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Submission #230160

# Submission time Handle Problem Language Result Execution time Memory
230160 2020-05-08T19:03:14 Z Haunted_Cpp Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 882 ms 87160 KB 
#include <iostream>

using namespace std;

const int N = 3e3 + 5;

int dp_orb [N][N];
int dp_ingot [N][N];

char g [N][N];

int main () {
  int r, c;
  cin >> r >> c;
  for (int i = 0; i < r; i++) {
    for (int j = 0; j < c; j++) {
      cin >> g[i][j];
    }
  }
  for (int i = 0; i < r; i++) {
    for (int j = c - 1; j >= 0; j--) {
      dp_orb[i][j] = (g[i][j] == 'O');
      if (j < c - 1) dp_orb[i][j] += dp_orb[i][j + 1];
    }
  }
  for (int i = 0; i < c; i++) {
    for (int j = r - 1; j >= 0; j--) {
      dp_ingot[i][j] = (g[j][i] == 'I');
      if (j < r - 1) dp_ingot[i][j] += dp_ingot[i][j + 1];
    }
  }
  long long res = 0;
  for (int i = 0; i < r; i++) {
    for (int j = 0; j < c; j++) {
      if (g[i][j] != 'J') continue;
      int tot_orb = (j + 1 < c ? dp_orb[i][j + 1] : 0);
      int tot_ingot = (i + 1 < r ? dp_ingot[j][i + 1] : 0);
      res += tot_orb * tot_ingot;
    }
  }
  cout << res << '\n';
  return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 6 ms 1536 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 6 ms 1408 KB Output is correct
8 Correct 7 ms 1536 KB Output is correct
9 Correct 6 ms 1408 KB Output is correct
10 Correct 6 ms 1408 KB Output is correct
11 Correct 6 ms 1408 KB Output is correct
12 Correct 6 ms 1408 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 6 ms 1536 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 6 ms 1408 KB Output is correct
8 Correct 7 ms 1536 KB Output is correct
9 Correct 6 ms 1408 KB Output is correct
10 Correct 6 ms 1408 KB Output is correct
11 Correct 6 ms 1408 KB Output is correct
12 Correct 6 ms 1408 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct
14 Correct 25 ms 7068 KB Output is correct
15 Correct 6 ms 3324 KB Output is correct
16 Correct 18 ms 5248 KB Output is correct
17 Correct 5 ms 1536 KB Output is correct
18 Correct 30 ms 8060 KB Output is correct
19 Correct 29 ms 7808 KB Output is correct
20 Correct 29 ms 7936 KB Output is correct
21 Correct 30 ms 8064 KB Output is correct
22 Correct 28 ms 7808 KB Output is correct
23 Correct 29 ms 7936 KB Output is correct
24 Correct 30 ms 8064 KB Output is correct
25 Correct 28 ms 7808 KB Output is correct
26 Correct 29 ms 7928 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 6 ms 1536 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 6 ms 1408 KB Output is correct
8 Correct 7 ms 1536 KB Output is correct
9 Correct 6 ms 1408 KB Output is correct
10 Correct 6 ms 1408 KB Output is correct
11 Correct 6 ms 1408 KB Output is correct
12 Correct 6 ms 1408 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct
14 Correct 25 ms 7068 KB Output is correct
15 Correct 6 ms 3324 KB Output is correct
16 Correct 18 ms 5248 KB Output is correct
17 Correct 5 ms 1536 KB Output is correct
18 Correct 30 ms 8060 KB Output is correct
19 Correct 29 ms 7808 KB Output is correct
20 Correct 29 ms 7936 KB Output is correct
21 Correct 30 ms 8064 KB Output is correct
22 Correct 28 ms 7808 KB Output is correct
23 Correct 29 ms 7936 KB Output is correct
24 Correct 30 ms 8064 KB Output is correct
25 Correct 28 ms 7808 KB Output is correct
26 Correct 29 ms 7928 KB Output is correct
27 Correct 853 ms 86056 KB Output is correct
28 Correct 14 ms 16768 KB Output is correct
29 Correct 69 ms 17400 KB Output is correct
30 Correct 11 ms 9728 KB Output is correct
31 Correct 619 ms 72696 KB Output is correct
32 Correct 849 ms 86904 KB Output is correct
33 Correct 851 ms 87032 KB Output is correct
34 Correct 712 ms 79480 KB Output is correct
35 Correct 865 ms 86852 KB Output is correct
36 Correct 849 ms 86904 KB Output is correct
37 Correct 882 ms 87160 KB Output is correct
38 Correct 584 ms 72416 KB Output is correct
39 Correct 598 ms 72584 KB Output is correct