output is correct
75	Correct	345 ms	15888 KB	Output is correct
76	Correct	234 ms	15168 KB	Output is correct
77	Correct	270 ms	16384 KB	Output is correct
78	Correct	330 ms	16376 KB	Output is correct
79	Correct	270 ms	14564 KB	Output is correct
80	Correct	340 ms	15480 KB	Output is correct
81	Correct	357 ms	15496 KB	Output is correct
82	Correct	332 ms	15864 KB	Output is correct
83	Correct	208 ms	13544 KB	Output is correct
84	Correct	277 ms	13576 KB	Output is correct
85	Correct	164 ms	13724 KB	Output is correct
86	Correct	226 ms	12780 KB	Output is correct
87	Correct	293 ms	13988 KB	Output is correct
88	Correct	350 ms	13824 KB	Output is correct
89	Correct	243 ms	13984 KB	Output is correct
90	Correct	268 ms	14084 KB	Output is correct
91	Correct	247 ms	13568 KB	Output is correct
92	Correct	328 ms	13100 KB	Output is correct
93	Correct	316 ms	15104 KB	Output is correct
94	Correct	230 ms	16124 KB	Output is correct
95	Correct	271 ms	16380 KB	Output is correct
96	Correct	189 ms	16380 KB	Output is correct
97	Correct	271 ms	15612 KB	Output is correct
98	Correct	267 ms	15864 KB	Output is correct
99	Correct	308 ms	15352 KB	Output is correct
100	Correct	334 ms	16520 KB	Output is correct
101	Correct	243 ms	15612 KB	Output is correct
102	Correct	281 ms	16188 KB	Output is correct
103	Correct	312 ms	16636 KB	Output is correct
104	Correct	279 ms	15844 KB	Output is correct
105	Correct	357 ms	16408 KB	Output is correct
106	Correct	355 ms	16720 KB	Output is correct
107	Correct	178 ms	16752 KB	Output is correct
108	Correct	227 ms	15308 KB	Output is correct
109	Correct	221 ms	16104 KB	Output is correct
110	Correct	214 ms	16284 KB	Output is correct
111	Correct	221 ms	15888 KB	Output is correct
112	Correct	226 ms	15304 KB	Output is correct
113	Correct	237 ms	15508 KB	Output is correct
114	Correct	228 ms	15348 KB	Output is correct
115	Correct	231 ms	15732 KB	Output is correct
116	Correct	240 ms	15964 KB	Output is correct

답안 #970446

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