Submission #839206

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
839206	2023-08-29T04:59:57 Z	MetalPower	The short shank; Redemption (BOI21_prison)	C++14	100 / 100	351 ms	283328 KB

prison

#include <bits/stdc++.h>
using namespace std;

#define pii pair<int, int>
#define fi first
#define se second

const int MX = 2e6 + 10;

int N, D, T, arr[MX], st[MX], nxt[MX], f[MX];
vector<int> adj[MX], root;

int dep[MX], par[MX], max_dep[MX], pos_dep[MX];
bool rem[MX];

void dfs(int u){
	if(dep[u] > max_dep[u]){
		max_dep[u] = dep[u];
		pos_dep[u] = u;
	}
	for(int nxt : adj[u]){
		par[nxt] = u;
		dep[nxt] = dep[u] + 1;
		dfs(nxt);
		if(max_dep[nxt] > max_dep[u]){
			max_dep[u] = max_dep[nxt];
			pos_dep[u] = pos_dep[nxt];
		}
	}
}

priority_queue<pii> pq;

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

	cin >> N >> D >> T;
	for(int i = 0; i < N; i++) cin >> arr[i];

	memset(f, -1, sizeof f);
	memset(nxt, -1, sizeof nxt);

	vector<pii> stk;
	vector<int> pos;

	int sum = 0;

	for(int i = 0; i < N; i++){
		if(arr[i] <= T){
			st[i] = 0; sum++;
			stk.push_back({i, arr[i]});
		}else if(arr[i] > T){
			for(; !stk.empty(); ){
				if(i - stk.back().fi <= T - stk.back().se){
					f[i] = stk.back().fi;
					break;
				}
				stk.pop_back();
			}
			if(f[i] == -1) st[i] = 0;
			else{
				sum++;
				for(; !pos.empty() && pos.back() > f[i]; ){
					nxt[pos.back()] = i, pos.pop_back();
				}
				pos.push_back(i);
				st[i] = 1;
			}
		}
	}

	for(int i = 0; i < N; i++){
		if(st[i] && nxt[i] != -1){
			adj[nxt[i]].push_back(i);
		}else if(st[i] && nxt[i] == -1){
			root.push_back(i);
		}
	}

	for(int nd : root){
		par[nd] = -1;
		dep[nd] = 1;
		dfs(nd);
		pq.push({max_dep[nd], nd});
	}

	int tot = 0;
	for(int j = 0; j < D; j++){
		if(pq.empty()) break;

		int nd = pq.top().se, lw = pos_dep[nd];
		tot += pq.top().fi; pq.pop();

		for(; lw != -1 && !rem[lw]; lw = par[lw]){
			rem[lw] = true;
			for(int nxt : adj[lw]){
				if(rem[nxt]) continue;
				pq.push({max_dep[nxt] - dep[nxt] + 1, nxt});
			}
		}
	}

