oj.uz

Submission #628537

# Submission time Handle Problem Language Result Execution time Memory
628537 2022-08-13T13:08:54 Z Abrar_Al_Samit Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 269 ms 33188 KB 
#include<bits/stdc++.h>
using namespace std;

const int MX = 203;
const int INF = 1e9+10;

int n, L;
int pos[MX], T[MX];
int dp[MX][MX][MX];

int dist(int i, int j) {
  int ret = abs(pos[i]-pos[j]);
  return min(ret, L-ret);
}
int solve(int i, int j, int k) {
  if(k==0) return dist(0, i);
  if(n-(abs(j-i)-1)<k) return INF;
  int &ret = dp[i][j][k];
  if(ret!=-1) return ret;

  ret = INF;
  if(i<=j) {
    if(i>1) {
      if(solve(i-1, j, k-1)+dist(i, i-1)<=T[i]) {
        ret = min(ret, solve(i-1, j, k-1)+dist(i, i-1));
      }
      if(solve(i-1, j, k)!=INF) {
        ret = min(ret, solve(i-1, j, k)+dist(i, i-1));
      }
    } else {
      if(j==n && dist(0, i)<=T[i] && k==1) {
        ret = min(ret, dist(0, i));
      } 
    }
    if(j+1<=n) {
      if(solve(j+1, i, k-1)+dist(j+1, i)<=T[i]) {
        ret = min(ret, solve(j+1, i, k-1)+dist(j+1, i));
      }
      if(solve(j+1, i, k)!=INF) {
        ret = min(ret, solve(j+1, i, k)+dist(j+1, i));
      }
    }
  } else {
    if(i+1<=n) {
      if(solve(i+1, j, k-1)+dist(i, i+1)<=T[i]) {
        ret = min(ret, solve(i+1, j, k-1)+dist(i, i+1));
      }
      if(solve(i+1, j, k)!=INF) {
        ret = min(ret, solve(i+1, j, k)+dist(i, i+1));
      }
    }
    if(j>1) {
      if(solve(j-1, i, k-1)+dist(i, j-1)<=T[i]) {
        ret = min(ret, solve(j-1, i, k-1)+dist(i, j-1));
      }
      if(solve(j-1, i, k)!=INF) {
        ret = min(ret, solve(j-1, i, k)+dist(i, j-1));
      }
    } else {
      if(i==n && dist(0, i)<=T[i] && k==1) {
        ret = min(ret, dist(0, i));
      }
    }
  }
  return ret;
}
void PlayGround() {
  cin>>n>>L;
  for(int i=1; i<=n; ++i) {
    cin>>pos[i];
  }
  for(int i=1; i<=n; ++i) {
    cin>>T[i];
  }

