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답안 #729099

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
729099 2023-04-23T13:55:39 Z _martynas The short shank; Redemption (BOI21_prison) C++11
100 / 100
 516 ms 58524 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() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    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

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 83 ms 11744 KB Output is correct
3 Correct 66 ms 11476 KB Output is correct
4 Correct 70 ms 12976 KB Output is correct
5 Correct 69 ms 12096 KB Output is correct
6 Correct 88 ms 10824 KB Output is correct
7 Correct 98 ms 17228 KB Output is correct
8 Correct 69 ms 12460 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 328 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 340 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 4 ms 456 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 2 ms 508 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 2 ms 472 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 2 ms 488 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 360 KB Output is correct
34 Correct 2 ms 472 KB Output is correct
35 Correct 1 ms 468 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 18 ms 2380 KB Output is correct
3 Correct 12 ms 2348 KB Output is correct
4 Correct 11 ms 2596 KB Output is correct
5 Correct 11 ms 2360 KB Output is correct
6 Correct 10 ms 2488 KB Output is correct
7 Correct 9 ms 2260 KB Output is correct
8 Correct 10 ms 2004 KB Output is correct
9 Correct 12 ms 3156 KB Output is correct
10 Correct 11 ms 1620 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 328 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 340 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 4 ms 456 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 2 ms 508 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 2 ms 472 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 2 ms 488 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 360 KB Output is correct
34 Correct 2 ms 472 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 18 ms 2380 KB Output is correct
38 Correct 12 ms 2348 KB Output is correct
39 Correct 11 ms 2596 KB Output is correct
40 Correct 11 ms 2360 KB Output is correct
41 Correct 10 ms 2488 KB Output is correct
42 Correct 9 ms 2260 KB Output is correct
43 Correct 10 ms 2004 KB Output is correct
44 Correct 12 ms 3156 KB Output is correct
45 Correct 11 ms 1620 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 1 ms 344 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 336 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 468 KB Output is correct
58 Correct 2 ms 508 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 2 ms 468 KB Output is correct
61 Correct 1 ms 508 KB Output is correct
62 Correct 2 ms 476 KB Output is correct
63 Correct 2 ms 468 KB Output is correct
64 Correct 2 ms 472 KB Output is correct
65 Correct 1 ms 476 KB Output is correct
66 Correct 1 ms 468 KB Output is correct
67 Correct 2 ms 336 KB Output is correct
68 Correct 1 ms 468 KB Output is correct
69 Correct 2 ms 468 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 12 ms 2368 KB Output is correct
72 Correct 12 ms 2404 KB Output is correct
73 Correct 19 ms 2576 KB Output is correct
74 Correct 12 ms 2388 KB Output is correct
75 Correct 12 ms 2520 KB Output is correct
76 Correct 15 ms 2236 KB Output is correct
77 Correct 12 ms 2000 KB Output is correct
78 Correct 15 ms 3104 KB Output is correct
79 Correct 9 ms 1620 KB Output is correct
80 Correct 11 ms 2412 KB Output is correct
81 Correct 16 ms 2388 KB Output is correct
82 Correct 14 ms 2388 KB Output is correct
83 Correct 12 ms 2552 KB Output is correct
84 Correct 11 ms 2524 KB Output is correct
85 Correct 16 ms 2692 KB Output is correct
86 Correct 12 ms 2580 KB Output is correct
87 Correct 10 ms 2184 KB Output is correct
88 Correct 18 ms 2772 KB Output is correct
89 Correct 12 ms 3156 KB Output is correct
90 Correct 18 ms 2564 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 83 ms 11744 KB Output is correct
14 Correct 66 ms 11476 KB Output is correct
15 Correct 70 ms 12976 KB Output is correct
16 Correct 69 ms 12096 KB Output is correct
17 Correct 88 ms 10824 KB Output is correct
18 Correct 98 ms 17228 KB Output is correct
19 Correct 69 ms 12460 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 328 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 340 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 328 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 2 ms 468 KB Output is correct
33 Correct 4 ms 456 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 2 ms 508 KB Output is correct
36 Correct 2 ms 468 KB Output is correct
