답안 #589905

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
589905	2022-07-05T11:37:53 Z	WongChun1234	The short shank; Redemption (BOI21_prison)	C++14	100 / 100	430 ms	229072 KB

prison

#include<bits/stdc++.h>
using namespace std;
const int N=2000050;
int n,d,t,a[N],par[N],diff[N],ans,pt,mx[N],mv[N];
bool del[N];
vector<int> stk,nde[N],ch[N];
int main(){
	cin.tie(0)->sync_with_stdio(0);
	cin>>n>>d>>t;
	ans=pt=n;
	for (int i=1;i<=n;i++){
		cin>>a[i];
		diff[i]+=diff[i-1];
		if (a[i]<=t) diff[i]++,diff[min(i+t-a[i]+1,N-2)]--;
		else if (diff[i]) par[i]=i;
		else ans--;
	}
	for (int i=1;i<=n;i++){
		while (stk.size()){
			if (a[stk.back()]<=t){
				if (stk.back()+t-a[stk.back()]<i) stk.pop_back();
				else break;
			}else if (a[i]>t&&diff[i]){
				par[stk.back()]=i;
				ch[i].push_back(stk.back());
				stk.pop_back();
			}else break;
		}
		stk.push_back(i);
	}
	//for (int i=1;i<=n;i++) cout<<par[i]<<"\n";
	for (int i=1;i<=n;i++){
		if (a[i]<=t||!diff[i]) continue;
		mx[i]=1;
		for (int j:ch[i]){
			if (j==i) continue;
			if (mx[j]+1>mx[mv[i]]) mx[i]=mx[j]+1,mv[i]=j;
		}
		nde[mx[i]].push_back(i);
	}
	//for (int i=1;i<=n;i++) cout<<mx[i]<<" "<<mv[i]<<"\n";
	while (pt){
		for (int j:nde[pt]){
			if (del[j]) continue;
			//cout<<j<<" "<<pt<<"!\n";
			if (!d) goto done;
			ans-=pt;
			d--;
			for (int k=j;k;k=mv[k]){
				del[k]=1;
			}
		}
		pt--;
	}
	done:;
	cout<<ans<<"\n";
}

Subtask #1

15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	46 ms	94300 KB	Output is correct
2	Correct	45 ms	94316 KB	Output is correct
3	Correct	45 ms	94304 KB	Output is correct
4	Correct	53 ms	94284 KB	Output is correct
5	Correct	44 ms	94220 KB	Output is correct
6	Correct	45 ms	94284 KB	Output is correct
7	Correct	55 ms	94208 KB	Output is correct
8	Correct	49 ms	94216 KB	Output is correct
9	Correct	45 ms	94284 KB	Output is correct
10	Correct	45 ms	94396 KB	Output is correct
11	Correct	49 ms	94280 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	48 ms	94160 KB	Output is correct
2	Correct	142 ms	121576 KB	Output is correct
3	Correct	118 ms	115724 KB	Output is correct
4	Correct	155 ms	116504 KB	Output is correct
5	Correct	120 ms	116120 KB	Output is correct
6	Correct	114 ms	113816 KB	Output is correct
7	Correct	138 ms	139712 KB	Output is correct
8	Correct	133 ms	115856 KB	Output is correct

