답안 #1080005

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1080005	2024-08-29T06:00:43 Z	qwerasdfzxcl	Joker (BOI20_joker)	C++17	100 / 100	624 ms	22400 KB

Joker

#include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;
 
struct DSU{
	int path[400400], rank[400400];
	vector<array<int, 3>> st;
 
	void init(int n){
		st.clear();
		for (int i=1;i<=n;i++) path[i] = i, rank[i] = 0;
	}
	int find(int s){
		if (s==path[s]) return s;
		return find(path[s]);
	}
	void merge(int x, int y){
		x = find(x), y = find(y);
		if (x==y) {st.push_back({-1, -1, -1}); return;}
		if (rank[x] > rank[y]) swap(x, y);
		
		st.push_back({x, y, rank[y]});
		path[x] = y;
		if (rank[x]==rank[y]) rank[y]++;
	}
	void pop(int cnt){
		for (int i=1;i<=cnt;i++){
			auto [x, y, r] = st.back(); st.pop_back();
			if (x==-1) continue;
			path[x] = x;
			rank[y] = r;
		}
	}
}dsu;
 
int a[400400], b[400400], ans[400400], sz;
 
void rollback(int t){
	dsu.pop((sz-t) * 2);
	sz = t;
}
 
int push(int i){
	dsu.merge(a[i]*2, b[i]*2+1);
	dsu.merge(a[i]*2+1, b[i]*2);
	sz++;
	if (dsu.find(a[i]*2) == dsu.find(a[i]*2+1)) return 0;
	return 1;
}
 
void dnc(int l, int r, int s, int e){
	if (l > r) return;
	
	int m = (l+r)>>1;
	int t1 = sz;
 
	for (int i=min(r, s-1);i>=m;i--) push(i);
	int t2 = sz;
 
	for (int i=max(s, m);i<=e;i++){
		if (!push(i)) break;
		ans[m] = i;
	}
 
	rollback(t2);
	dnc(l, m-1, s, ans[m]);
 
	rollback(t1);
	for (int i=max(r+1, s);i<=ans[m]-1;i++) push(i);
	dnc(m+1, r, ans[m], e);
 
	rollback(t1);
 
}
 
int main(){
	int n, m, q;
	scanf("%d %d %d", &n, &m, &q);
	for (int i=1;i<=m;i++) scanf("%d %d", a+i, b+i);
	for (int i=1;i<=m;i++) a[i+m] = a[i], b[i+m] = b[i];
 
	dsu.init(n*2+3);
	dnc(1, m*2, 1, m*2);
	
	while(q--){
		int l, r;
		scanf("%d %d", &l, &r);
 
		int ll = r+1, rr = l-1 + m;
 
