oj.uz

Submission #426144

# Submission time Handle Problem Language Result Execution time Memory
426144 2021-06-13T14:39:39 Z duality The short shank; Redemption (BOI21_prison) C++11
100 / 100
 671 ms 223492 KB 
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vpii;

int t[2000000];
vpii in;
vpii S;
vi adjList[2000000];
vi S2;
int height[2000000];
vi vv;
int doDFS(int u) {
    int i;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        doDFS(v),height[u] = max(height[u],height[v]+1);
    }
    return 0;
}
int doDFS2(int u,int l) {
    int i,f = 0;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if (!f && (height[u] == height[v]+1)) doDFS2(v,l+1),f = 1;
        else doDFS2(v,1);
    }
    if (!f) vv.pb(l);
    return 0;
}
int main() {
    int i;
    int N,D,T;
    scanf("%d %d %d",&N,&D,&T);
    for (i = 0; i < N; i++) scanf("%d",&t[i]),t[i] -= i;

    int ans = 0;
    for (i = 0; i < N; i++) {
        if (t[i] <= T-i) ans++;
        else {
            int p = upper_bound(S.begin(),S.end(),mp(T-i,(int) 1e9))-S.begin()-1;
            if (p >= 0) in.pb(mp(S[p].second,i-1)),ans++;
        }
        while (!S.empty() && (S.back().first >= t[i])) S.pop_back();
        S.pb(mp(t[i],i));
    }
    for (i = 0; i < in.size(); i++) {
        while (!S2.empty() && (in[S2.back()].first >= in[i].first)) {
            adjList[i].pb(S2.back());
            S2.pop_back();
        }
        S2.pb(i);
    }
    for (i = 0; i < S2.size(); i++) {
        doDFS(S2[i]);
        doDFS2(S2[i],1);
    }
    sort(vv.begin(),vv.end(),greater<int>());
    for (i = 0; i < min(D,(int) vv.size()); i++) ans -= vv[i];
    printf("%d\n",ans);

    return 0;
}

Compilation message

prison.cpp: In function 'int doDFS(int)':
prison.cpp:19:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (i = 0; i < adjList[u].size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~~~~~
prison.cpp: In function 'int doDFS2(int, int)':
prison.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (i = 0; i < adjList[u].size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~~~~~
prison.cpp: In function 'int main()':
prison.cpp:51:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |     for (i = 0; i < in.size(); i++) {
      |                 ~~^~~~~~~~~~~
prison.cpp:58:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for (i = 0; i < S2.size(); i++) {
      |                 ~~^~~~~~~~~~~
prison.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     scanf("%d %d %d",&N,&D,&T);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~
prison.cpp:39:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     for (i = 0; i < N; i++) scanf("%d",&t[i]),t[i] -= i;
      |                             ~~~~~^~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 47236 KB Output is correct
2 Correct 30 ms 47172 KB Output is correct
3 Correct 29 ms 47232 KB Output is correct
4 Correct 34 ms 47196 KB Output is correct
5 Correct 40 ms 47244 KB Output is correct
6 Correct 27 ms 47268 KB Output is correct
7 Correct 33 ms 47180 KB Output is correct
8 Correct 31 ms 47176 KB Output is correct
9 Correct 31 ms 47264 KB Output is correct
10 Correct 37 ms 47152 KB Output is correct
11 Correct 33 ms 47180 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 47228 KB Output is correct
2 Correct 139 ms 62128 KB Output is correct
3 Correct 129 ms 59128 KB Output is correct
