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Submission #1092378

# Submission time Handle Problem Language Result Execution time Memory
1092378 2024-09-24T00:32:31 Z Flandre Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 460 ms 81048 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
 
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 = 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;
    ll 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;
  // }
 
  ll possibilities = 0;
 
  for (int j = J - 1; j > 0; j--) {
    if (!jexist[j]) continue;
    ll 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 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 440 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1116 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 440 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1116 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 11 ms 6084 KB Output is correct
15 Correct 1 ms 3672 KB Output is correct
16 Correct 5 ms 3420 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 14 ms 6892 KB Output is correct
19 Correct 10 ms 6744 KB Output is correct
20 Correct 11 ms 6836 KB Output is correct
21 Correct 14 ms 6956 KB Output is correct
22 Correct 10 ms 6648 KB Output is correct
23 Correct 10 ms 6748 KB Output is correct
24 Correct 15 ms 6928 KB Output is correct
25 Correct 10 ms 6744 KB Output is correct
26 Correct 10 ms 6748 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 440 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1116 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 11 ms 6084 KB Output is correct
15 Correct 1 ms 3672 KB Output is correct
16 Correct 5 ms 3420 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 14 ms 6892 KB Output is correct
19 Correct 10 ms 6744 KB Output is correct
20 Correct 11 ms 6836 KB Output is correct
21 Correct 14 ms 6956 KB Output is correct
22 Correct 10 ms 6648 KB Output is correct
23 Correct 10 ms 6748 KB Output is correct
24 Correct 15 ms 6928 KB Output is correct
25 Correct 10 ms 6744 KB Output is correct
26 Correct 10 ms 6748 KB Output is correct
27 Correct 459 ms 80468 KB Output is correct
28 Correct 9 ms 18520 KB Output is correct
29 Correct 22 ms 7256 KB Output is correct
30 Correct 2 ms 604 KB Output is correct
31 Correct 333 ms 66516 KB Output is correct
32 Correct 357 ms 81048 KB Output is correct
33 Correct 350 ms 80792 KB Output is correct
34 Correct 381 ms 77008 KB Output is correct
35 Correct 369 ms 80956 KB Output is correct
36 Correct 405 ms 80980 KB Output is correct
37 Correct 460 ms 80980 KB Output is correct
38 Correct 257 ms 66132 KB Output is correct
39 Correct 226 ms 66104 KB Output is correct