	cout << sum - tot << '\n';
}

Subtask #1
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	62932 KB	Output is correct
2	Correct	26 ms	62932 KB	Output is correct
3	Correct	27 ms	62932 KB	Output is correct
4	Correct	27 ms	62932 KB	Output is correct
5	Correct	27 ms	62932 KB	Output is correct
6	Correct	30 ms	63004 KB	Output is correct
7	Correct	27 ms	62932 KB	Output is correct
8	Correct	28 ms	62932 KB	Output is correct
9	Correct	26 ms	63008 KB	Output is correct
10	Correct	26 ms	62912 KB	Output is correct
11	Correct	31 ms	62968 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	62924 KB	Output is correct
2	Correct	86 ms	88448 KB	Output is correct
3	Correct	88 ms	86836 KB	Output is correct
4	Correct	83 ms	89536 KB	Output is correct
5	Correct	82 ms	84992 KB	Output is correct
6	Correct	82 ms	85580 KB	Output is correct
7	Correct	107 ms	133708 KB	Output is correct
8	Correct	85 ms	88384 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	62932 KB	Output is correct
2	Correct	26 ms	62932 KB	Output is correct
3	Correct	27 ms	62932 KB	Output is correct
4	Correct	27 ms	62932 KB	Output is correct
5	Correct	27 ms	62932 KB	Output is correct
6	Correct	30 ms	63004 KB	Output is correct
7	Correct	27 ms	62932 KB	Output is correct
8	Correct	28 ms	62932 KB	Output is correct
9	Correct	26 ms	63008 KB	Output is correct
10	Correct	26 ms	62912 KB	Output is correct
11	Correct	31 ms	62968 KB	Output is correct
12	Correct	26 ms	62932 KB	Output is correct
13	Correct	27 ms	62932 KB	Output is correct
14	Correct	28 ms	62932 KB	Output is correct
15	Correct	27 ms	63028 KB	Output is correct
16	Correct	27 ms	62932 KB	Output is correct
17	Correct	27 ms	62932 KB	Output is correct
18	Correct	27 ms	62992 KB	Output is correct
19	Correct	28 ms	62924 KB	Output is correct
20	Correct	28 ms	62940 KB	Output is correct
21	Correct	27 ms	62932 KB	Output is correct
22	Correct	27 ms	62932 KB	Output is correct
23	Correct	28 ms	63188 KB	Output is correct
24	Correct	28 ms	63188 KB	Output is correct
25	Correct	27 ms	63184 KB	Output is correct
26	Correct	27 ms	63188 KB	Output is correct
27	Correct	28 ms	63188 KB	Output is correct
28	Correct	27 ms	63188 KB	Output is correct
29	Correct	28 ms	63176 KB	Output is correct
30	Correct	28 ms	63060 KB	Output is correct
31	Correct	26 ms	63188 KB	Output is correct
32	Correct	27 ms	63060 KB	Output is correct
33	Correct	27 ms	63048 KB	Output is correct
34	Correct	27 ms	63108 KB	Output is correct
35	Correct	28 ms	63188 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	62916 KB	Output is correct
2	Correct	36 ms	67080 KB	Output is correct
3	Correct	37 ms	67024 KB	Output is correct
4	Correct	39 ms	69588 KB	Output is correct
5	Correct	39 ms	70808 KB	Output is correct
6	Correct	39 ms	70992 KB	Output is correct
7	Correct	35 ms	66468 KB	Output is correct
8	Correct	35 ms	66124 KB	Output is correct
9	Correct	37 ms	73428 KB	Output is correct
10	Correct	34 ms	66120 KB	Output is correct