4 Correct 147 ms 64288 KB Output is correct
5 Correct 146 ms 63648 KB Output is correct
6 Correct 142 ms 63192 KB Output is correct
7 Correct 206 ms 105832 KB Output is correct
8 Correct 152 ms 64856 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 47236 KB Output is correct
2 Correct 30 ms 47172 KB Output is correct
3 Correct 29 ms 47232 KB Output is correct
4 Correct 34 ms 47196 KB Output is correct
5 Correct 40 ms 47244 KB Output is correct
6 Correct 27 ms 47268 KB Output is correct
7 Correct 33 ms 47180 KB Output is correct
8 Correct 31 ms 47176 KB Output is correct
9 Correct 31 ms 47264 KB Output is correct
10 Correct 37 ms 47152 KB Output is correct
11 Correct 33 ms 47180 KB Output is correct
12 Correct 30 ms 47272 KB Output is correct
13 Correct 29 ms 47268 KB Output is correct
14 Correct 33 ms 47172 KB Output is correct
15 Correct 30 ms 47260 KB Output is correct
16 Correct 33 ms 47264 KB Output is correct
17 Correct 32 ms 47208 KB Output is correct
18 Correct 29 ms 47176 KB Output is correct
19 Correct 31 ms 47368 KB Output is correct
20 Correct 30 ms 47268 KB Output is correct
21 Correct 29 ms 47244 KB Output is correct
22 Correct 40 ms 47268 KB Output is correct
23 Correct 30 ms 47428 KB Output is correct
24 Correct 29 ms 47380 KB Output is correct
25 Correct 29 ms 47308 KB Output is correct
26 Correct 35 ms 47296 KB Output is correct
27 Correct 29 ms 47308 KB Output is correct
28 Correct 29 ms 47300 KB Output is correct
29 Correct 36 ms 47380 KB Output is correct
30 Correct 36 ms 47256 KB Output is correct
31 Correct 28 ms 47404 KB Output is correct
32 Correct 31 ms 47356 KB Output is correct
33 Correct 28 ms 47236 KB Output is correct
34 Correct 32 ms 47300 KB Output is correct
35 Correct 33 ms 47380 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 47252 KB Output is correct
2 Correct 46 ms 49944 KB Output is correct
3 Correct 47 ms 49516 KB Output is correct
4 Correct 53 ms 52268 KB Output is correct
5 Correct 50 ms 53640 KB Output is correct
6 Correct 61 ms 53684 KB Output is correct
7 Correct 42 ms 49600 KB Output is correct
8 Correct 40 ms 49440 KB Output is correct
9 Correct 59 ms 55892 KB Output is correct
10 Correct 44 ms 48864 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 47236 KB Output is correct
2 Correct 30 ms 47172 KB Output is correct
3 Correct 29 ms 47232 KB Output is correct
4 Correct 34 ms 47196 KB Output is correct
5 Correct 40 ms 47244 KB Output is correct
6 Correct 27 ms 47268 KB Output is correct
7 Correct 33 ms 47180 KB Output is correct
8 Correct 31 ms 47176 KB Output is correct
9 Correct 31 ms 47264 KB Output is correct
10 Correct 37 ms 47152 KB Output is correct
11 Correct 33 ms 47180 KB Output is correct
12 Correct 30 ms 47272 KB Output is correct
13 Correct 29 ms 47268 KB Output is correct
14 Correct 33 ms 47172 KB Output is correct
15 Correct 30 ms 47260 KB Output is correct
16 Correct 33 ms 47264 KB Output is correct
17 Correct 32 ms 47208 KB Output is correct
18 Correct 29 ms 47176 KB Output is correct
19 Correct 31 ms 47368 KB Output is correct
20 Correct 30 ms 47268 KB Output is correct
21 Correct 29 ms 47244 KB Output is correct
22 Correct 40 ms 47268 KB Output is correct
23 Correct 30 ms 47428 KB Output is correct
24 Correct 29 ms 47380 KB Output is correct
25 Correct 29 ms 47308 KB Output is correct
