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Submission #426337

# Submission time Handle Problem Language Result Execution time Memory
426337 2021-06-13T18:30:16 Z dolphingarlic The short shank; Redemption (BOI21_prison) C++14
100 / 100
 452 ms 125052 KB 
#include <bits/stdc++.h>
using namespace std;

int depth[2000001], mx_child[2000001];
vector<int> children[2000001];

int main() {
	cin.tie(0)->sync_with_stdio(0);
	int n, d, tx;
	cin >> n >> d >> tx;

	int ans = n, glob_mx = 0, loc_mx = 0;
	priority_queue<pair<int, int>> pq;
	stack<pair<int, int>> stck;
	for (int i = 1; i <= n; i++) {
		int t;
		cin >> t;
		glob_mx = max(glob_mx, i + tx - t);
		loc_mx = max(loc_mx, i + tx - t);
		if (stck.size())
			stck.top().second = max(stck.top().second, loc_mx);
		if (t > tx) {
			if (glob_mx < i) ans--;
			else {
				depth[i] = 1;
				while (stck.size()) {
					int node, tmp_mx;
					tie(node, tmp_mx) = stck.top();
					if (tmp_mx >= i) break;
					children[i].push_back(node);
					if (depth[node] + 1 > depth[i]) {
						depth[i] = depth[node] + 1;
						mx_child[i] = node;
					}
					stck.pop();
					if (stck.size())
						stck.top().second = max(stck.top().second, tmp_mx);
				}
				loc_mx = i + tx - t;
				stck.push({i, loc_mx});
			}
		}
	}
	while (stck.size()) {
		int root = stck.top().first;
		pq.push({depth[root], root});
		stck.pop();
	}

	while (d-- && pq.size()) {
		pair<int, int> curr = pq.top();
		pq.pop();
		ans -= curr.first;
		int node = curr.second;
		while (node) {
			for (int i : children[node]) if (i != mx_child[node])
				pq.push({depth[i], i});
			node = mx_child[node];
		}
	}
	cout << ans;
	return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 47180 KB Output is correct
2 Correct 40 ms 47280 KB Output is correct
3 Correct 38 ms 47412 KB Output is correct
4 Correct 44 ms 47256 KB Output is correct
5 Correct 36 ms 47172 KB Output is correct
6 Correct 33 ms 47284 KB Output is correct
7 Correct 31 ms 47280 KB Output is correct
8 Correct 36 ms 47220 KB Output is correct
9 Correct 32 ms 47176 KB Output is correct
10 Correct 39 ms 47260 KB Output is correct
11 Correct 38 ms 47276 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47292 KB Output is correct
2 Correct 126 ms 62140 KB Output is correct
3 Correct 128 ms 59840 KB Output is correct
4 Correct 118 ms 61216 KB Output is correct
5 Correct 114 ms 61768 KB Output is correct
6 Correct 112 ms 59388 KB Output is correct
7 Correct 134 ms 70720 KB Output is correct
8 Correct 121 ms 61076 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 47180 KB Output is correct
2 Correct 40 ms 47280 KB Output is correct
3 Correct 38 ms 47412 KB Output is correct
4 Correct 44 ms 47256 KB Output is correct
5 Correct 36 ms 47172 KB Output is correct
6 Correct 33 ms 47284 KB Output is correct
7 Correct 31 ms 47280 KB Output is correct
8 Correct 36 ms 47220 KB Output is correct
9 Correct 32 ms 47176 KB Output is correct
10 Correct 39 ms 47260 KB Output is correct
11 Correct 38 ms 47276 KB Output is correct
12 Correct 32 ms 47336 KB Output is correct
13 Correct 35 ms 47312 KB Output is correct
14 Correct 37 ms 47176 KB Output is correct
15 Correct 36 ms 47180 KB Output is correct
16 Correct 34 ms 47172 KB Output is correct
17 Correct 33 ms 47172 KB Output is correct
18 Correct 32 ms 47180 KB Output is correct
19 Correct 31 ms 47308 KB Output is correct
20 Correct 33 ms 47308 KB Output is correct
21 Correct 35 ms 47280 KB Output is correct
22 Correct 32 ms 47264 KB Output is correct
23 Correct 41 ms 47412 KB Output is correct
24 Correct 32 ms 47392 KB Output is correct
25 Correct 31 ms 47324 KB Output is correct
26 Correct 36 ms 47300 KB Output is correct
27 Correct 41 ms 47332 KB Output is correct
28 Correct 33 ms 47388 KB Output is correct
29 Correct 30 ms 47436 KB Output is correct
30 Correct 38 ms 47304 KB Output is correct
31 Correct 34 ms 47300 KB Output is correct
32 Correct 31 ms 47280 KB Output is correct