Subtask #5
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	62932 KB	Output is correct
2	Correct	26 ms	62932 KB	Output is correct
3	Correct	27 ms	62932 KB	Output is correct
4	Correct	27 ms	62932 KB	Output is correct
5	Correct	27 ms	62932 KB	Output is correct
6	Correct	30 ms	63004 KB	Output is correct
7	Correct	27 ms	62932 KB	Output is correct
8	Correct	28 ms	62932 KB	Output is correct
9	Correct	26 ms	63008 KB	Output is correct
10	Correct	26 ms	62912 KB	Output is correct
11	Correct	31 ms	62968 KB	Output is correct
12	Correct	26 ms	62932 KB	Output is correct
13	Correct	27 ms	62932 KB	Output is correct
14	Correct	28 ms	62932 KB	Output is correct
15	Correct	27 ms	63028 KB	Output is correct
16	Correct	27 ms	62932 KB	Output is correct
17	Correct	27 ms	62932 KB	Output is correct
18	Correct	27 ms	62992 KB	Output is correct
19	Correct	28 ms	62924 KB	Output is correct
20	Correct	28 ms	62940 KB	Output is correct
21	Correct	27 ms	62932 KB	Output is correct
22	Correct	27 ms	62932 KB	Output is correct
23	Correct	28 ms	63188 KB	Output is correct
24	Correct	28 ms	63188 KB	Output is correct
25	Correct	27 ms	63184 KB	Output is correct
26	Correct	27 ms	63188 KB	Output is correct
27	Correct	28 ms	63188 KB	Output is correct
28	Correct	27 ms	63188 KB	Output is correct
29	Correct	28 ms	63176 KB	Output is correct
30	Correct	28 ms	63060 KB	Output is correct
31	Correct	26 ms	63188 KB	Output is correct
32	Correct	27 ms	63060 KB	Output is correct
33	Correct	27 ms	63048 KB	Output is correct
34	Correct	27 ms	63108 KB	Output is correct
35	Correct	28 ms	63188 KB	Output is correct
36	Correct	28 ms	62916 KB	Output is correct
37	Correct	36 ms	67080 KB	Output is correct
38	Correct	37 ms	67024 KB	Output is correct
39	Correct	39 ms	69588 KB	Output is correct
40	Correct	39 ms	70808 KB	Output is correct
41	Correct	39 ms	70992 KB	Output is correct
42	Correct	35 ms	66468 KB	Output is correct
43	Correct	35 ms	66124 KB	Output is correct
44	Correct	37 ms	73428 KB	Output is correct
45	Correct	34 ms	66120 KB	Output is correct
46	Correct	29 ms	62932 KB	Output is correct
47	Correct	28 ms	62920 KB	Output is correct
48	Correct	28 ms	62932 KB	Output is correct
49	Correct	30 ms	62932 KB	Output is correct
50	Correct	27 ms	62932 KB	Output is correct
51	Correct	28 ms	62932 KB	Output is correct
52	Correct	27 ms	62896 KB	Output is correct
53	Correct	28 ms	62932 KB	Output is correct
54	Correct	28 ms	62932 KB	Output is correct
55	Correct	27 ms	63056 KB	Output is correct
56	Correct	27 ms	62932 KB	Output is correct
57	Correct	28 ms	63180 KB	Output is correct
58	Correct	28 ms	63180 KB	Output is correct
59	Correct	28 ms	63188 KB	Output is correct
60	Correct	27 ms	63188 KB	Output is correct
61	Correct	32 ms	63180 KB	Output is correct
62	Correct	27 ms	63352 KB	Output is correct
63	Correct	28 ms	63188 KB	Output is correct
64	Correct	28 ms	63060 KB	Output is correct
65	Correct	28 ms	63188 KB	Output is correct
66	Correct	27 ms	63136 KB	Output is correct
67	Correct	28 ms	63052 KB	Output is correct
68	Correct	28 ms	63180 KB	Output is correct
69	Correct	28 ms	63188 KB	Output is correct
70	Correct	28 ms	62932 KB	Output is correct
71	Correct	39 ms	67160 KB	Output is correct
72	Correct	37 ms	67024 KB	Output is correct
73	Correct	37 ms	69452 KB	Output is correct
74	Correct	39 ms	70884 KB	Output is correct
75	Correct	42 ms	71120 KB	Output is correct
76	Correct	35 ms	66508 KB	Output is correct
77	Correct	34 ms	66068 KB	Output is correct
78	Correct	39 ms	73428 KB	Output is correct
79	Correct	41 ms	66224 KB	Output is correct
80	Correct	36 ms	67016 KB	Output is correct
81	Correct	38 ms	67152 KB	Output is correct
82	Correct	38 ms	66988 KB	Output is correct
83	Correct	36 ms	68052 KB	Output is correct
84	Correct	34 ms	66388 KB	Output is correct
85	Correct	37 ms	71244 KB	Output is correct
86	Correct	35 ms	67572 KB	Output is correct
87	Correct	35 ms	66004 KB	Output is correct