26 Correct 35 ms 47296 KB Output is correct
27 Correct 29 ms 47308 KB Output is correct
28 Correct 29 ms 47300 KB Output is correct
29 Correct 36 ms 47380 KB Output is correct
30 Correct 36 ms 47256 KB Output is correct
31 Correct 28 ms 47404 KB Output is correct
32 Correct 31 ms 47356 KB Output is correct
33 Correct 28 ms 47236 KB Output is correct
34 Correct 32 ms 47300 KB Output is correct
35 Correct 33 ms 47380 KB Output is correct
36 Correct 26 ms 47252 KB Output is correct
37 Correct 46 ms 49944 KB Output is correct
38 Correct 47 ms 49516 KB Output is correct
39 Correct 53 ms 52268 KB Output is correct
40 Correct 50 ms 53640 KB Output is correct
41 Correct 61 ms 53684 KB Output is correct
42 Correct 42 ms 49600 KB Output is correct
43 Correct 40 ms 49440 KB Output is correct
44 Correct 59 ms 55892 KB Output is correct
45 Correct 44 ms 48864 KB Output is correct
46 Correct 29 ms 47220 KB Output is correct
47 Correct 31 ms 47284 KB Output is correct
48 Correct 31 ms 47260 KB Output is correct
49 Correct 27 ms 47216 KB Output is correct
50 Correct 36 ms 47260 KB Output is correct
51 Correct 36 ms 47208 KB Output is correct
52 Correct 29 ms 47180 KB Output is correct
53 Correct 28 ms 47224 KB Output is correct
54 Correct 35 ms 47180 KB Output is correct
55 Correct 37 ms 47280 KB Output is correct
56 Correct 27 ms 47272 KB Output is correct
57 Correct 32 ms 47308 KB Output is correct
58 Correct 28 ms 47384 KB Output is correct
59 Correct 31 ms 47376 KB Output is correct
60 Correct 28 ms 47312 KB Output is correct
61 Correct 30 ms 47300 KB Output is correct
62 Correct 30 ms 47324 KB Output is correct
63 Correct 31 ms 47428 KB Output is correct
64 Correct 37 ms 47360 KB Output is correct
65 Correct 37 ms 47372 KB Output is correct
66 Correct 33 ms 47308 KB Output is correct
67 Correct 35 ms 47300 KB Output is correct
68 Correct 32 ms 47288 KB Output is correct
69 Correct 32 ms 47344 KB Output is correct
70 Correct 30 ms 47180 KB Output is correct
71 Correct 49 ms 49980 KB Output is correct
72 Correct 57 ms 49572 KB Output is correct
73 Correct 50 ms 52284 KB Output is correct
74 Correct 51 ms 53576 KB Output is correct
75 Correct 55 ms 53776 KB Output is correct
76 Correct 48 ms 49628 KB Output is correct
77 Correct 44 ms 49484 KB Output is correct
78 Correct 56 ms 55928 KB Output is correct
79 Correct 42 ms 48832 KB Output is correct
80 Correct 45 ms 49552 KB Output is correct
81 Correct 49 ms 49920 KB Output is correct
82 Correct 41 ms 49576 KB Output is correct
83 Correct 58 ms 50960 KB Output is correct
84 Correct 55 ms 49508 KB Output is correct
85 Correct 62 ms 54100 KB Output is correct
86 Correct 63 ms 50616 KB Output is correct
87 Correct 50 ms 49104 KB Output is correct
88 Correct 61 ms 54388 KB Output is correct
89 Correct 62 ms 55592 KB Output is correct
90 Correct 62 ms 53344 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 47236 KB Output is correct
2 Correct 30 ms 47172 KB Output is correct
3 Correct 29 ms 47232 KB Output is correct
4 Correct 34 ms 47196 KB Output is correct
5 Correct 40 ms 47244 KB Output is correct
6 Correct 27 ms 47268 KB Output is correct
7 Correct 33 ms 47180 KB Output is correct
8 Correct 31 ms 47176 KB Output is correct
9 Correct 31 ms 47264 KB Output is correct
10 Correct 37 ms 47152 KB Output is correct
11 Correct 33 ms 47180 KB Output is correct
12 Correct 35 ms 47228 KB Output is correct
