Submission #754670

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
754670	2023-06-08 10:17:30	KN200711	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	338 ms	88420 KiB

joi2019_ho_t1

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# include <bits/stdc++.h>
# define ll long long
using namespace std;
char arr[3002][3002];
int O[3002][3002], I[3002][3002];
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  
  int N, M;
  cin>>N>>M;
  for(int i=1;i<=N;i++) {
    for(int k=1;k<=M;k++) {
      cin>>arr[i][k];
    }
  }
  for(int i=1;i<=N;i++) {
    for(int k=M;k>=1;k--) {
      O[i][k] = O[i][k + 1];
      if(arr[i][k] == 'O') O[i][k]++;
    }
  }
  
  for(int i=1;i<=M;i++) {
    for(int k=N;k>=1;k--) {
      I[k][i] = I[k+1][i];
      if(arr[k][i] == 'I') I[k][i]++;
    }
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50