33 Correct 39 ms 47300 KB Output is correct
34 Correct 33 ms 47384 KB Output is correct
35 Correct 43 ms 47300 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 47216 KB Output is correct
2 Correct 52 ms 50052 KB Output is correct
3 Correct 46 ms 49696 KB Output is correct
4 Correct 47 ms 49704 KB Output is correct
5 Correct 45 ms 50080 KB Output is correct
6 Correct 45 ms 50116 KB Output is correct
7 Correct 52 ms 49076 KB Output is correct
8 Correct 50 ms 48884 KB Output is correct
9 Correct 49 ms 50624 KB Output is correct
10 Correct 43 ms 48976 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 47180 KB Output is correct
2 Correct 40 ms 47280 KB Output is correct
3 Correct 38 ms 47412 KB Output is correct
4 Correct 44 ms 47256 KB Output is correct
5 Correct 36 ms 47172 KB Output is correct
6 Correct 33 ms 47284 KB Output is correct
7 Correct 31 ms 47280 KB Output is correct
8 Correct 36 ms 47220 KB Output is correct
9 Correct 32 ms 47176 KB Output is correct
10 Correct 39 ms 47260 KB Output is correct
11 Correct 38 ms 47276 KB Output is correct
12 Correct 32 ms 47336 KB Output is correct
13 Correct 35 ms 47312 KB Output is correct
14 Correct 37 ms 47176 KB Output is correct
15 Correct 36 ms 47180 KB Output is correct
16 Correct 34 ms 47172 KB Output is correct
17 Correct 33 ms 47172 KB Output is correct
18 Correct 32 ms 47180 KB Output is correct
19 Correct 31 ms 47308 KB Output is correct
20 Correct 33 ms 47308 KB Output is correct
21 Correct 35 ms 47280 KB Output is correct
22 Correct 32 ms 47264 KB Output is correct
23 Correct 41 ms 47412 KB Output is correct
24 Correct 32 ms 47392 KB Output is correct
25 Correct 31 ms 47324 KB Output is correct
26 Correct 36 ms 47300 KB Output is correct
27 Correct 41 ms 47332 KB Output is correct
28 Correct 33 ms 47388 KB Output is correct
29 Correct 30 ms 47436 KB Output is correct
30 Correct 38 ms 47304 KB Output is correct
31 Correct 34 ms 47300 KB Output is correct
32 Correct 31 ms 47280 KB Output is correct
33 Correct 39 ms 47300 KB Output is correct
34 Correct 33 ms 47384 KB Output is correct
35 Correct 43 ms 47300 KB Output is correct
36 Correct 27 ms 47216 KB Output is correct
37 Correct 52 ms 50052 KB Output is correct
38 Correct 46 ms 49696 KB Output is correct
39 Correct 47 ms 49704 KB Output is correct
40 Correct 45 ms 50080 KB Output is correct
41 Correct 45 ms 50116 KB Output is correct
42 Correct 52 ms 49076 KB Output is correct
43 Correct 50 ms 48884 KB Output is correct
44 Correct 49 ms 50624 KB Output is correct
45 Correct 43 ms 48976 KB Output is correct
46 Correct 39 ms 47260 KB Output is correct
47 Correct 39 ms 47172 KB Output is correct
48 Correct 30 ms 47292 KB Output is correct
49 Correct 34 ms 47200 KB Output is correct
50 Correct 30 ms 47284 KB Output is correct
51 Correct 31 ms 47232 KB Output is correct
52 Correct 37 ms 47248 KB Output is correct
53 Correct 32 ms 47228 KB Output is correct
54 Correct 39 ms 47172 KB Output is correct
55 Correct 32 ms 47316 KB Output is correct
56 Correct 29 ms 47280 KB Output is correct
57 Correct 32 ms 47420 KB Output is correct
58 Correct 31 ms 47308 KB Output is correct
59 Correct 32 ms 47336 KB Output is correct
60 Correct 36 ms 47300 KB Output is correct
61 Correct 39 ms 47300 KB Output is correct
62 Correct 35 ms 47396 KB Output is correct
63 Correct 31 ms 47436 KB Output is correct
64 Correct 58 ms 47292 KB Output is correct
65 Correct 40 ms 47364 KB Output is correct
66 Correct 30 ms 47300 KB Output is correct
67 Correct 30 ms 47260 KB Output is correct
68 Correct 33 ms 47308 KB Output is correct
69 Correct 49 ms 47424 KB Output is correct
70 Correct 38 ms 47168 KB Output is correct
71 Correct 61 ms 50016 KB Output is correct
72 Correct 45 ms 49736 KB Output is correct
73 Correct 43 ms 49724 KB Output is correct
74 Correct 44 ms 50060 KB Output is correct
75 Correct 49 ms 50124 KB Output is correct
76 Correct 57 ms 49120 KB Output is correct