  memset(dp, -1, sizeof dp);
  int ans = 0;
  for(int i=1; i<=n; ++i) {
    for(int j=1; j<=n; ++j) {
      for(int k=1; k<=n; ++k) {
        if(solve(i, j, k)<INF) {
          ans = max(ans, k);
        }
      }
    }
  }
  cout<<ans<<'\n';
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  PlayGround();
  return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 33000 KB Output is correct
2 Correct 15 ms 32980 KB Output is correct
3 Correct 14 ms 33000 KB Output is correct
4 Correct 14 ms 32992 KB Output is correct
5 Correct 12 ms 32980 KB Output is correct
6 Correct 14 ms 33044 KB Output is correct
7 Correct 14 ms 32976 KB Output is correct
8 Correct 14 ms 33108 KB Output is correct
9 Correct 14 ms 32980 KB Output is correct
10 Correct 14 ms 32980 KB Output is correct
11 Correct 15 ms 33028 KB Output is correct
12 Correct 13 ms 32972 KB Output is correct
13 Correct 14 ms 33036 KB Output is correct
14 Correct 13 ms 32968 KB Output is correct
15 Correct 13 ms 32980 KB Output is correct
16 Correct 16 ms 33044 KB Output is correct
17 Correct 14 ms 32968 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 33000 KB Output is correct
2 Correct 15 ms 32980 KB Output is correct
3 Correct 14 ms 33000 KB Output is correct
4 Correct 14 ms 32992 KB Output is correct
5 Correct 12 ms 32980 KB Output is correct
6 Correct 14 ms 33044 KB Output is correct
7 Correct 14 ms 32976 KB Output is correct
8 Correct 14 ms 33108 KB Output is correct
9 Correct 14 ms 32980 KB Output is correct
10 Correct 14 ms 32980 KB Output is correct
11 Correct 15 ms 33028 KB Output is correct
12 Correct 13 ms 32972 KB Output is correct
13 Correct 14 ms 33036 KB Output is correct
14 Correct 13 ms 32968 KB Output is correct
15 Correct 13 ms 32980 KB Output is correct
16 Correct 16 ms 33044 KB Output is correct
17 Correct 14 ms 32968 KB Output is correct
18 Correct 14 ms 33040 KB Output is correct
19 Correct 14 ms 32980 KB Output is correct
20 Correct 14 ms 32980 KB Output is correct
21 Correct 13 ms 32964 KB Output is correct
22 Correct 17 ms 32980 KB Output is correct
23 Correct 14 ms 32964 KB Output is correct
24 Correct 13 ms 32980 KB Output is correct
25 Correct 14 ms 32980 KB Output is correct
26 Correct 13 ms 32980 KB Output is correct
27 Correct 13 ms 32964 KB Output is correct
28 Correct 13 ms 32964 KB Output is correct
29 Correct 13 ms 33064 KB Output is correct
30 Correct 17 ms 32952 KB Output is correct
31 Correct 14 ms 32980 KB Output is correct
32 Correct 14 ms 32980 KB Output is correct
33 Correct 14 ms 32980 KB Output is correct
34 Correct 13 ms 32980 KB Output is correct
35 Correct 14 ms 33048 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 33000 KB Output is correct
2 Correct 15 ms 32980 KB Output is correct
3 Correct 14 ms 33000 KB Output is correct
4 Correct 14 ms 32992 KB Output is correct
5 Correct 12 ms 32980 KB Output is correct
6 Correct 14 ms 33044 KB Output is correct
7 Correct 14 ms 32976 KB Output is correct
8 Correct 14 ms 33108 KB Output is correct
9 Correct 14 ms 32980 KB Output is correct
10 Correct 14 ms 32980 KB Output is correct
11 Correct 15 ms 33028 KB Output is correct
12 Correct 13 ms 32972 KB Output is correct
13 Correct 14 ms 33036 KB Output is correct
14 Correct 13 ms 32968 KB Output is correct
15 Correct 13 ms 32980 KB Output is correct
16 Correct 16 ms 33044 KB Output is correct
17 Correct 14 ms 32968 KB Output is correct
18 Correct 161 ms 33056 KB Output is correct
19 Correct 95 ms 33048 KB Output is correct
20 Correct 44 ms 32944 KB Output is correct
21 Correct 85 ms 33000 KB Output is correct
22 Correct 122 ms 33052 KB Output is correct
23 Correct 41 ms 32980 KB Output is correct
24 Correct 27 ms 32980 KB Output is correct
25 Correct 40 ms 33044 KB Output is correct
26 Correct 18 ms 32948 KB Output is correct
27 Correct 42 ms 32988 KB Output is correct
28 Correct 25 ms 32980 KB Output is correct
29 Correct 40 ms 32980 KB Output is correct
30 Correct 28 ms 33052 KB Output is correct
31 Correct 37 ms 33060 KB Output is correct
32 Correct 21 ms 33004 KB Output is correct
33 Correct 38 ms 32936 KB Output is correct
34 Correct 17 ms 33020 KB Output is correct
35 Correct 30 ms 32980 KB Output is correct
36 Correct 21 ms 33028 KB Output is correct
37 Correct 31 ms 32980 KB Output is correct
38 Correct 26 ms 33080 KB Output is correct
39 Correct 32 ms 32980 KB Output is correct
40 Correct 22 ms 32980 KB Output is correct
