Submission #818901

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
818901	2023-08-10T07:15:15 Z	vjudge1	Bitaro the Brave (JOI19_ho_t1)	C++17	20 / 100	16 ms	6612 KB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;

const int NMAX = 3069;

int vals[NMAX][NMAX];
int oscores[NMAX][NMAX];
bool iexist[NMAX];
bool jexist[NMAX];

int main() {
  int I, J;
  cin >> I >> J;

  for (int i = 0; i < NMAX; i++) {
    iexist[i] = false;
    jexist[i] = false;
  }

  for (int i = 1; i <= I; i++) {
    for (int j = 1; j <= J; j++) {
      char v;
      cin >> v;
      
      if (v == 'J') {
        vals[i][j] = 1;
        iexist[i] = true;
        jexist[j] = true;
      } else if (v == 'I') {
        vals[i][j] = 2;
      } else {
        vals[i][j] = 3;
      }
    }
  }

  for (int i = I - 1; i > 0; i--) {
    if (!iexist[i]) continue;
    int oscore = 0;
    for (int j = J; j > 0; j--) {
      if (vals[i][j] == 3) {
        oscore++;
      }
      oscores[i][j] = oscore;
    } 
  }


  // for (int i = 1; i <= I; i++) {
  //   for (int j = 1; j <= J; j++) {
  //     cout << oscores[i][j];
  //   }
  //   cout << endl;
  // }

  int possibilities = 0;

  for (int j = J - 1; j > 0; j--) {
    if (!jexist[j]) continue;
    int iscore = 0;
    for (int i = I; i > 0; i--) {
      if (vals[i][j] == 2) {
        iscore++;
      }
      if (vals[i][j] == 1) {
        possibilities += iscore * oscores[i][j];
      }
    } 
  }

  cout << possibilities << endl;

  return 0;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	236 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	980 KB	Output is correct
7	Correct	1 ms	980 KB	Output is correct
8	Correct	1 ms	1108 KB	Output is correct
9	Correct	1 ms	1108 KB	Output is correct
10	Correct	1 ms	980 KB	Output is correct
11	Correct	1 ms	1108 KB	Output is correct
12	Correct	1 ms	1108 KB	Output is correct
13	Correct	1 ms	980 KB	Output is correct

Subtask #2

0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	236 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	980 KB	Output is correct
7	Correct	1 ms	980 KB	Output is correct
8	Correct	1 ms	1108 KB	Output is correct
9	Correct	1 ms	1108 KB	Output is correct
10	Correct	1 ms	980 KB	Output is correct
11	Correct	1 ms	1108 KB	Output is correct
12	Correct	1 ms	1108 KB	Output is correct
13	Correct	1 ms	980 KB	Output is correct
14	Correct	12 ms	5972 KB	Output is correct
15	Correct	1 ms	3540 KB	Output is correct
16	Correct	6 ms	3356 KB	Output is correct
17	Correct	0 ms	468 KB	Output is correct
18	Correct	16 ms	6612 KB	Output is correct
19	Correct	11 ms	6356 KB	Output is correct
20	Incorrect	11 ms	6444 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #3

0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	236 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	980 KB	Output is correct
7	Correct	1 ms	980 KB	Output is correct
8	Correct	1 ms	1108 KB	Output is correct
9	Correct	1 ms	1108 KB	Output is correct
10	Correct	1 ms	980 KB	Output is correct
11	Correct	1 ms	1108 KB	Output is correct
12	Correct	1 ms	1108 KB	Output is correct
13	Correct	1 ms	980 KB	Output is correct
14	Correct	12 ms	5972 KB	Output is correct
15	Correct	1 ms	3540 KB	Output is correct
16	Correct	6 ms	3356 KB	Output is correct
17	Correct	0 ms	468 KB	Output is correct
18	Correct	16 ms	6612 KB	Output is correct
19	Correct	11 ms	6356 KB	Output is correct
20	Incorrect	11 ms	6444 KB	Output isn't correct
21	Halted	0 ms	0 KB	-