77 Correct 46 ms 48848 KB Output is correct
78 Correct 46 ms 50720 KB Output is correct
79 Correct 54 ms 48968 KB Output is correct
80 Correct 51 ms 49732 KB Output is correct
81 Correct 60 ms 50064 KB Output is correct
82 Correct 49 ms 49732 KB Output is correct
83 Correct 46 ms 49892 KB Output is correct
84 Correct 41 ms 49364 KB Output is correct
85 Correct 45 ms 50316 KB Output is correct
86 Correct 46 ms 49428 KB Output is correct
87 Correct 46 ms 48976 KB Output is correct
88 Correct 44 ms 50208 KB Output is correct
89 Correct 49 ms 50580 KB Output is correct
90 Correct 52 ms 50064 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 47180 KB Output is correct
2 Correct 40 ms 47280 KB Output is correct
3 Correct 38 ms 47412 KB Output is correct
4 Correct 44 ms 47256 KB Output is correct
5 Correct 36 ms 47172 KB Output is correct
6 Correct 33 ms 47284 KB Output is correct
7 Correct 31 ms 47280 KB Output is correct
8 Correct 36 ms 47220 KB Output is correct
9 Correct 32 ms 47176 KB Output is correct
10 Correct 39 ms 47260 KB Output is correct
11 Correct 38 ms 47276 KB Output is correct
12 Correct 29 ms 47292 KB Output is correct
13 Correct 126 ms 62140 KB Output is correct
14 Correct 128 ms 59840 KB Output is correct
15 Correct 118 ms 61216 KB Output is correct
16 Correct 114 ms 61768 KB Output is correct
17 Correct 112 ms 59388 KB Output is correct
18 Correct 134 ms 70720 KB Output is correct
19 Correct 121 ms 61076 KB Output is correct
20 Correct 32 ms 47336 KB Output is correct
21 Correct 35 ms 47312 KB Output is correct
22 Correct 37 ms 47176 KB Output is correct
23 Correct 36 ms 47180 KB Output is correct
24 Correct 34 ms 47172 KB Output is correct
25 Correct 33 ms 47172 KB Output is correct
26 Correct 32 ms 47180 KB Output is correct
27 Correct 31 ms 47308 KB Output is correct
28 Correct 33 ms 47308 KB Output is correct
29 Correct 35 ms 47280 KB Output is correct
30 Correct 32 ms 47264 KB Output is correct
31 Correct 41 ms 47412 KB Output is correct
32 Correct 32 ms 47392 KB Output is correct
33 Correct 31 ms 47324 KB Output is correct
34 Correct 36 ms 47300 KB Output is correct
35 Correct 41 ms 47332 KB Output is correct
36 Correct 33 ms 47388 KB Output is correct
37 Correct 30 ms 47436 KB Output is correct
38 Correct 38 ms 47304 KB Output is correct
39 Correct 34 ms 47300 KB Output is correct
40 Correct 31 ms 47280 KB Output is correct
41 Correct 39 ms 47300 KB Output is correct
42 Correct 33 ms 47384 KB Output is correct
43 Correct 43 ms 47300 KB Output is correct
44 Correct 27 ms 47216 KB Output is correct
45 Correct 52 ms 50052 KB Output is correct
46 Correct 46 ms 49696 KB Output is correct
47 Correct 47 ms 49704 KB Output is correct
48 Correct 45 ms 50080 KB Output is correct
49 Correct 45 ms 50116 KB Output is correct
50 Correct 52 ms 49076 KB Output is correct
51 Correct 50 ms 48884 KB Output is correct
52 Correct 49 ms 50624 KB Output is correct
53 Correct 43 ms 48976 KB Output is correct
54 Correct 39 ms 47260 KB Output is correct
55 Correct 39 ms 47172 KB Output is correct
56 Correct 30 ms 47292 KB Output is correct
57 Correct 34 ms 47200 KB Output is correct
58 Correct 30 ms 47284 KB Output is correct
59 Correct 31 ms 47232 KB Output is correct
60 Correct 37 ms 47248 KB Output is correct
61 Correct 32 ms 47228 KB Output is correct
62 Correct 39 ms 47172 KB Output is correct
63 Correct 32 ms 47316 KB Output is correct
64 Correct 29 ms 47280 KB Output is correct
65 Correct 32 ms 47420 KB Output is correct
66 Correct 31 ms 47308 KB Output is correct
67 Correct 32 ms 47336 KB Output is correct
68 Correct 36 ms 47300 KB Output is correct
69 Correct 39 ms 47300 KB Output is correct
70 Correct 35 ms 47396 KB Output is correct
71 Correct 31 ms 47436 KB Output is correct
72 Correct 58 ms 47292 KB Output is correct
73 Correct 40 ms 47364 KB Output is correct
74 Correct 30 ms 47300 KB Output is correct
75 Correct 30 ms 47260 KB Output is correct