88	Correct	36 ms	71892 KB	Output is correct
89	Correct	37 ms	73036 KB	Output is correct
90	Correct	37 ms	70868 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	62932 KB	Output is correct
2	Correct	26 ms	62932 KB	Output is correct
3	Correct	27 ms	62932 KB	Output is correct
4	Correct	27 ms	62932 KB	Output is correct
5	Correct	27 ms	62932 KB	Output is correct
6	Correct	30 ms	63004 KB	Output is correct
7	Correct	27 ms	62932 KB	Output is correct
8	Correct	28 ms	62932 KB	Output is correct
9	Correct	26 ms	63008 KB	Output is correct
10	Correct	26 ms	62912 KB	Output is correct
11	Correct	31 ms	62968 KB	Output is correct
12	Correct	27 ms	62924 KB	Output is correct
13	Correct	86 ms	88448 KB	Output is correct
14	Correct	88 ms	86836 KB	Output is correct
15	Correct	83 ms	89536 KB	Output is correct
16	Correct	82 ms	84992 KB	Output is correct
17	Correct	82 ms	85580 KB	Output is correct
18	Correct	107 ms	133708 KB	Output is correct
19	Correct	85 ms	88384 KB	Output is correct
20	Correct	26 ms	62932 KB	Output is correct
21	Correct	27 ms	62932 KB	Output is correct
22	Correct	28 ms	62932 KB	Output is correct
23	Correct	27 ms	63028 KB	Output is correct
24	Correct	27 ms	62932 KB	Output is correct
25	Correct	27 ms	62932 KB	Output is correct
26	Correct	27 ms	62992 KB	Output is correct
27	Correct	28 ms	62924 KB	Output is correct
28	Correct	28 ms	62940 KB	Output is correct
29	Correct	27 ms	62932 KB	Output is correct
30	Correct	27 ms	62932 KB	Output is correct
31	Correct	28 ms	63188 KB	Output is correct
32	Correct	28 ms	63188 KB	Output is correct
33	Correct	27 ms	63184 KB	Output is correct
34	Correct	27 ms	63188 KB	Output is correct
35	Correct	28 ms	63188 KB	Output is correct
36	Correct	27 ms	63188 KB	Output is correct
37	Correct	28 ms	63176 KB	Output is correct
38	Correct	28 ms	63060 KB	Output is correct
39	Correct	26 ms	63188 KB	Output is correct
40	Correct	27 ms	63060 KB	Output is correct
41	Correct	27 ms	63048 KB	Output is correct
42	Correct	27 ms	63108 KB	Output is correct
43	Correct	28 ms	63188 KB	Output is correct
44	Correct	28 ms	62916 KB	Output is correct
45	Correct	36 ms	67080 KB	Output is correct
46	Correct	37 ms	67024 KB	Output is correct
47	Correct	39 ms	69588 KB	Output is correct
48	Correct	39 ms	70808 KB	Output is correct
49	Correct	39 ms	70992 KB	Output is correct
50	Correct	35 ms	66468 KB	Output is correct
51	Correct	35 ms	66124 KB	Output is correct
52	Correct	37 ms	73428 KB	Output is correct
53	Correct	34 ms	66120 KB	Output is correct
54	Correct	29 ms	62932 KB	Output is correct
55	Correct	28 ms	62920 KB	Output is correct
56	Correct	28 ms	62932 KB	Output is correct
57	Correct	30 ms	62932 KB	Output is correct
58	Correct	27 ms	62932 KB	Output is correct
59	Correct	28 ms	62932 KB	Output is correct
60	Correct	27 ms	62896 KB	Output is correct
61	Correct	28 ms	62932 KB	Output is correct
62	Correct	28 ms	62932 KB	Output is correct
63	Correct	27 ms	63056 KB	Output is correct
64	Correct	27 ms	62932 KB	Output is correct
65	Correct	28 ms	63180 KB	Output is correct
66	Correct	28 ms	63180 KB	Output is correct
67	Correct	28 ms	63188 KB	Output is correct
68	Correct	27 ms	63188 KB	Output is correct
69	Correct	32 ms	63180 KB	Output is correct
70	Correct	27 ms	63352 KB	Output is correct
71	Correct	28 ms	63188 KB	Output is correct
72	Correct	28 ms	63060 KB	Output is correct
73	Correct	28 ms	63188 KB	Output is correct
74	Correct	27 ms	63136 KB	Output is correct
75	Correct	28 ms	63052 KB	Output is correct
76	Correct	28 ms	63180 KB	Output is correct
77	Correct	28 ms	63188 KB	Output is correct
78	Correct	28 ms	62932 KB	Output is correct
79	Correct	39 ms	67160 KB	Output is correct
80	Correct	37 ms	67024 KB	Output is correct
81	Correct	37 ms	69452 KB	Output is correct
82	Correct	39 ms	70884 KB	Output is correct
83	Correct	42 ms	71120 KB	Output is correct
84	Correct	35 ms	66508 KB	Output is correct