Subtask #3

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	46 ms	94300 KB	Output is correct
2	Correct	45 ms	94316 KB	Output is correct
3	Correct	45 ms	94304 KB	Output is correct
4	Correct	53 ms	94284 KB	Output is correct
5	Correct	44 ms	94220 KB	Output is correct
6	Correct	45 ms	94284 KB	Output is correct
7	Correct	55 ms	94208 KB	Output is correct
8	Correct	49 ms	94216 KB	Output is correct
9	Correct	45 ms	94284 KB	Output is correct
10	Correct	45 ms	94396 KB	Output is correct
11	Correct	49 ms	94280 KB	Output is correct
12	Correct	45 ms	94240 KB	Output is correct
13	Correct	57 ms	94236 KB	Output is correct
14	Correct	55 ms	94312 KB	Output is correct
15	Correct	42 ms	94276 KB	Output is correct
16	Correct	47 ms	94284 KB	Output is correct
17	Correct	58 ms	94220 KB	Output is correct
18	Correct	45 ms	94272 KB	Output is correct
19	Correct	45 ms	94220 KB	Output is correct
20	Correct	43 ms	94272 KB	Output is correct
21	Correct	43 ms	94252 KB	Output is correct
22	Correct	43 ms	94232 KB	Output is correct
23	Correct	52 ms	94456 KB	Output is correct
24	Correct	46 ms	94496 KB	Output is correct
25	Correct	43 ms	94512 KB	Output is correct
26	Correct	43 ms	94544 KB	Output is correct
27	Correct	46 ms	94412 KB	Output is correct
28	Correct	58 ms	94536 KB	Output is correct
29	Correct	51 ms	94412 KB	Output is correct
30	Correct	60 ms	94376 KB	Output is correct
31	Correct	46 ms	94436 KB	Output is correct
32	Correct	47 ms	94296 KB	Output is correct
33	Correct	55 ms	94328 KB	Output is correct
34	Correct	47 ms	94472 KB	Output is correct
35	Correct	55 ms	94392 KB	Output is correct

Subtask #4

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	51 ms	94284 KB	Output is correct
2	Correct	56 ms	98460 KB	Output is correct
3	Correct	60 ms	99144 KB	Output is correct
4	Correct	61 ms	98732 KB	Output is correct
5	Correct	82 ms	99544 KB	Output is correct
6	Correct	61 ms	99688 KB	Output is correct
7	Correct	63 ms	97196 KB	Output is correct
8	Correct	113 ms	96880 KB	Output is correct
9	Correct	61 ms	101104 KB	Output is correct
10	Correct	57 ms	96612 KB	Output is correct