		if (ans[ll] >= rr) printf("NO\n");
		else printf("YES\n");
	}
}

Compilation message

Joker.cpp: In function 'int main()':
Joker.cpp:79:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |  scanf("%d %d %d", &n, &m, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Joker.cpp:80:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |  for (int i=1;i<=m;i++) scanf("%d %d", a+i, b+i);
      |                         ~~~~~^~~~~~~~~~~~~~~~~~~
Joker.cpp:88:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   88 |   scanf("%d %d", &l, &r);
      |   ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	2 ms	604 KB	Output is correct
31	Correct	3 ms	604 KB	Output is correct
32	Correct	3 ms	600 KB	Output is correct
33	Correct	2 ms	348 KB	Output is correct
34	Correct	4 ms	604 KB	Output is correct
35	Correct	3 ms	604 KB	Output is correct
36	Correct	2 ms	456 KB	Output is correct
37	Correct	3 ms	604 KB	Output is correct
38	Correct	3 ms	604 KB	Output is correct
39	Correct	3 ms	600 KB	Output is correct
40	Correct	2 ms	608 KB	Output is correct
41	Correct	2 ms	604 KB	Output is correct
42	Correct	2 ms	604 KB	Output is correct
43	Correct	3 ms	604 KB	Output is correct
44	Correct	3 ms	604 KB	Output is correct
45	Correct	3 ms	604 KB	Output is correct
46	Correct	3 ms	604 KB	Output is correct
47	Correct	3 ms	604 KB	Output is correct
48	Correct	3 ms	604 KB	Output is correct
49	Correct	3 ms	456 KB	Output is correct
50	Correct	3 ms	508 KB	Output is correct
51	Correct	3 ms	596 KB	Output is correct
52	Correct	3 ms	604 KB	Output is correct
53	Correct	3 ms	616 KB	Output is correct
54	Correct	4 ms	600 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	362 ms	13764 KB	Output is correct
4	Correct	473 ms	21940 KB	Output is correct
5	Correct	400 ms	17260 KB	Output is correct
6	Correct	350 ms	13780 KB	Output is correct
7	Correct	357 ms	13760 KB	Output is correct
8	Correct	582 ms	12596 KB	Output is correct
9	Correct	624 ms	13240 KB	Output is correct
10	Correct	567 ms	15032 KB	Output is correct
11	Correct	427 ms	13728 KB	Output is correct
12	Correct	427 ms	15288 KB	Output is correct
13	Correct	574 ms	12356 KB	Output is correct
14	Correct	582 ms	13028 KB	Output is correct
15	Correct	538 ms	14516 KB	Output is correct
16	Correct	558 ms	15804 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	362 ms	13764 KB	Output is correct
30	Correct	473 ms	21940 KB	Output is correct
31	Correct	400 ms	17260 KB	Output is correct
32	Correct	350 ms	13780 KB	Output is correct
33	Correct	357 ms	13760 KB	Output is correct
34	Correct	582 ms	12596 KB	Output is correct
35	Correct	624 ms	13240 KB	Output is correct
36	Correct	567 ms	15032 KB	Output is correct
37	Correct	427 ms	13728 KB	Output is correct
38	Correct	427 ms	15288 KB	Output is correct
39	Correct	574 ms	12356 KB	Output is correct
40	Correct	582 ms	13028 KB	Output is correct
41	Correct	538 ms	14516 KB	Output is correct
42	Correct	558 ms	15804 KB	Output is correct
43	Correct	379 ms	14036 KB	Output is correct
44	Correct	480 ms	22400 KB	Output is correct
45	Correct	534 ms	18052 KB	Output is correct
46	Correct	403 ms	14008 KB	Output is correct
47	Correct	410 ms	14044 KB	Output is correct
48	Correct	598 ms	13772 KB	Output is correct
49	Correct	607 ms	15572 KB	Output is correct
50	Correct	454 ms	13608 KB	Output is correct
51	Correct	441 ms	14676 KB	Output is correct
52	Correct	476 ms	16036 KB	Output is correct
53	Correct	555 ms	12476 KB	Output is correct
54	Correct	599 ms	13748 KB	Output is correct
55	Correct	524 ms	14776 KB	Output is correct
56	Correct	580 ms	15828 KB	Output is correct

Subtask #5
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	2 ms	604 KB	Output is correct
31	Correct	3 ms	604 KB	Output is correct
32	Correct	3 ms	600 KB	Output is correct
33	Correct	2 ms	348 KB	Output is correct
34	Correct	4 ms	604 KB	Output is correct
35	Correct	3 ms	604 KB	Output is correct
36	Correct	2 ms	456 KB	Output is correct
37	Correct	3 ms	604 KB	Output is correct
38	Correct	3 ms	604 KB	Output is correct
39	Correct	3 ms	600 KB	Output is correct
40	Correct	2 ms	608 KB	Output is correct
41	Correct	2 ms	604 KB	Output is correct
42	Correct	2 ms	604 KB	Output is correct
43	Correct	3 ms	604 KB	Output is correct
44	Correct	3 ms	604 KB	Output is correct
45	Correct	3 ms	604 KB	Output is correct
46	Correct	3 ms	604 KB	Output is correct
47	Correct	3 ms	604 KB	Output is correct
48	Correct	3 ms	604 KB	Output is correct
49	Correct	3 ms	456 KB	Output is correct
50	Correct	3 ms	508 KB	Output is correct
51	Correct	3 ms	596 KB	Output is correct
52	Correct	3 ms	604 KB	Output is correct
53	Correct	3 ms	616 KB	Output is correct
54	Correct	4 ms	600 KB	Output is correct
55	Correct	333 ms	11492 KB	Output is correct
56	Correct	447 ms	21644 KB	Output is correct
57	Correct	449 ms	15044 KB	Output is correct
58	Correct	321 ms	11452 KB	Output is correct
59	Correct	530 ms	11444 KB	Output is correct
60	Correct	510 ms	12476 KB	Output is correct
61	Correct	385 ms	11452 KB	Output is correct
62	Correct	421 ms	12988 KB	Output is correct
63	Correct	524 ms	10500 KB	Output is correct
64	Correct	492 ms	11964 KB	Output is correct
65	Correct	482 ms	12776 KB	Output is correct