85	Correct	34 ms	66068 KB	Output is correct
86	Correct	39 ms	73428 KB	Output is correct
87	Correct	41 ms	66224 KB	Output is correct
88	Correct	36 ms	67016 KB	Output is correct
89	Correct	38 ms	67152 KB	Output is correct
90	Correct	38 ms	66988 KB	Output is correct
91	Correct	36 ms	68052 KB	Output is correct
92	Correct	34 ms	66388 KB	Output is correct
93	Correct	37 ms	71244 KB	Output is correct
94	Correct	35 ms	67572 KB	Output is correct
95	Correct	35 ms	66004 KB	Output is correct
96	Correct	36 ms	71892 KB	Output is correct
97	Correct	37 ms	73036 KB	Output is correct
98	Correct	37 ms	70868 KB	Output is correct
99	Correct	27 ms	62932 KB	Output is correct
100	Correct	27 ms	62932 KB	Output is correct
101	Correct	26 ms	62924 KB	Output is correct
102	Correct	27 ms	62924 KB	Output is correct
103	Correct	27 ms	62932 KB	Output is correct
104	Correct	26 ms	63056 KB	Output is correct
105	Correct	31 ms	62932 KB	Output is correct
106	Correct	26 ms	62932 KB	Output is correct
107	Correct	27 ms	62924 KB	Output is correct
108	Correct	28 ms	63048 KB	Output is correct
109	Correct	28 ms	62932 KB	Output is correct
110	Correct	28 ms	63020 KB	Output is correct
111	Correct	89 ms	88448 KB	Output is correct
112	Correct	84 ms	86652 KB	Output is correct
113	Correct	83 ms	89536 KB	Output is correct
114	Correct	86 ms	85052 KB	Output is correct
115	Correct	81 ms	85576 KB	Output is correct
116	Correct	110 ms	133796 KB	Output is correct
117	Correct	92 ms	88364 KB	Output is correct
118	Correct	28 ms	63096 KB	Output is correct
119	Correct	28 ms	63188 KB	Output is correct
120	Correct	28 ms	63224 KB	Output is correct
121	Correct	28 ms	63168 KB	Output is correct
122	Correct	29 ms	63168 KB	Output is correct
123	Correct	29 ms	63180 KB	Output is correct
124	Correct	28 ms	63228 KB	Output is correct
125	Correct	28 ms	63060 KB	Output is correct
126	Correct	29 ms	63188 KB	Output is correct
127	Correct	28 ms	63060 KB	Output is correct
128	Correct	29 ms	63060 KB	Output is correct
129	Correct	28 ms	63180 KB	Output is correct
130	Correct	29 ms	63176 KB	Output is correct
131	Correct	28 ms	62932 KB	Output is correct
132	Correct	37 ms	67028 KB	Output is correct
133	Correct	38 ms	66920 KB	Output is correct
134	Correct	38 ms	69452 KB	Output is correct
135	Correct	37 ms	70864 KB	Output is correct
136	Correct	38 ms	70992 KB	Output is correct
137	Correct	36 ms	66508 KB	Output is correct
138	Correct	36 ms	66136 KB	Output is correct
139	Correct	39 ms	73420 KB	Output is correct
140	Correct	39 ms	66320 KB	Output is correct
141	Correct	44 ms	67016 KB	Output is correct
142	Correct	38 ms	67140 KB	Output is correct
143	Correct	37 ms	67020 KB	Output is correct
144	Correct	36 ms	67916 KB	Output is correct
145	Correct	36 ms	66388 KB	Output is correct
146	Correct	39 ms	71244 KB	Output is correct
147	Correct	38 ms	67660 KB	Output is correct
148	Correct	36 ms	66004 KB	Output is correct
149	Correct	38 ms	71884 KB	Output is correct
150	Correct	39 ms	73044 KB	Output is correct
151	Correct	37 ms	70860 KB	Output is correct
152	Correct	280 ms	157960 KB	Output is correct
153	Correct	297 ms	162924 KB	Output is correct
154	Correct	275 ms	158712 KB	Output is correct
155	Correct	292 ms	196792 KB	Output is correct
156	Correct	274 ms	150452 KB	Output is correct
157	Correct	237 ms	133672 KB	Output is correct
158	Correct	275 ms	169444 KB	Output is correct
159	Correct	351 ms	283328 KB	Output is correct
160	Correct	347 ms	264516 KB	Output is correct
161	Correct	272 ms	137160 KB	Output is correct
162	Correct	244 ms	142024 KB	Output is correct

Submission #839206

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 10.0 / 10.0

Subtask #3 20.0 / 20.0

Subtask #4 10.0 / 10.0

Subtask #5 25.0 / 25.0

Subtask #6 20.0 / 20.0

Subtask #1
15.0 / 15.0

Subtask #2
10.0 / 10.0

Subtask #3
20.0 / 20.0

Subtask #4
10.0 / 10.0

Subtask #5
25.0 / 25.0

Subtask #6
20.0 / 20.0