oj.uz

Submission #444011

# Submission time Handle Problem Language Result Execution time Memory
444011 2021-07-13T00:33:23 Z yungyao The short shank; Redemption (BOI21_prison) C++17
100 / 100
 1375 ms 277788 KB 
using namespace std;
#include <iostream>
#include <algorithm>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <utility>
#include <vector>
#include <memory.h>
#include <deque>

typedef long long LL;
typedef pair<int,int> pii;
#define l first
#define r second
#define mkp make_pair
#define iter(x) x.begin(),x.end()
#define MEM(s,e) memset(s,e,sizeof(s))

const int maxn = 2e6+200;

int s[maxn];
vector <int> tree[maxn];

struct node{
    pii iv;
    int idx;
    node (pii iv,int i): iv(iv), idx(i) {}
};

vector <int> val;
int dfs(int x){
    vector <int> ret;
    for (auto i:tree[x]){
        ret.push_back(dfs(i));
    }
    sort(iter(ret),[](int a,int b){return a > b;});
    for (int i=1;i<ret.size();++i) val.push_back(ret[i]);
    return 1 + (ret.empty() ? 0 : ret[0]);
}

int main(){
    int n,d,t;
    stack <pii> sk;
    vector <pii> iv;

    cin >> n >> d >> t;
    int ans = n;
    for (int i=1;i<=n;++i){
        if (sk.size() and sk.top().r < i) sk.pop();
        cin >> s[i];
        if (s[i] > t){
            if (sk.empty())
                --ans;
            else
                iv.push_back(mkp(sk.top().l,i));
        }

        if (s[i] < t){
            pii x = mkp(i,i + t - s[i]);
            while (sk.size() and x.r >= sk.top().r) sk.pop();
            sk.push(x);
        }
    }

    sort (iter(iv),[](pii a,pii b){return a.l != b.l ? a.l < b.l : a.r > b.r;});

    stack <node> dfss;
    vector <int> roots;
    for (int i=0;i<iv.size();++i){
        while (dfss.size() and iv[i].l > dfss.top().iv.r) dfss.pop();

        if (dfss.empty()) roots.push_back(i);
        else tree[dfss.top().idx].push_back(i);
        dfss.push(node(iv[i],i));
    }

    for (auto i:roots){
        val.push_back(dfs(i));
    }
    sort (iter(val),[](int a,int b){return a > b;});

    for (int i=0;i<min(d,int(val.size()));++i) ans -= val[i];
    cout << ans;