13 Correct 139 ms 62128 KB Output is correct
14 Correct 129 ms 59128 KB Output is correct
15 Correct 147 ms 64288 KB Output is correct
16 Correct 146 ms 63648 KB Output is correct
17 Correct 142 ms 63192 KB Output is correct
18 Correct 206 ms 105832 KB Output is correct
19 Correct 152 ms 64856 KB Output is correct
20 Correct 30 ms 47272 KB Output is correct
21 Correct 29 ms 47268 KB Output is correct
22 Correct 33 ms 47172 KB Output is correct
23 Correct 30 ms 47260 KB Output is correct
24 Correct 33 ms 47264 KB Output is correct
25 Correct 32 ms 47208 KB Output is correct
26 Correct 29 ms 47176 KB Output is correct
27 Correct 31 ms 47368 KB Output is correct
28 Correct 30 ms 47268 KB Output is correct
29 Correct 29 ms 47244 KB Output is correct
30 Correct 40 ms 47268 KB Output is correct
31 Correct 30 ms 47428 KB Output is correct
32 Correct 29 ms 47380 KB Output is correct
33 Correct 29 ms 47308 KB Output is correct
34 Correct 35 ms 47296 KB Output is correct
35 Correct 29 ms 47308 KB Output is correct
36 Correct 29 ms 47300 KB Output is correct
37 Correct 36 ms 47380 KB Output is correct
38 Correct 36 ms 47256 KB Output is correct
39 Correct 28 ms 47404 KB Output is correct
40 Correct 31 ms 47356 KB Output is correct
41 Correct 28 ms 47236 KB Output is correct
42 Correct 32 ms 47300 KB Output is correct
43 Correct 33 ms 47380 KB Output is correct
44 Correct 26 ms 47252 KB Output is correct
45 Correct 46 ms 49944 KB Output is correct
46 Correct 47 ms 49516 KB Output is correct
47 Correct 53 ms 52268 KB Output is correct
48 Correct 50 ms 53640 KB Output is correct
49 Correct 61 ms 53684 KB Output is correct
50 Correct 42 ms 49600 KB Output is correct
51 Correct 40 ms 49440 KB Output is correct
52 Correct 59 ms 55892 KB Output is correct
53 Correct 44 ms 48864 KB Output is correct
54 Correct 29 ms 47220 KB Output is correct
55 Correct 31 ms 47284 KB Output is correct
56 Correct 31 ms 47260 KB Output is correct
57 Correct 27 ms 47216 KB Output is correct
58 Correct 36 ms 47260 KB Output is correct
59 Correct 36 ms 47208 KB Output is correct
60 Correct 29 ms 47180 KB Output is correct
61 Correct 28 ms 47224 KB Output is correct
62 Correct 35 ms 47180 KB Output is correct
63 Correct 37 ms 47280 KB Output is correct
64 Correct 27 ms 47272 KB Output is correct
65 Correct 32 ms 47308 KB Output is correct
66 Correct 28 ms 47384 KB Output is correct
67 Correct 31 ms 47376 KB Output is correct
68 Correct 28 ms 47312 KB Output is correct
69 Correct 30 ms 47300 KB Output is correct
70 Correct 30 ms 47324 KB Output is correct
71 Correct 31 ms 47428 KB Output is correct
72 Correct 37 ms 47360 KB Output is correct
73 Correct 37 ms 47372 KB Output is correct
74 Correct 33 ms 47308 KB Output is correct
75 Correct 35 ms 47300 KB Output is correct
76 Correct 32 ms 47288 KB Output is correct
77 Correct 32 ms 47344 KB Output is correct
78 Correct 30 ms 47180 KB Output is correct
79 Correct 49 ms 49980 KB Output is correct
80 Correct 57 ms 49572 KB Output is correct
81 Correct 50 ms 52284 KB Output is correct
82 Correct 51 ms 53576 KB Output is correct
83 Correct 55 ms 53776 KB Output is correct
84 Correct 48 ms 49628 KB Output is correct
85 Correct 44 ms 49484 KB Output is correct
86 Correct 56 ms 55928 KB Output is correct
87 Correct 42 ms 48832 KB Output is correct
88 Correct 45 ms 49552 KB Output is correct
