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Submission #230968

# Submission time Handle Problem Language Result Execution time Memory
230968 2020-05-12T08:17:28 Z AlexLuchianov Collecting Stamps 3 (JOI20_ho_t3) C++14
15 / 100
 1087 ms 978700 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cassert>

using namespace std;

using ll = long long;
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) < (b)) ? (b) : (a))

int const nmax = 200;
ll const inf = 2000000000;

ll v[5 + nmax], t[5 + nmax];
ll dp[5 + 2 * nmax][5 + 2 * nmax][5 + nmax][2];

int n;

ll extract(int x, int y, int val, int h){
  if(val < 0)
    return inf;
  else
    return dp[x][y][val][h];
}

ll dist(int x, int y){
  return fabs(v[x] - v[y]);
}

void update(ll &number, ll val){
  number = min(number, val);
}

int main()
{
  int l;
  cin >> n >> l;
  for(int i = 1;i <= n; i++)
    cin >> v[i];
  for(int i = 1;i <= n; i++)
    cin >> t[i];
  for(int i = 1;i <= n; i++) {
    v[n + i] = v[i] + l;
    t[n + i] = t[i];
  }

  for(int i = 0;i <= nmax * 2; i++)
    for(int j = 0; j <= nmax * 2; j++)
      for(int h = 0; h <= nmax; h++)
        dp[i][j][h][0] = dp[i][j][h][1] = inf;

  dp[n][n][(abs(l - v[n]) <= t[n])][0] = fabs(l - v[n]);
  dp[n + 1][n + 1][(abs(l - v[n + 1]) <= t[n + 1])][0] = fabs(l - v[n + 1]);

  int result = 0;

  for(int dif = 0; dif < n; dif++)
    for(int i = 1;i <= 2 * n; i++){
      int j = i + dif;
      if(j <= 2 * n){
        for(int k = 0; k <= dif + 1; k++){

          ll time = dp[i][j][k][0] + dist(i - 1, i);
          update(dp[i - 1][j][k + (time <= t[i - 1])][0], time);

          time = dp[i][j][k][1] + dist(i - 1, j);
          update(dp[i - 1][j][k + (time <= t[i - 1])][0], time);

          time = dp[i][j][k][0] + dist(j + 1, i);
          update(dp[i][j + 1][k + (time <= t[j + 1])][1], time);

          time = dp[i][j][k][1] + dist(j + 1, j);
          update(dp[i][j + 1][k + (time <= t[j + 1])][1], time);

          if(dp[i][j][k][0] <= inf - 5 || dp[i][j][k][1] <= inf - 5)
            result = max(result, k);

