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Submission #729097

# Submission time Handle Problem Language Result Execution time Memory
729097 2023-04-23T13:54:59 Z _martynas The short shank; Redemption (BOI21_prison) C++11
100 / 100
 981 ms 75612 KB 
#include <bits/stdc++.h>

using namespace std;

#define PB push_back
#define all(a) (a).begin(), (a).end()

const int MXN = 2e6+5;

int n, d, t;
int T[MXN];
int always = 0, perchance = 0, preventable = 0;
bool maybe[MXN];
int covered_by[MXN], par[MXN], H[MXN], who[MXN];
bool visited[MXN];

int main() {
    cin >> n >> d >> t;
    for(int i = 1; i <= n; i++) cin >> T[i];
    stack<int> st;
    for(int i = n; i >= 1; i--) {
        while(!st.empty() && st.top()-i <= t-T[i]) {
            covered_by[st.top()] = i;
            maybe[st.top()] = true;
            perchance++;
            st.pop();
        }
        if(T[i] > t) st.push(i);
        else always++;
    }
    stack<int> open, closing;
    for(int i = n; i >= 1; i--) {
        while(!closing.empty() && closing.top() == i) open.pop(), closing.pop();
        if(!maybe[i]) continue;
        if(!open.empty()) {
            par[i] = open.top();
        }
        open.push(i);
        closing.push(covered_by[i]);
    }
    vector<int> order;
    for(int i = 1; i <= n; i++) {
        if(!maybe[i]) continue;
        if(par[i] != 0) {
            if(H[par[i]] < H[i]+1) {
                H[par[i]] = H[i]+1;
                who[par[i]] = i;
            }
        }
        order.PB(i);
    }
    sort(all(order), [&](int i, int j) {
         return H[i] > H[j];
    });
    for(int i : order) {
        if(visited[i]) continue;
        if(!d) break;
        int j = i;
        while(j) {
            preventable++;
            visited[j] = true;
            j = who[j];
        }
        d--;
    }
    cout << always+(perchance-preventable) << "\n";
    return 0;
}
/*
1 1 1
2