89 Correct 49 ms 49920 KB Output is correct
90 Correct 41 ms 49576 KB Output is correct
91 Correct 58 ms 50960 KB Output is correct
92 Correct 55 ms 49508 KB Output is correct
93 Correct 62 ms 54100 KB Output is correct
94 Correct 63 ms 50616 KB Output is correct
95 Correct 50 ms 49104 KB Output is correct
96 Correct 61 ms 54388 KB Output is correct
97 Correct 62 ms 55592 KB Output is correct
98 Correct 62 ms 53344 KB Output is correct
99 Correct 37 ms 47180 KB Output is correct
100 Correct 36 ms 47180 KB Output is correct
101 Correct 35 ms 47284 KB Output is correct
102 Correct 41 ms 47172 KB Output is correct
103 Correct 31 ms 47272 KB Output is correct
104 Correct 36 ms 47220 KB Output is correct
105 Correct 37 ms 47272 KB Output is correct
106 Correct 36 ms 47180 KB Output is correct
107 Correct 36 ms 47180 KB Output is correct
108 Correct 41 ms 47220 KB Output is correct
109 Correct 36 ms 47268 KB Output is correct
110 Correct 39 ms 47176 KB Output is correct
111 Correct 150 ms 62456 KB Output is correct
112 Correct 135 ms 59176 KB Output is correct
113 Correct 158 ms 64248 KB Output is correct
114 Correct 145 ms 63584 KB Output is correct
115 Correct 144 ms 63144 KB Output is correct
116 Correct 216 ms 105820 KB Output is correct
117 Correct 138 ms 64784 KB Output is correct
118 Correct 44 ms 47404 KB Output is correct
119 Correct 37 ms 47348 KB Output is correct
120 Correct 38 ms 47300 KB Output is correct
121 Correct 40 ms 47380 KB Output is correct
122 Correct 37 ms 47300 KB Output is correct
123 Correct 35 ms 47312 KB Output is correct
124 Correct 40 ms 47300 KB Output is correct
125 Correct 38 ms 47288 KB Output is correct
126 Correct 43 ms 47308 KB Output is correct
127 Correct 39 ms 47320 KB Output is correct
128 Correct 34 ms 47336 KB Output is correct
129 Correct 35 ms 47392 KB Output is correct
130 Correct 38 ms 47400 KB Output is correct
131 Correct 33 ms 47200 KB Output is correct
132 Correct 63 ms 49932 KB Output is correct
133 Correct 48 ms 49592 KB Output is correct
134 Correct 55 ms 52364 KB Output is correct
135 Correct 60 ms 53568 KB Output is correct
136 Correct 66 ms 53844 KB Output is correct
137 Correct 53 ms 49592 KB Output is correct
138 Correct 58 ms 49392 KB Output is correct
139 Correct 64 ms 55868 KB Output is correct
140 Correct 49 ms 48916 KB Output is correct
141 Correct 59 ms 49580 KB Output is correct
142 Correct 51 ms 49940 KB Output is correct
143 Correct 54 ms 49524 KB Output is correct
144 Correct 64 ms 50972 KB Output is correct
145 Correct 48 ms 49524 KB Output is correct
146 Correct 60 ms 54080 KB Output is correct
147 Correct 53 ms 50620 KB Output is correct
148 Correct 49 ms 49100 KB Output is correct
149 Correct 56 ms 54484 KB Output is correct
150 Correct 58 ms 55560 KB Output is correct
151 Correct 53 ms 53336 KB Output is correct
152 Correct 482 ms 107940 KB Output is correct
153 Correct 504 ms 112008 KB Output is correct
154 Correct 449 ms 104612 KB Output is correct
155 Correct 517 ms 144896 KB Output is correct
156 Correct 448 ms 112776 KB Output is correct
157 Correct 552 ms 93252 KB Output is correct
158 Correct 510 ms 123272 KB Output is correct
159 Correct 631 ms 223492 KB Output is correct
160 Correct 671 ms 207012 KB Output is correct
161 Correct 436 ms 89500 KB Output is correct
162 Correct 429 ms 93252 KB Output is correct