Subtask #6
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	2 ms	604 KB	Output is correct
31	Correct	3 ms	604 KB	Output is correct
32	Correct	3 ms	600 KB	Output is correct
33	Correct	2 ms	348 KB	Output is correct
34	Correct	4 ms	604 KB	Output is correct
35	Correct	3 ms	604 KB	Output is correct
36	Correct	2 ms	456 KB	Output is correct
37	Correct	3 ms	604 KB	Output is correct
38	Correct	3 ms	604 KB	Output is correct
39	Correct	3 ms	600 KB	Output is correct
40	Correct	2 ms	608 KB	Output is correct
41	Correct	2 ms	604 KB	Output is correct
42	Correct	2 ms	604 KB	Output is correct
43	Correct	3 ms	604 KB	Output is correct
44	Correct	3 ms	604 KB	Output is correct
45	Correct	3 ms	604 KB	Output is correct
46	Correct	3 ms	604 KB	Output is correct
47	Correct	3 ms	604 KB	Output is correct
48	Correct	3 ms	604 KB	Output is correct
49	Correct	3 ms	456 KB	Output is correct
50	Correct	3 ms	508 KB	Output is correct
51	Correct	3 ms	596 KB	Output is correct
52	Correct	3 ms	604 KB	Output is correct
53	Correct	3 ms	616 KB	Output is correct
54	Correct	4 ms	600 KB	Output is correct
55	Correct	362 ms	13764 KB	Output is correct
56	Correct	473 ms	21940 KB	Output is correct
57	Correct	400 ms	17260 KB	Output is correct
58	Correct	350 ms	13780 KB	Output is correct
59	Correct	357 ms	13760 KB	Output is correct
60	Correct	582 ms	12596 KB	Output is correct
61	Correct	624 ms	13240 KB	Output is correct
62	Correct	567 ms	15032 KB	Output is correct
63	Correct	427 ms	13728 KB	Output is correct
64	Correct	427 ms	15288 KB	Output is correct
65	Correct	574 ms	12356 KB	Output is correct
66	Correct	582 ms	13028 KB	Output is correct
67	Correct	538 ms	14516 KB	Output is correct
68	Correct	558 ms	15804 KB	Output is correct
69	Correct	379 ms	14036 KB	Output is correct
70	Correct	480 ms	22400 KB	Output is correct
71	Correct	534 ms	18052 KB	Output is correct
72	Correct	403 ms	14008 KB	Output is correct
73	Correct	410 ms	14044 KB	Output is correct
74	Correct	598 ms	13772 KB	Output is correct
75	Correct	607 ms	15572 KB	Output is correct
76	Correct	454 ms	13608 KB	Output is correct
77	Correct	441 ms	14676 KB	Output is correct
78	Correct	476 ms	16036 KB	Output is correct
79	Correct	555 ms	12476 KB	Output is correct
80	Correct	599 ms	13748 KB	Output is correct
81	Correct	524 ms	14776 KB	Output is correct
82	Correct	580 ms	15828 KB	Output is correct
83	Correct	333 ms	11492 KB	Output is correct
84	Correct	447 ms	21644 KB	Output is correct
85	Correct	449 ms	15044 KB	Output is correct
86	Correct	321 ms	11452 KB	Output is correct
87	Correct	530 ms	11444 KB	Output is correct
88	Correct	510 ms	12476 KB	Output is correct
89	Correct	385 ms	11452 KB	Output is correct
90	Correct	421 ms	12988 KB	Output is correct
91	Correct	524 ms	10500 KB	Output is correct
92	Correct	492 ms	11964 KB	Output is correct
93	Correct	482 ms	12776 KB	Output is correct
94	Correct	374 ms	14800 KB	Output is correct
95	Correct	474 ms	18644 KB	Output is correct
96	Correct	449 ms	17988 KB	Output is correct
97	Correct	419 ms	14776 KB	Output is correct
98	Correct	373 ms	14780 KB	Output is correct
99	Correct	513 ms	14012 KB	Output is correct
100	Correct	517 ms	16512 KB	Output is correct
101	Correct	387 ms	14420 KB	Output is correct
102	Correct	462 ms	15504 KB	Output is correct
103	Correct	483 ms	16828 KB	Output is correct
104	Correct	592 ms	13788 KB	Output is correct
105	Correct	566 ms	15036 KB	Output is correct
106	Correct	542 ms	16060 KB	Output is correct
107	Correct	377 ms	18864 KB	Output is correct
108	Correct	374 ms	14548 KB	Output is correct
109	Correct	366 ms	14380 KB	Output is correct
110	Correct	364 ms	14520 KB	Output is correct
111	Correct	366 ms	14580 KB	Output is correct
112	Correct	368 ms	14528 KB	Output is correct
113	Correct	383 ms	14448 KB	Output is correct
114	Correct	386 ms	14604 KB	Output is correct
115	Correct	372 ms	14524 KB	Output is correct
116	Correct	370 ms	14780 KB	Output is correct

답안 #1080005

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