41 Correct 254 ms 33064 KB Output is correct
42 Correct 90 ms 33068 KB Output is correct
43 Correct 245 ms 33060 KB Output is correct
44 Correct 93 ms 33068 KB Output is correct
45 Correct 247 ms 33032 KB Output is correct
46 Correct 91 ms 33052 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 33000 KB Output is correct
2 Correct 15 ms 32980 KB Output is correct
3 Correct 14 ms 33000 KB Output is correct
4 Correct 14 ms 32992 KB Output is correct
5 Correct 12 ms 32980 KB Output is correct
6 Correct 14 ms 33044 KB Output is correct
7 Correct 14 ms 32976 KB Output is correct
8 Correct 14 ms 33108 KB Output is correct
9 Correct 14 ms 32980 KB Output is correct
10 Correct 14 ms 32980 KB Output is correct
11 Correct 15 ms 33028 KB Output is correct
12 Correct 13 ms 32972 KB Output is correct
13 Correct 14 ms 33036 KB Output is correct
14 Correct 13 ms 32968 KB Output is correct
15 Correct 13 ms 32980 KB Output is correct
16 Correct 16 ms 33044 KB Output is correct
17 Correct 14 ms 32968 KB Output is correct
18 Correct 14 ms 33040 KB Output is correct
19 Correct 14 ms 32980 KB Output is correct
20 Correct 14 ms 32980 KB Output is correct
21 Correct 13 ms 32964 KB Output is correct
22 Correct 17 ms 32980 KB Output is correct
23 Correct 14 ms 32964 KB Output is correct
24 Correct 13 ms 32980 KB Output is correct
25 Correct 14 ms 32980 KB Output is correct
26 Correct 13 ms 32980 KB Output is correct
27 Correct 13 ms 32964 KB Output is correct
28 Correct 13 ms 32964 KB Output is correct
29 Correct 13 ms 33064 KB Output is correct
30 Correct 17 ms 32952 KB Output is correct
31 Correct 14 ms 32980 KB Output is correct
32 Correct 14 ms 32980 KB Output is correct
33 Correct 14 ms 32980 KB Output is correct
34 Correct 13 ms 32980 KB Output is correct
35 Correct 14 ms 33048 KB Output is correct
36 Correct 161 ms 33056 KB Output is correct
37 Correct 95 ms 33048 KB Output is correct
38 Correct 44 ms 32944 KB Output is correct
39 Correct 85 ms 33000 KB Output is correct
40 Correct 122 ms 33052 KB Output is correct
41 Correct 41 ms 32980 KB Output is correct
42 Correct 27 ms 32980 KB Output is correct
43 Correct 40 ms 33044 KB Output is correct
44 Correct 18 ms 32948 KB Output is correct
45 Correct 42 ms 32988 KB Output is correct
46 Correct 25 ms 32980 KB Output is correct
47 Correct 40 ms 32980 KB Output is correct
48 Correct 28 ms 33052 KB Output is correct
49 Correct 37 ms 33060 KB Output is correct
50 Correct 21 ms 33004 KB Output is correct
51 Correct 38 ms 32936 KB Output is correct
52 Correct 17 ms 33020 KB Output is correct
53 Correct 30 ms 32980 KB Output is correct
54 Correct 21 ms 33028 KB Output is correct
55 Correct 31 ms 32980 KB Output is correct
56 Correct 26 ms 33080 KB Output is correct
57 Correct 32 ms 32980 KB Output is correct
58 Correct 22 ms 32980 KB Output is correct
59 Correct 254 ms 33064 KB Output is correct
60 Correct 90 ms 33068 KB Output is correct
61 Correct 245 ms 33060 KB Output is correct
62 Correct 93 ms 33068 KB Output is correct
63 Correct 247 ms 33032 KB Output is correct
64 Correct 91 ms 33052 KB Output is correct
65 Correct 192 ms 33064 KB Output is correct
66 Correct 177 ms 33064 KB Output is correct
67 Correct 169 ms 33064 KB Output is correct
68 Correct 138 ms 33060 KB Output is correct
69 Correct 197 ms 33060 KB Output is correct
70 Correct 224 ms 33064 KB Output is correct
71 Correct 159 ms 33060 KB Output is correct
72 Correct 233 ms 33064 KB Output is correct
73 Correct 141 ms 33064 KB Output is correct
74 Correct 190 ms 33120 KB Output is correct
75 Correct 152 ms 33064 KB Output is correct
76 Correct 258 ms 33068 KB Output is correct
77 Correct 187 ms 33064 KB Output is correct
78 Correct 172 ms 32980 KB Output is correct
79 Correct 145 ms 33064 KB Output is correct
80 Correct 246 ms 32968 KB Output is correct
81 Correct 136 ms 33064 KB Output is correct
82 Correct 151 ms 33060 KB Output is correct
83 Correct 203 ms 33064 KB Output is correct
84 Correct 161 ms 33188 KB Output is correct
85 Correct 170 ms 33064 KB Output is correct
86 Correct 178 ms 32980 KB Output is correct
87 Correct 166 ms 32952 KB Output is correct
88 Correct 269 ms 33060 KB Output is correct
89 Correct 267 ms 33064 KB Output is correct
90 Correct 130 ms 32980 KB Output is correct
91 Correct 265 ms 32980 KB Output is correct
92 Correct 249 ms 32980 KB Output is correct
93 Correct 152 ms 32980 KB Output is correct