76 Correct 33 ms 47308 KB Output is correct
77 Correct 49 ms 47424 KB Output is correct
78 Correct 38 ms 47168 KB Output is correct
79 Correct 61 ms 50016 KB Output is correct
80 Correct 45 ms 49736 KB Output is correct
81 Correct 43 ms 49724 KB Output is correct
82 Correct 44 ms 50060 KB Output is correct
83 Correct 49 ms 50124 KB Output is correct
84 Correct 57 ms 49120 KB Output is correct
85 Correct 46 ms 48848 KB Output is correct
86 Correct 46 ms 50720 KB Output is correct
87 Correct 54 ms 48968 KB Output is correct
88 Correct 51 ms 49732 KB Output is correct
89 Correct 60 ms 50064 KB Output is correct
90 Correct 49 ms 49732 KB Output is correct
91 Correct 46 ms 49892 KB Output is correct
92 Correct 41 ms 49364 KB Output is correct
93 Correct 45 ms 50316 KB Output is correct
94 Correct 46 ms 49428 KB Output is correct
95 Correct 46 ms 48976 KB Output is correct
96 Correct 44 ms 50208 KB Output is correct
97 Correct 49 ms 50580 KB Output is correct
98 Correct 52 ms 50064 KB Output is correct
99 Correct 31 ms 47180 KB Output is correct
100 Correct 33 ms 47196 KB Output is correct
101 Correct 37 ms 47212 KB Output is correct
102 Correct 39 ms 47192 KB Output is correct
103 Correct 30 ms 47216 KB Output is correct
104 Correct 32 ms 47316 KB Output is correct
105 Correct 34 ms 47180 KB Output is correct
106 Correct 37 ms 47172 KB Output is correct
107 Correct 38 ms 47180 KB Output is correct
108 Correct 42 ms 47192 KB Output is correct
109 Correct 32 ms 47172 KB Output is correct
110 Correct 34 ms 47252 KB Output is correct
111 Correct 119 ms 62148 KB Output is correct
112 Correct 136 ms 59840 KB Output is correct
113 Correct 121 ms 61232 KB Output is correct
114 Correct 108 ms 61716 KB Output is correct
115 Correct 134 ms 59428 KB Output is correct
116 Correct 136 ms 70724 KB Output is correct
117 Correct 126 ms 61048 KB Output is correct
118 Correct 34 ms 47412 KB Output is correct
119 Correct 34 ms 47332 KB Output is correct
120 Correct 39 ms 47308 KB Output is correct
121 Correct 40 ms 47368 KB Output is correct
122 Correct 34 ms 47444 KB Output is correct
123 Correct 34 ms 47348 KB Output is correct
124 Correct 31 ms 47332 KB Output is correct
125 Correct 32 ms 47308 KB Output is correct
126 Correct 41 ms 47368 KB Output is correct
127 Correct 40 ms 47240 KB Output is correct
128 Correct 37 ms 47308 KB Output is correct
129 Correct 30 ms 47424 KB Output is correct
130 Correct 32 ms 47400 KB Output is correct
131 Correct 33 ms 47272 KB Output is correct
132 Correct 52 ms 49972 KB Output is correct
133 Correct 54 ms 49640 KB Output is correct
134 Correct 46 ms 49776 KB Output is correct
135 Correct 49 ms 50052 KB Output is correct
136 Correct 47 ms 50104 KB Output is correct
137 Correct 43 ms 49100 KB Output is correct
138 Correct 47 ms 48916 KB Output is correct
139 Correct 48 ms 50700 KB Output is correct
140 Correct 48 ms 48924 KB Output is correct
141 Correct 43 ms 49732 KB Output is correct
142 Correct 58 ms 49988 KB Output is correct
143 Correct 46 ms 49708 KB Output is correct
144 Correct 51 ms 49788 KB Output is correct
145 Correct 47 ms 49356 KB Output is correct
146 Correct 46 ms 50312 KB Output is correct
147 Correct 48 ms 49484 KB Output is correct
148 Correct 52 ms 48964 KB Output is correct
149 Correct 46 ms 50276 KB Output is correct
150 Correct 51 ms 50672 KB Output is correct
151 Correct 55 ms 50116 KB Output is correct
152 Correct 393 ms 106428 KB Output is correct
153 Correct 443 ms 109372 KB Output is correct
154 Correct 382 ms 103860 KB Output is correct
155 Correct 420 ms 112612 KB Output is correct
156 Correct 412 ms 106804 KB Output is correct
157 Correct 340 ms 88664 KB Output is correct
158 Correct 378 ms 101348 KB Output is correct
159 Correct 443 ms 125052 KB Output is correct
160 Correct 452 ms 121652 KB Output is correct
161 Correct 400 ms 85996 KB Output is correct
162 Correct 360 ms 88412 KB Output is correct