    return 0;
}

Compilation message

prison.cpp: In function 'int dfs(int)':
prison.cpp:39:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for (int i=1;i<ret.size();++i) val.push_back(ret[i]);
      |                  ~^~~~~~~~~~~
prison.cpp: In function 'int main()':
prison.cpp:71:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     for (int i=0;i<iv.size();++i){
      |                  ~^~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47180 KB Output is correct
2 Correct 30 ms 47184 KB Output is correct
3 Correct 29 ms 47208 KB Output is correct
4 Correct 30 ms 47276 KB Output is correct
5 Correct 30 ms 47280 KB Output is correct
6 Correct 30 ms 47296 KB Output is correct
7 Correct 29 ms 47180 KB Output is correct
8 Correct 31 ms 47180 KB Output is correct
9 Correct 30 ms 47172 KB Output is correct
10 Correct 29 ms 47172 KB Output is correct
11 Correct 31 ms 47284 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47172 KB Output is correct
2 Correct 309 ms 61376 KB Output is correct
3 Correct 294 ms 58516 KB Output is correct
4 Correct 263 ms 63656 KB Output is correct
5 Correct 214 ms 62356 KB Output is correct
6 Correct 279 ms 63664 KB Output is correct
7 Correct 360 ms 125420 KB Output is correct
8 Correct 299 ms 65484 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47180 KB Output is correct
2 Correct 30 ms 47184 KB Output is correct
3 Correct 29 ms 47208 KB Output is correct
4 Correct 30 ms 47276 KB Output is correct
5 Correct 30 ms 47280 KB Output is correct
6 Correct 30 ms 47296 KB Output is correct
7 Correct 29 ms 47180 KB Output is correct
8 Correct 31 ms 47180 KB Output is correct
9 Correct 30 ms 47172 KB Output is correct
10 Correct 29 ms 47172 KB Output is correct
11 Correct 31 ms 47284 KB Output is correct
12 Correct 32 ms 47244 KB Output is correct
13 Correct 28 ms 47180 KB Output is correct
14 Correct 30 ms 47372 KB Output is correct
15 Correct 29 ms 47224 KB Output is correct
16 Correct 31 ms 47272 KB Output is correct
17 Correct 30 ms 47180 KB Output is correct
18 Correct 29 ms 47172 KB Output is correct
19 Correct 29 ms 47272 KB Output is correct
20 Correct 30 ms 47392 KB Output is correct
21 Correct 29 ms 47240 KB Output is correct
22 Correct 34 ms 47172 KB Output is correct
23 Correct 33 ms 47308 KB Output is correct
24 Correct 31 ms 47308 KB Output is correct
25 Correct 31 ms 47396 KB Output is correct
26 Correct 30 ms 47308 KB Output is correct
27 Correct 33 ms 47340 KB Output is correct
28 Correct 32 ms 47360 KB Output is correct
29 Correct 33 ms 47320 KB Output is correct
30 Correct 31 ms 47324 KB Output is correct
31 Correct 31 ms 47300 KB Output is correct
32 Correct 30 ms 47316 KB Output is correct
33 Correct 31 ms 47268 KB Output is correct
34 Correct 31 ms 47308 KB Output is correct
35 Correct 32 ms 47416 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 47180 KB Output is correct
2 Correct 71 ms 49800 KB Output is correct
3 Correct 71 ms 49412 KB Output is correct
4 Correct 67 ms 53480 KB Output is correct
5 Correct 76 ms 55620 KB Output is correct
6 Correct 78 ms 55692 KB Output is correct
7 Correct 69 ms 49844 KB Output is correct
8 Correct 64 ms 49576 KB Output is correct
9 Correct 74 ms 58920 KB Output is correct
10 Correct 61 ms 48892 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47180 KB Output is correct
2 Correct 30 ms 47184 KB Output is correct
3 Correct 29 ms 47208 KB Output is correct
4 Correct 30 ms 47276 KB Output is correct
5 Correct 30 ms 47280 KB Output is correct
6 Correct 30 ms 47296 KB Output is correct
7 Correct 29 ms 47180 KB Output is correct
8 Correct 31 ms 47180 KB Output is correct