*/

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 312 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 219 ms 16592 KB Output is correct
3 Correct 222 ms 16260 KB Output is correct
4 Correct 173 ms 16192 KB Output is correct
5 Correct 122 ms 13900 KB Output is correct
6 Correct 189 ms 14752 KB Output is correct
7 Correct 241 ms 21016 KB Output is correct
8 Correct 217 ms 16308 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 312 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 308 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 1 ms 312 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 4 ms 448 KB Output is correct
24 Correct 3 ms 444 KB Output is correct
25 Correct 4 ms 468 KB Output is correct
26 Correct 3 ms 468 KB Output is correct
27 Correct 3 ms 468 KB Output is correct
28 Correct 4 ms 480 KB Output is correct
29 Correct 3 ms 488 KB Output is correct
30 Correct 3 ms 472 KB Output is correct
31 Correct 4 ms 480 KB Output is correct
32 Correct 2 ms 340 KB Output is correct
33 Correct 3 ms 320 KB Output is correct
34 Correct 2 ms 452 KB Output is correct
35 Correct 3 ms 468 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 43 ms 2860 KB Output is correct
3 Correct 34 ms 2880 KB Output is correct
4 Correct 27 ms 2848 KB Output is correct
5 Correct 42 ms 2892 KB Output is correct
6 Correct 34 ms 2924 KB Output is correct
7 Correct 31 ms 2496 KB Output is correct
8 Correct 29 ms 2292 KB Output is correct
9 Correct 28 ms 3444 KB Output is correct
10 Correct 25 ms 1876 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 312 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 308 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 1 ms 312 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 4 ms 448 KB Output is correct
24 Correct 3 ms 444 KB Output is correct
25 Correct 4 ms 468 KB Output is correct
26 Correct 3 ms 468 KB Output is correct
27 Correct 3 ms 468 KB Output is correct
28 Correct 4 ms 480 KB Output is correct
29 Correct 3 ms 488 KB Output is correct
30 Correct 3 ms 472 KB Output is correct
31 Correct 4 ms 480 KB Output is correct
32 Correct 2 ms 340 KB Output is correct
33 Correct 3 ms 320 KB Output is correct
34 Correct 2 ms 452 KB Output is correct
35 Correct 3 ms 468 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 43 ms 2860 KB Output is correct
38 Correct 34 ms 2880 KB Output is correct
39 Correct 27 ms 2848 KB Output is correct
40 Correct 42 ms 2892 KB Output is correct
41 Correct 34 ms 2924 KB Output is correct
42 Correct 31 ms 2496 KB Output is correct
43 Correct 29 ms 2292 KB Output is correct
44 Correct 28 ms 3444 KB Output is correct
45 Correct 25 ms 1876 KB Output is correct
46 Correct 1 ms 304 KB Output is correct
47 Correct 1 ms 308 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 300 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 304 KB Output is correct
52 Correct 1 ms 308 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 2 ms 468 KB Output is correct
58 Correct 2 ms 468 KB Output is correct
59 Correct 3 ms 456 KB Output is correct
60 Correct 2 ms 468 KB Output is correct
61 Correct 3 ms 468 KB Output is correct
62 Correct 4 ms 484 KB Output is correct
63 Correct 3 ms 448 KB Output is correct
64 Correct 3 ms 444 KB Output is correct
65 Correct 2 ms 448 KB Output is correct
66 Correct 2 ms 348 KB Output is correct
67 Correct 3 ms 340 KB Output is correct
68 Correct 3 ms 452 KB Output is correct
69 Correct 3 ms 468 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 44 ms 2916 KB Output is correct
72 Correct 38 ms 2824 KB Output is correct
73 Correct 26 ms 2956 KB Output is correct
74 Correct 31 ms 2948 KB Output is correct
75 Correct 34 ms 2988 KB Output is correct
76 Correct 25 ms 2508 KB Output is correct
77 Correct 25 ms 2296 KB Output is correct
78 Correct 27 ms 3444 KB Output is correct
79 Correct 23 ms 1880 KB Output is correct
80 Correct 34 ms 2872 KB Output is correct
81 Correct 36 ms 2888 KB Output is correct
82 Correct 33 ms 2864 KB Output is correct
83 Correct 34 ms 2772 KB Output is correct
84 Correct 17 ms 2504 KB Output is correct
85 Correct 35 ms 3148 KB Output is correct
86 Correct 26 ms 2728 KB Output is correct
87 Correct 24 ms 2508 KB Output is correct
88 Correct 35 ms 3124 KB Output is correct
89 Correct 27 ms 3388 KB Output is correct
90 Correct 30 ms 2872 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 312 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 308 KB Output is correct
13 Correct 219 ms 16592 KB Output is correct
14 Correct 222 ms 16260 KB Output is correct
15 Correct 173 ms 16192 KB Output is correct
16 Correct 122 ms 13900 KB Output is correct
17 Correct 189 ms 14752 KB Output is correct
18 Correct 241 ms 21016 KB Output is correct
19 Correct 217 ms 16308 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 304 KB Output is correct
28 Correct 1 ms 312 KB Output is correct
29 Correct 2 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 4 ms 448 KB Output is correct
32 Correct 3 ms 444 KB Output is correct
33 Correct 4 ms 468 KB Output is correct
34 Correct 3 ms 468 KB Output is correct
35 Correct 3 ms 468 KB Output is correct
36 Correct 4 ms 480 KB Output is correct