37 Correct 2 ms 472 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 2 ms 488 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 360 KB Output is correct
42 Correct 2 ms 472 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 328 KB Output is correct
45 Correct 18 ms 2380 KB Output is correct
46 Correct 12 ms 2348 KB Output is correct
47 Correct 11 ms 2596 KB Output is correct
48 Correct 11 ms 2360 KB Output is correct
49 Correct 10 ms 2488 KB Output is correct
50 Correct 9 ms 2260 KB Output is correct
51 Correct 10 ms 2004 KB Output is correct
52 Correct 12 ms 3156 KB Output is correct
53 Correct 11 ms 1620 KB Output is correct
54 Correct 1 ms 344 KB Output is correct
55 Correct 1 ms 344 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 1 ms 336 KB Output is correct
62 Correct 1 ms 336 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 468 KB Output is correct
66 Correct 2 ms 508 KB Output is correct
67 Correct 1 ms 468 KB Output is correct
68 Correct 2 ms 468 KB Output is correct
69 Correct 1 ms 508 KB Output is correct
70 Correct 2 ms 476 KB Output is correct
71 Correct 2 ms 468 KB Output is correct
72 Correct 2 ms 472 KB Output is correct
73 Correct 1 ms 476 KB Output is correct
74 Correct 1 ms 468 KB Output is correct
75 Correct 2 ms 336 KB Output is correct
76 Correct 1 ms 468 KB Output is correct
77 Correct 2 ms 468 KB Output is correct
78 Correct 1 ms 332 KB Output is correct
79 Correct 12 ms 2368 KB Output is correct
80 Correct 12 ms 2404 KB Output is correct
81 Correct 19 ms 2576 KB Output is correct
82 Correct 12 ms 2388 KB Output is correct
83 Correct 12 ms 2520 KB Output is correct
84 Correct 15 ms 2236 KB Output is correct
85 Correct 12 ms 2000 KB Output is correct
86 Correct 15 ms 3104 KB Output is correct
87 Correct 9 ms 1620 KB Output is correct
88 Correct 11 ms 2412 KB Output is correct
89 Correct 16 ms 2388 KB Output is correct
90 Correct 14 ms 2388 KB Output is correct
91 Correct 12 ms 2552 KB Output is correct
92 Correct 11 ms 2524 KB Output is correct
93 Correct 16 ms 2692 KB Output is correct
94 Correct 12 ms 2580 KB Output is correct
95 Correct 10 ms 2184 KB Output is correct
96 Correct 18 ms 2772 KB Output is correct
97 Correct 12 ms 3156 KB Output is correct
98 Correct 18 ms 2564 KB Output is correct
99 Correct 1 ms 328 KB Output is correct
100 Correct 1 ms 340 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 384 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 340 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 77 ms 11960 KB Output is correct
112 Correct 69 ms 11600 KB Output is correct
113 Correct 77 ms 13120 KB Output is correct
114 Correct 66 ms 12436 KB Output is correct
115 Correct 63 ms 10956 KB Output is correct
116 Correct 78 ms 17368 KB Output is correct
117 Correct 68 ms 12600 KB Output is correct
118 Correct 1 ms 468 KB Output is correct
119 Correct 2 ms 468 KB Output is correct
120 Correct 2 ms 468 KB Output is correct
121 Correct 2 ms 468 KB Output is correct
122 Correct 1 ms 468 KB Output is correct
123 Correct 1 ms 504 KB Output is correct
124 Correct 1 ms 468 KB Output is correct
125 Correct 1 ms 468 KB Output is correct
126 Correct 1 ms 468 KB Output is correct
127 Correct 1 ms 360 KB Output is correct
128 Correct 1 ms 344 KB Output is correct
129 Correct 1 ms 472 KB Output is correct
130 Correct 1 ms 472 KB Output is correct
131 Correct 1 ms 340 KB Output is correct
132 Correct 12 ms 2516 KB Output is correct
133 Correct 17 ms 2388 KB Output is correct
134 Correct 14 ms 2496 KB Output is correct
135 Correct 12 ms 2372 KB Output is correct
136 Correct 12 ms 2520 KB Output is correct
137 Correct 10 ms 2356 KB Output is correct
138 Correct 9 ms 2004 KB Output is correct
139 Correct 11 ms 3156 KB Output is correct
140 Correct 9 ms 1620 KB Output is correct
141 Correct 11 ms 2476 KB Output is correct
142 Correct 12 ms 2516 KB Output is correct
143 Correct 11 ms 2384 KB Output is correct
144 Correct 14 ms 2604 KB Output is correct
145 Correct 10 ms 2472 KB Output is correct
146 Correct 19 ms 2564 KB Output is correct
147 Correct 15 ms 2520 KB Output is correct
148 Correct 9 ms 2276 KB Output is correct
149 Correct 17 ms 2776 KB Output is correct
150 Correct 10 ms 3156 KB Output is correct
151 Correct 15 ms 2516 KB Output is correct
152 Correct 303 ms 47488 KB Output is correct
153 Correct 326 ms 49108 KB Output is correct
154 Correct 361 ms 47012 KB Output is correct
155 Correct 299 ms 50508 KB Output is correct
156 Correct 303 ms 49156 KB Output is correct
157 Correct 263 ms 37448 KB Output is correct
158 Correct 351 ms 46836 KB Output is correct
159 Correct 494 ms 58524 KB Output is correct
160 Correct 516 ms 57936 KB Output is correct
161 Correct 270 ms 28288 KB Output is correct
162 Correct 279 ms 34680 KB Output is correct