9 Correct 30 ms 47172 KB Output is correct
10 Correct 29 ms 47172 KB Output is correct
11 Correct 31 ms 47284 KB Output is correct
12 Correct 32 ms 47244 KB Output is correct
13 Correct 28 ms 47180 KB Output is correct
14 Correct 30 ms 47372 KB Output is correct
15 Correct 29 ms 47224 KB Output is correct
16 Correct 31 ms 47272 KB Output is correct
17 Correct 30 ms 47180 KB Output is correct
18 Correct 29 ms 47172 KB Output is correct
19 Correct 29 ms 47272 KB Output is correct
20 Correct 30 ms 47392 KB Output is correct
21 Correct 29 ms 47240 KB Output is correct
22 Correct 34 ms 47172 KB Output is correct
23 Correct 33 ms 47308 KB Output is correct
24 Correct 31 ms 47308 KB Output is correct
25 Correct 31 ms 47396 KB Output is correct
26 Correct 30 ms 47308 KB Output is correct
27 Correct 33 ms 47340 KB Output is correct
28 Correct 32 ms 47360 KB Output is correct
29 Correct 33 ms 47320 KB Output is correct
30 Correct 31 ms 47324 KB Output is correct
31 Correct 31 ms 47300 KB Output is correct
32 Correct 30 ms 47316 KB Output is correct
33 Correct 31 ms 47268 KB Output is correct
34 Correct 31 ms 47308 KB Output is correct
35 Correct 32 ms 47416 KB Output is correct
36 Correct 31 ms 47180 KB Output is correct
37 Correct 71 ms 49800 KB Output is correct
38 Correct 71 ms 49412 KB Output is correct
39 Correct 67 ms 53480 KB Output is correct
40 Correct 76 ms 55620 KB Output is correct
41 Correct 78 ms 55692 KB Output is correct
42 Correct 69 ms 49844 KB Output is correct
43 Correct 64 ms 49576 KB Output is correct
44 Correct 74 ms 58920 KB Output is correct
45 Correct 61 ms 48892 KB Output is correct
46 Correct 29 ms 47244 KB Output is correct
47 Correct 29 ms 47336 KB Output is correct
48 Correct 29 ms 47204 KB Output is correct
49 Correct 30 ms 47236 KB Output is correct
50 Correct 30 ms 47196 KB Output is correct
51 Correct 30 ms 47276 KB Output is correct
52 Correct 30 ms 47248 KB Output is correct
53 Correct 34 ms 47220 KB Output is correct
54 Correct 31 ms 47264 KB Output is correct
55 Correct 30 ms 47268 KB Output is correct
56 Correct 30 ms 47152 KB Output is correct
57 Correct 32 ms 47328 KB Output is correct
58 Correct 35 ms 47348 KB Output is correct
59 Correct 31 ms 47360 KB Output is correct
60 Correct 32 ms 47332 KB Output is correct
61 Correct 31 ms 47308 KB Output is correct
62 Correct 32 ms 47388 KB Output is correct
63 Correct 32 ms 47400 KB Output is correct
64 Correct 31 ms 47324 KB Output is correct
65 Correct 31 ms 47300 KB Output is correct
66 Correct 31 ms 47340 KB Output is correct
67 Correct 33 ms 47244 KB Output is correct
68 Correct 32 ms 47360 KB Output is correct
69 Correct 32 ms 47340 KB Output is correct
70 Correct 28 ms 47180 KB Output is correct
71 Correct 71 ms 49752 KB Output is correct
72 Correct 71 ms 49456 KB Output is correct
73 Correct 67 ms 53536 KB Output is correct
74 Correct 77 ms 55624 KB Output is correct
75 Correct 77 ms 55740 KB Output is correct
76 Correct 62 ms 49784 KB Output is correct
77 Correct 64 ms 49588 KB Output is correct
78 Correct 72 ms 58876 KB Output is correct
79 Correct 61 ms 48812 KB Output is correct
80 Correct 71 ms 49464 KB Output is correct
81 Correct 72 ms 49724 KB Output is correct
82 Correct 71 ms 49448 KB Output is correct
83 Correct 67 ms 51332 KB Output is correct
84 Correct 54 ms 49344 KB Output is correct
85 Correct 79 ms 55900 KB Output is correct
86 Correct 64 ms 50976 KB Output is correct
87 Correct 75 ms 49012 KB Output is correct
88 Correct 76 ms 56804 KB Output is correct
89 Correct 71 ms 58300 KB Output is correct