37 Correct 3 ms 488 KB Output is correct
38 Correct 3 ms 472 KB Output is correct
39 Correct 4 ms 480 KB Output is correct
40 Correct 2 ms 340 KB Output is correct
41 Correct 3 ms 320 KB Output is correct
42 Correct 2 ms 452 KB Output is correct
43 Correct 3 ms 468 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 43 ms 2860 KB Output is correct
46 Correct 34 ms 2880 KB Output is correct
47 Correct 27 ms 2848 KB Output is correct
48 Correct 42 ms 2892 KB Output is correct
49 Correct 34 ms 2924 KB Output is correct
50 Correct 31 ms 2496 KB Output is correct
51 Correct 29 ms 2292 KB Output is correct
52 Correct 28 ms 3444 KB Output is correct
53 Correct 25 ms 1876 KB Output is correct
54 Correct 1 ms 304 KB Output is correct
55 Correct 1 ms 308 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 300 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 304 KB Output is correct
60 Correct 1 ms 308 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 2 ms 468 KB Output is correct
66 Correct 2 ms 468 KB Output is correct
67 Correct 3 ms 456 KB Output is correct
68 Correct 2 ms 468 KB Output is correct
69 Correct 3 ms 468 KB Output is correct
70 Correct 4 ms 484 KB Output is correct
71 Correct 3 ms 448 KB Output is correct
72 Correct 3 ms 444 KB Output is correct
73 Correct 2 ms 448 KB Output is correct
74 Correct 2 ms 348 KB Output is correct
75 Correct 3 ms 340 KB Output is correct
76 Correct 3 ms 452 KB Output is correct
77 Correct 3 ms 468 KB Output is correct
78 Correct 1 ms 340 KB Output is correct
79 Correct 44 ms 2916 KB Output is correct
80 Correct 38 ms 2824 KB Output is correct
81 Correct 26 ms 2956 KB Output is correct
82 Correct 31 ms 2948 KB Output is correct
83 Correct 34 ms 2988 KB Output is correct
84 Correct 25 ms 2508 KB Output is correct
85 Correct 25 ms 2296 KB Output is correct
86 Correct 27 ms 3444 KB Output is correct
87 Correct 23 ms 1880 KB Output is correct
88 Correct 34 ms 2872 KB Output is correct
89 Correct 36 ms 2888 KB Output is correct
90 Correct 33 ms 2864 KB Output is correct
91 Correct 34 ms 2772 KB Output is correct
92 Correct 17 ms 2504 KB Output is correct
93 Correct 35 ms 3148 KB Output is correct
94 Correct 26 ms 2728 KB Output is correct
95 Correct 24 ms 2508 KB Output is correct
96 Correct 35 ms 3124 KB Output is correct
97 Correct 27 ms 3388 KB Output is correct
98 Correct 30 ms 2872 KB Output is correct
99 Correct 1 ms 340 KB Output is correct
100 Correct 1 ms 312 KB Output is correct
101 Correct 1 ms 340 KB Output is correct
102 Correct 1 ms 340 KB Output is correct
103 Correct 1 ms 340 KB Output is correct
104 Correct 1 ms 340 KB Output is correct
105 Correct 1 ms 340 KB Output is correct
106 Correct 1 ms 308 KB Output is correct
107 Correct 1 ms 340 KB Output is correct
108 Correct 1 ms 340 KB Output is correct
109 Correct 1 ms 340 KB Output is correct
110 Correct 1 ms 340 KB Output is correct
111 Correct 214 ms 16532 KB Output is correct
112 Correct 221 ms 16188 KB Output is correct
113 Correct 169 ms 16192 KB Output is correct
114 Correct 134 ms 14084 KB Output is correct
115 Correct 176 ms 14660 KB Output is correct
116 Correct 197 ms 21028 KB Output is correct
117 Correct 192 ms 16240 KB Output is correct
118 Correct 4 ms 468 KB Output is correct
119 Correct 2 ms 468 KB Output is correct
120 Correct 3 ms 448 KB Output is correct
121 Correct 2 ms 484 KB Output is correct
122 Correct 2 ms 468 KB Output is correct
123 Correct 3 ms 576 KB Output is correct
124 Correct 2 ms 468 KB Output is correct
125 Correct 2 ms 468 KB Output is correct
126 Correct 2 ms 468 KB Output is correct
127 Correct 2 ms 320 KB Output is correct
128 Correct 1 ms 340 KB Output is correct
129 Correct 2 ms 468 KB Output is correct
130 Correct 2 ms 468 KB Output is correct
131 Correct 0 ms 312 KB Output is correct
132 Correct 33 ms 2904 KB Output is correct
133 Correct 32 ms 2916 KB Output is correct
134 Correct 29 ms 2932 KB Output is correct
135 Correct 33 ms 2896 KB Output is correct
136 Correct 43 ms 2984 KB Output is correct
137 Correct 26 ms 2524 KB Output is correct
138 Correct 25 ms 2376 KB Output is correct
139 Correct 26 ms 3412 KB Output is correct
140 Correct 24 ms 1876 KB Output is correct
141 Correct 34 ms 2864 KB Output is correct
142 Correct 37 ms 2892 KB Output is correct
143 Correct 33 ms 2924 KB Output is correct
144 Correct 28 ms 2780 KB Output is correct
145 Correct 19 ms 2484 KB Output is correct
146 Correct 34 ms 3152 KB Output is correct
147 Correct 28 ms 2844 KB Output is correct
148 Correct 25 ms 2516 KB Output is correct
149 Correct 34 ms 3024 KB Output is correct
150 Correct 31 ms 3368 KB Output is correct
151 Correct 33 ms 2904 KB Output is correct
152 Correct 877 ms 66888 KB Output is correct
153 Correct 862 ms 68388 KB Output is correct
154 Correct 893 ms 66340 KB Output is correct
155 Correct 731 ms 64040 KB Output is correct
156 Correct 537 ms 56416 KB Output is correct
157 Correct 761 ms 54344 KB Output is correct
158 Correct 758 ms 63492 KB Output is correct
159 Correct 978 ms 75612 KB Output is correct
160 Correct 981 ms 75216 KB Output is correct
161 Correct 756 ms 45096 KB Output is correct
162 Correct 743 ms 51444 KB Output is correct