Submission #230160

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
230160	2020-05-08 19:03:14	Haunted_Cpp	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	882 ms	87160 KiB

joi2019_ho_t1

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#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];
    }
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50