Subtask #5

25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	46 ms	94300 KB	Output is correct
2	Correct	45 ms	94316 KB	Output is correct
3	Correct	45 ms	94304 KB	Output is correct
4	Correct	53 ms	94284 KB	Output is correct
5	Correct	44 ms	94220 KB	Output is correct
6	Correct	45 ms	94284 KB	Output is correct
7	Correct	55 ms	94208 KB	Output is correct
8	Correct	49 ms	94216 KB	Output is correct
9	Correct	45 ms	94284 KB	Output is correct
10	Correct	45 ms	94396 KB	Output is correct
11	Correct	49 ms	94280 KB	Output is correct
12	Correct	45 ms	94240 KB	Output is correct
13	Correct	57 ms	94236 KB	Output is correct
14	Correct	55 ms	94312 KB	Output is correct
15	Correct	42 ms	94276 KB	Output is correct
16	Correct	47 ms	94284 KB	Output is correct
17	Correct	58 ms	94220 KB	Output is correct
18	Correct	45 ms	94272 KB	Output is correct
19	Correct	45 ms	94220 KB	Output is correct
20	Correct	43 ms	94272 KB	Output is correct
21	Correct	43 ms	94252 KB	Output is correct
22	Correct	43 ms	94232 KB	Output is correct
23	Correct	52 ms	94456 KB	Output is correct
24	Correct	46 ms	94496 KB	Output is correct
25	Correct	43 ms	94512 KB	Output is correct
26	Correct	43 ms	94544 KB	Output is correct
27	Correct	46 ms	94412 KB	Output is correct
28	Correct	58 ms	94536 KB	Output is correct
29	Correct	51 ms	94412 KB	Output is correct
30	Correct	60 ms	94376 KB	Output is correct
31	Correct	46 ms	94436 KB	Output is correct
32	Correct	47 ms	94296 KB	Output is correct
33	Correct	55 ms	94328 KB	Output is correct
34	Correct	47 ms	94472 KB	Output is correct
35	Correct	55 ms	94392 KB	Output is correct
36	Correct	51 ms	94284 KB	Output is correct
37	Correct	56 ms	98460 KB	Output is correct
38	Correct	60 ms	99144 KB	Output is correct
39	Correct	61 ms	98732 KB	Output is correct
40	Correct	82 ms	99544 KB	Output is correct
41	Correct	61 ms	99688 KB	Output is correct
42	Correct	63 ms	97196 KB	Output is correct
43	Correct	113 ms	96880 KB	Output is correct
44	Correct	61 ms	101104 KB	Output is correct
45	Correct	57 ms	96612 KB	Output is correct
46	Correct	52 ms	94160 KB	Output is correct
47	Correct	46 ms	94312 KB	Output is correct
48	Correct	52 ms	94292 KB	Output is correct
49	Correct	47 ms	94236 KB	Output is correct
50	Correct	47 ms	94312 KB	Output is correct
51	Correct	50 ms	94408 KB	Output is correct
52	Correct	46 ms	94240 KB	Output is correct
53	Correct	47 ms	94312 KB	Output is correct
54	Correct	45 ms	94244 KB	Output is correct
55	Correct	46 ms	94304 KB	Output is correct
56	Correct	50 ms	94284 KB	Output is correct
57	Correct	50 ms	94524 KB	Output is correct
58	Correct	51 ms	94508 KB	Output is correct
59	Correct	60 ms	94512 KB	Output is correct
60	Correct	56 ms	94476 KB	Output is correct
61	Correct	50 ms	94472 KB	Output is correct
62	Correct	48 ms	94508 KB	Output is correct
63	Correct	55 ms	94496 KB	Output is correct
64	Correct	44 ms	94412 KB	Output is correct
65	Correct	49 ms	94428 KB	Output is correct
66	Correct	54 ms	94384 KB	Output is correct
67	Correct	53 ms	94392 KB	Output is correct
68	Correct	50 ms	94476 KB	Output is correct
69	Correct	46 ms	94460 KB	Output is correct
70	Correct	49 ms	94272 KB	Output is correct
71	Correct	64 ms	98484 KB	Output is correct
72	Correct	87 ms	98984 KB	Output is correct
73	Correct	62 ms	98752 KB	Output is correct
74	Correct	63 ms	99544 KB	Output is correct
75	Correct	64 ms	99696 KB	Output is correct
76	Correct	68 ms	97184 KB	Output is correct
77	Correct	68 ms	96984 KB	Output is correct
78	Correct	58 ms	101008 KB	Output is correct
79	Correct	56 ms	96640 KB	Output is correct
80	Correct	64 ms	99008 KB	Output is correct
81	Correct	71 ms	98516 KB	Output is correct
82	Correct	67 ms	99084 KB	Output is correct
83	Correct	73 ms	98120 KB	Output is correct
84	Correct	58 ms	97520 KB	Output is correct
85	Correct	70 ms	99952 KB	Output is correct
86	Correct	57 ms	97960 KB	Output is correct
87	Correct	53 ms	96952 KB	Output is correct
88	Correct	87 ms	100064 KB	Output is correct
89	Correct	94 ms	100688 KB	Output is correct
90	Correct	58 ms	99448 KB	Output is correct