        }
      }
    }
  cout << result;
  return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 338 ms 518048 KB Output is correct
2 Correct 248 ms 518136 KB Output is correct
3 Correct 243 ms 518008 KB Output is correct
4 Correct 248 ms 518008 KB Output is correct
5 Correct 244 ms 518008 KB Output is correct
6 Correct 241 ms 518008 KB Output is correct
7 Correct 249 ms 518012 KB Output is correct
8 Correct 243 ms 518008 KB Output is correct
9 Correct 247 ms 518008 KB Output is correct
10 Correct 250 ms 518008 KB Output is correct
11 Correct 246 ms 518008 KB Output is correct
12 Correct 240 ms 518016 KB Output is correct
13 Correct 243 ms 518012 KB Output is correct
14 Correct 246 ms 518008 KB Output is correct
15 Correct 244 ms 518008 KB Output is correct
16 Correct 242 ms 518012 KB Output is correct
17 Correct 244 ms 518008 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 338 ms 518048 KB Output is correct
2 Correct 248 ms 518136 KB Output is correct
3 Correct 243 ms 518008 KB Output is correct
4 Correct 248 ms 518008 KB Output is correct
5 Correct 244 ms 518008 KB Output is correct
6 Correct 241 ms 518008 KB Output is correct
7 Correct 249 ms 518012 KB Output is correct
8 Correct 243 ms 518008 KB Output is correct
9 Correct 247 ms 518008 KB Output is correct
10 Correct 250 ms 518008 KB Output is correct
11 Correct 246 ms 518008 KB Output is correct
12 Correct 240 ms 518016 KB Output is correct
13 Correct 243 ms 518012 KB Output is correct
14 Correct 246 ms 518008 KB Output is correct
15 Correct 244 ms 518008 KB Output is correct
16 Correct 242 ms 518012 KB Output is correct
17 Correct 244 ms 518008 KB Output is correct
18 Correct 253 ms 517968 KB Output is correct
19 Correct 246 ms 518008 KB Output is correct
20 Correct 242 ms 518008 KB Output is correct
21 Correct 247 ms 518076 KB Output is correct
22 Correct 245 ms 518008 KB Output is correct
23 Correct 242 ms 518008 KB Output is correct
24 Correct 242 ms 518008 KB Output is correct
25 Correct 240 ms 518012 KB Output is correct
26 Correct 246 ms 518008 KB Output is correct
27 Correct 252 ms 518008 KB Output is correct
28 Correct 242 ms 518008 KB Output is correct
29 Correct 245 ms 518008 KB Output is correct
30 Correct 250 ms 518008 KB Output is correct
31 Correct 249 ms 518008 KB Output is correct
32 Correct 249 ms 518008 KB Output is correct
33 Correct 242 ms 518008 KB Output is correct
34 Correct 246 ms 518008 KB Output is correct
35 Correct 246 ms 518008 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 338 ms 518048 KB Output is correct
2 Correct 248 ms 518136 KB Output is correct
3 Correct 243 ms 518008 KB Output is correct
4 Correct 248 ms 518008 KB Output is correct
5 Correct 244 ms 518008 KB Output is correct
6 Correct 241 ms 518008 KB Output is correct
7 Correct 249 ms 518012 KB Output is correct
8 Correct 243 ms 518008 KB Output is correct
9 Correct 247 ms 518008 KB Output is correct
10 Correct 250 ms 518008 KB Output is correct
11 Correct 246 ms 518008 KB Output is correct
12 Correct 240 ms 518016 KB Output is correct
13 Correct 243 ms 518012 KB Output is correct
14 Correct 246 ms 518008 KB Output is correct
15 Correct 244 ms 518008 KB Output is correct
16 Correct 242 ms 518012 KB Output is correct
17 Correct 244 ms 518008 KB Output is correct
18 Runtime error 1087 ms 978700 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 338 ms 518048 KB Output is correct
2 Correct 248 ms 518136 KB Output is correct
3 Correct 243 ms 518008 KB Output is correct
4 Correct 248 ms 518008 KB Output is correct
5 Correct 244 ms 518008 KB Output is correct
6 Correct 241 ms 518008 KB Output is correct
7 Correct 249 ms 518012 KB Output is correct
8 Correct 243 ms 518008 KB Output is correct
9 Correct 247 ms 518008 KB Output is correct
10 Correct 250 ms 518008 KB Output is correct
11 Correct 246 ms 518008 KB Output is correct
12 Correct 240 ms 518016 KB Output is correct
13 Correct 243 ms 518012 KB Output is correct
14 Correct 246 ms 518008 KB Output is correct
15 Correct 244 ms 518008 KB Output is correct
16 Correct 242 ms 518012 KB Output is correct
17 Correct 244 ms 518008 KB Output is correct
18 Correct 253 ms 517968 KB Output is correct
19 Correct 246 ms 518008 KB Output is correct
20 Correct 242 ms 518008 KB Output is correct
21 Correct 247 ms 518076 KB Output is correct
22 Correct 245 ms 518008 KB Output is correct
23 Correct 242 ms 518008 KB Output is correct
24 Correct 242 ms 518008 KB Output is correct
25 Correct 240 ms 518012 KB Output is correct
26 Correct 246 ms 518008 KB Output is correct
27 Correct 252 ms 518008 KB Output is correct
28 Correct 242 ms 518008 KB Output is correct
29 Correct 245 ms 518008 KB Output is correct
30 Correct 250 ms 518008 KB Output is correct
31 Correct 249 ms 518008 KB Output is correct
32 Correct 249 ms 518008 KB Output is correct
33 Correct 242 ms 518008 KB Output is correct
34 Correct 246 ms 518008 KB Output is correct
35 Correct 246 ms 518008 KB Output is correct
36 Runtime error 1087 ms 978700 KB Execution killed with signal 11 (could be triggered by violating memory limits)
37 Halted 0 ms 0 KB -