90 Correct 72 ms 55204 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47180 KB Output is correct
2 Correct 30 ms 47184 KB Output is correct
3 Correct 29 ms 47208 KB Output is correct
4 Correct 30 ms 47276 KB Output is correct
5 Correct 30 ms 47280 KB Output is correct
6 Correct 30 ms 47296 KB Output is correct
7 Correct 29 ms 47180 KB Output is correct
8 Correct 31 ms 47180 KB Output is correct
9 Correct 30 ms 47172 KB Output is correct
10 Correct 29 ms 47172 KB Output is correct
11 Correct 31 ms 47284 KB Output is correct
12 Correct 29 ms 47172 KB Output is correct
13 Correct 309 ms 61376 KB Output is correct
14 Correct 294 ms 58516 KB Output is correct
15 Correct 263 ms 63656 KB Output is correct
16 Correct 214 ms 62356 KB Output is correct
17 Correct 279 ms 63664 KB Output is correct
18 Correct 360 ms 125420 KB Output is correct
19 Correct 299 ms 65484 KB Output is correct
20 Correct 32 ms 47244 KB Output is correct
21 Correct 28 ms 47180 KB Output is correct
22 Correct 30 ms 47372 KB Output is correct
23 Correct 29 ms 47224 KB Output is correct
24 Correct 31 ms 47272 KB Output is correct
25 Correct 30 ms 47180 KB Output is correct
26 Correct 29 ms 47172 KB Output is correct
27 Correct 29 ms 47272 KB Output is correct
28 Correct 30 ms 47392 KB Output is correct
29 Correct 29 ms 47240 KB Output is correct
30 Correct 34 ms 47172 KB Output is correct
31 Correct 33 ms 47308 KB Output is correct
32 Correct 31 ms 47308 KB Output is correct
33 Correct 31 ms 47396 KB Output is correct
34 Correct 30 ms 47308 KB Output is correct
35 Correct 33 ms 47340 KB Output is correct
36 Correct 32 ms 47360 KB Output is correct
37 Correct 33 ms 47320 KB Output is correct
38 Correct 31 ms 47324 KB Output is correct
39 Correct 31 ms 47300 KB Output is correct
40 Correct 30 ms 47316 KB Output is correct
41 Correct 31 ms 47268 KB Output is correct
42 Correct 31 ms 47308 KB Output is correct
43 Correct 32 ms 47416 KB Output is correct
44 Correct 31 ms 47180 KB Output is correct
45 Correct 71 ms 49800 KB Output is correct
46 Correct 71 ms 49412 KB Output is correct
47 Correct 67 ms 53480 KB Output is correct
48 Correct 76 ms 55620 KB Output is correct
49 Correct 78 ms 55692 KB Output is correct
50 Correct 69 ms 49844 KB Output is correct
51 Correct 64 ms 49576 KB Output is correct
52 Correct 74 ms 58920 KB Output is correct
53 Correct 61 ms 48892 KB Output is correct
54 Correct 29 ms 47244 KB Output is correct
55 Correct 29 ms 47336 KB Output is correct
56 Correct 29 ms 47204 KB Output is correct
57 Correct 30 ms 47236 KB Output is correct
58 Correct 30 ms 47196 KB Output is correct
59 Correct 30 ms 47276 KB Output is correct
60 Correct 30 ms 47248 KB Output is correct
61 Correct 34 ms 47220 KB Output is correct
62 Correct 31 ms 47264 KB Output is correct
63 Correct 30 ms 47268 KB Output is correct
64 Correct 30 ms 47152 KB Output is correct
65 Correct 32 ms 47328 KB Output is correct
66 Correct 35 ms 47348 KB Output is correct
67 Correct 31 ms 47360 KB Output is correct
68 Correct 32 ms 47332 KB Output is correct
69 Correct 31 ms 47308 KB Output is correct
70 Correct 32 ms 47388 KB Output is correct
71 Correct 32 ms 47400 KB Output is correct
72 Correct 31 ms 47324 KB Output is correct
73 Correct 31 ms 47300 KB Output is correct
74 Correct 31 ms 47340 KB Output is correct
75 Correct 33 ms 47244 KB Output is correct
76 Correct 32 ms 47360 KB Output is correct
77 Correct 32 ms 47340 KB Output is correct
78 Correct 28 ms 47180 KB Output is correct
79 Correct 71 ms 49752 KB Output is correct
80 Correct 71 ms 49456 KB Output is correct
81 Correct 67 ms 53536 KB Output is correct
82 Correct 77 ms 55624 KB Output is correct