Subtask #6

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	46 ms	94300 KB	Output is correct
2	Correct	45 ms	94316 KB	Output is correct
3	Correct	45 ms	94304 KB	Output is correct
4	Correct	53 ms	94284 KB	Output is correct
5	Correct	44 ms	94220 KB	Output is correct
6	Correct	45 ms	94284 KB	Output is correct
7	Correct	55 ms	94208 KB	Output is correct
8	Correct	49 ms	94216 KB	Output is correct
9	Correct	45 ms	94284 KB	Output is correct
10	Correct	45 ms	94396 KB	Output is correct
11	Correct	49 ms	94280 KB	Output is correct
12	Correct	48 ms	94160 KB	Output is correct
13	Correct	142 ms	121576 KB	Output is correct
14	Correct	118 ms	115724 KB	Output is correct
15	Correct	155 ms	116504 KB	Output is correct
16	Correct	120 ms	116120 KB	Output is correct
17	Correct	114 ms	113816 KB	Output is correct
18	Correct	138 ms	139712 KB	Output is correct
19	Correct	133 ms	115856 KB	Output is correct
20	Correct	45 ms	94240 KB	Output is correct
21	Correct	57 ms	94236 KB	Output is correct
22	Correct	55 ms	94312 KB	Output is correct
23	Correct	42 ms	94276 KB	Output is correct
24	Correct	47 ms	94284 KB	Output is correct
25	Correct	58 ms	94220 KB	Output is correct
26	Correct	45 ms	94272 KB	Output is correct
27	Correct	45 ms	94220 KB	Output is correct
28	Correct	43 ms	94272 KB	Output is correct
29	Correct	43 ms	94252 KB	Output is correct
30	Correct	43 ms	94232 KB	Output is correct
31	Correct	52 ms	94456 KB	Output is correct
32	Correct	46 ms	94496 KB	Output is correct
33	Correct	43 ms	94512 KB	Output is correct
34	Correct	43 ms	94544 KB	Output is correct
35	Correct	46 ms	94412 KB	Output is correct
36	Correct	58 ms	94536 KB	Output is correct
37	Correct	51 ms	94412 KB	Output is correct
38	Correct	60 ms	94376 KB	Output is correct
39	Correct	46 ms	94436 KB	Output is correct
40	Correct	47 ms	94296 KB	Output is correct
41	Correct	55 ms	94328 KB	Output is correct
42	Correct	47 ms	94472 KB	Output is correct
43	Correct	55 ms	94392 KB	Output is correct
44	Correct	51 ms	94284 KB	Output is correct
45	Correct	56 ms	98460 KB	Output is correct
46	Correct	60 ms	99144 KB	Output is correct
47	Correct	61 ms	98732 KB	Output is correct
48	Correct	82 ms	99544 KB	Output is correct
49	Correct	61 ms	99688 KB	Output is correct
50	Correct	63 ms	97196 KB	Output is correct
51	Correct	113 ms	96880 KB	Output is correct
52	Correct	61 ms	101104 KB	Output is correct
53	Correct	57 ms	96612 KB	Output is correct
54	Correct	52 ms	94160 KB	Output is correct
55	Correct	46 ms	94312 KB	Output is correct
56	Correct	52 ms	94292 KB	Output is correct
57	Correct	47 ms	94236 KB	Output is correct
58	Correct	47 ms	94312 KB	Output is correct
59	Correct	50 ms	94408 KB	Output is correct
60	Correct	46 ms	94240 KB	Output is correct
61	Correct	47 ms	94312 KB	Output is correct
62	Correct	45 ms	94244 KB	Output is correct
63	Correct	46 ms	94304 KB	Output is correct
64	Correct	50 ms	94284 KB	Output is correct
65	Correct	50 ms	94524 KB	Output is correct
66	Correct	51 ms	94508 KB	Output is correct
67	Correct	60 ms	94512 KB	Output is correct
68	Correct	56 ms	94476 KB	Output is correct
69	Correct	50 ms	94472 KB	Output is correct
70	Correct	48 ms	94508 KB	Output is correct
71	Correct	55 ms	94496 KB	Output is correct
72	Correct	44 ms	94412 KB	Output is correct
73	Correct	49 ms	94428 KB	Output is correct
74	Correct	54 ms	94384 KB	Output is correct
75	Correct	53 ms	94392 KB	Output is correct
76	Correct	50 ms	94476 KB	Output is correct
77	Correct	46 ms	94460 KB	Output is correct
78	Correct	49 ms	94272 KB	Output is correct
79	Correct	64 ms	98484 KB	Output is correct
80	Correct	87 ms	98984 KB	Output is correct
81	Correct	62 ms	98752 KB	Output is correct
82	Correct	63 ms	99544 KB	Output is correct
83	Correct	64 ms	99696 KB	Output is correct
84	Correct	68 ms	97184 KB	Output is correct
85	Correct	68 ms	96984 KB	Output is correct
86	Correct	58 ms	101008 KB	Output is correct
87	Correct	56 ms	96640 KB	Output is correct
88	Correct	64 ms	99008 KB	Output is correct
89	Correct	71 ms	98516 KB	Output is correct
90	Correct	67 ms	99084 KB	Output is correct
91	Correct	73 ms	98120 KB	Output is correct
92	Correct	58 ms	97520 KB	Output is correct
93	Correct	70 ms	99952 KB	Output is correct
94	Correct	57 ms	97960 KB	Output is correct
95	Correct	53 ms	96952 KB	Output is correct
96	Correct	87 ms	100064 KB	Output is correct
97	Correct	94 ms	100688 KB	Output is correct
98	Correct	58 ms	99448 KB	Output is correct
99	Correct	78 ms	94208 KB	Output is correct
100	Correct	51 ms	94216 KB	Output is correct
101	Correct	49 ms	94244 KB	Output is correct
102	Correct	79 ms	94316 KB	Output is correct
103	Correct	53 ms	94236 KB	Output is correct
104	Correct	49 ms	94344 KB	Output is correct
105	Correct	47 ms	94204 KB	Output is correct
106	Correct	48 ms	94280 KB	Output is correct
107	Correct	48 ms	94212 KB	Output is correct
108	Correct	47 ms	94248 KB	Output is correct
109	Correct	51 ms	94192 KB	Output is correct
110	Correct	49 ms	94236 KB	Output is correct
111	Correct	146 ms	121548 KB	Output is correct
112	Correct	129 ms	115584 KB	Output is correct
113	Correct	141 ms	116504 KB	Output is correct
114	Correct	117 ms	116116 KB	Output is correct
115	Correct	136 ms	113852 KB	Output is correct
116	Correct	182 ms	139704 KB	Output is correct
117	Correct	128 ms	115880 KB	Output is correct
118	Correct	60 ms	94432 KB	Output is correct
119	Correct	49 ms	94540 KB	Output is correct
120	Correct	62 ms	94532 KB	Output is correct
121	Correct	61 ms	94536 KB	Output is correct
122	Correct	51 ms	94532 KB	Output is correct
123	Correct	50 ms	94420 KB	Output is correct
124	Correct	49 ms	94452 KB	Output is correct
125	Correct	47 ms	94384 KB	Output is correct
126	Correct	52 ms	94408 KB	Output is correct
127	Correct	48 ms	94412 KB	Output is correct
128	Correct	55 ms	94416 KB	Output is correct
129	Correct	48 ms	94380 KB	Output is correct
130	Correct	46 ms	94440 KB	Output is correct
131	Correct	53 ms	94196 KB	Output is correct
132	Correct	63 ms	98512 KB	Output is correct
133	Correct	75 ms	98916 KB	Output is correct
134	Correct	63 ms	98752 KB	Output is correct
135	Correct	72 ms	99572 KB	Output is correct
136	Correct	67 ms	99600 KB	Output is correct
137	Correct	66 ms	97152 KB	Output is correct
138	Correct	66 ms	96932 KB	Output is correct
139	Correct	60 ms	101028 KB	Output is correct
140	Correct	54 ms	96568 KB	Output is correct
141	Correct	65 ms	99036 KB	Output is correct
142	Correct	67 ms	98432 KB	Output is correct
143	Correct	72 ms	98992 KB	Output is correct
144	Correct	64 ms	98156 KB	Output is correct
145	Correct	55 ms	97412 KB	Output is correct
146	Correct	68 ms	99920 KB	Output is correct
147	Correct	61 ms	97936 KB	Output is correct
148	Correct	71 ms	96976 KB	Output is correct
149	Correct	82 ms	100056 KB	Output is correct
150	Correct	69 ms	100780 KB	Output is correct
151	Correct	59 ms	99404 KB	Output is correct
152	Correct	422 ms	162680 KB	Output is correct
153	Correct	372 ms	167472 KB	Output is correct
154	Correct	368 ms	158908 KB	Output is correct
155	Correct	384 ms	188588 KB	Output is correct
156	Correct	349 ms	181632 KB	Output is correct
157	Correct	293 ms	144932 KB	Output is correct
158	Correct	338 ms	166888 KB	Output is correct
159	Correct	430 ms	223184 KB	Output is correct
160	Correct	404 ms	229072 KB	Output is correct
161	Correct	303 ms	157284 KB	Output is correct
162	Correct	295 ms	159892 KB	Output is correct