83 Correct 77 ms 55740 KB Output is correct
84 Correct 62 ms 49784 KB Output is correct
85 Correct 64 ms 49588 KB Output is correct
86 Correct 72 ms 58876 KB Output is correct
87 Correct 61 ms 48812 KB Output is correct
88 Correct 71 ms 49464 KB Output is correct
89 Correct 72 ms 49724 KB Output is correct
90 Correct 71 ms 49448 KB Output is correct
91 Correct 67 ms 51332 KB Output is correct
92 Correct 54 ms 49344 KB Output is correct
93 Correct 79 ms 55900 KB Output is correct
94 Correct 64 ms 50976 KB Output is correct
95 Correct 75 ms 49012 KB Output is correct
96 Correct 76 ms 56804 KB Output is correct
97 Correct 71 ms 58300 KB Output is correct
98 Correct 72 ms 55204 KB Output is correct
99 Correct 29 ms 47180 KB Output is correct
100 Correct 29 ms 47268 KB Output is correct
101 Correct 31 ms 47208 KB Output is correct
102 Correct 30 ms 47308 KB Output is correct
103 Correct 30 ms 47276 KB Output is correct
104 Correct 30 ms 47284 KB Output is correct
105 Correct 30 ms 47188 KB Output is correct
106 Correct 29 ms 47180 KB Output is correct
107 Correct 30 ms 47228 KB Output is correct
108 Correct 30 ms 47164 KB Output is correct
109 Correct 31 ms 47256 KB Output is correct
110 Correct 31 ms 47180 KB Output is correct
111 Correct 308 ms 61444 KB Output is correct
112 Correct 294 ms 58540 KB Output is correct
113 Correct 266 ms 63720 KB Output is correct
114 Correct 219 ms 62360 KB Output is correct
115 Correct 268 ms 63664 KB Output is correct
116 Correct 342 ms 125548 KB Output is correct
117 Correct 280 ms 65360 KB Output is correct
118 Correct 32 ms 47424 KB Output is correct
119 Correct 33 ms 47336 KB Output is correct
120 Correct 32 ms 47308 KB Output is correct
121 Correct 32 ms 47440 KB Output is correct
122 Correct 32 ms 47424 KB Output is correct
123 Correct 33 ms 47308 KB Output is correct
124 Correct 32 ms 47292 KB Output is correct
125 Correct 34 ms 47296 KB Output is correct
126 Correct 38 ms 47308 KB Output is correct
127 Correct 32 ms 47308 KB Output is correct
128 Correct 34 ms 47384 KB Output is correct
129 Correct 33 ms 47324 KB Output is correct
130 Correct 32 ms 47404 KB Output is correct
131 Correct 31 ms 47180 KB Output is correct
132 Correct 72 ms 49876 KB Output is correct
133 Correct 72 ms 49400 KB Output is correct
134 Correct 68 ms 53540 KB Output is correct
135 Correct 76 ms 55612 KB Output is correct
136 Correct 77 ms 55696 KB Output is correct
137 Correct 66 ms 49880 KB Output is correct
138 Correct 73 ms 49472 KB Output is correct
139 Correct 80 ms 58932 KB Output is correct
140 Correct 61 ms 48928 KB Output is correct
141 Correct 72 ms 49440 KB Output is correct
142 Correct 80 ms 49724 KB Output is correct
143 Correct 73 ms 49412 KB Output is correct
144 Correct 68 ms 51304 KB Output is correct
145 Correct 57 ms 49340 KB Output is correct
146 Correct 80 ms 55900 KB Output is correct
147 Correct 65 ms 50852 KB Output is correct
148 Correct 62 ms 49072 KB Output is correct
149 Correct 75 ms 56764 KB Output is correct
150 Correct 72 ms 58416 KB Output is correct
151 Correct 72 ms 55204 KB Output is correct
152 Correct 1144 ms 104188 KB Output is correct
153 Correct 1215 ms 107788 KB Output is correct
154 Correct 1107 ms 100928 KB Output is correct
155 Correct 1080 ms 152784 KB Output is correct
156 Correct 804 ms 107620 KB Output is correct
157 Correct 985 ms 91880 KB Output is correct
158 Correct 1085 ms 129388 KB Output is correct
159 Correct 1375 ms 277788 KB Output is correct
160 Correct 1345 ms 252832 KB Output is correct
161 Correct 962 ms 89152 KB Output is correct
162 Correct 1008 ms 92896 KB Output is correct