Submission #1165073

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1165073	2025-03-11 03:11:36	boclobanchat	Bitaro the Brave (JOI19_ho_t1)	C++20	0 / 100	0 ms	328 KiB

joi2019_ho_t1

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#include<bits/stdc++.h>
using namespace std;
int cntr[3333],cntc[3333];
string s[3333];
int main()
{
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n,m;
  cin>>n>>m;
  long long ans=0;
  for(int i=1;i<=n;i++)
  {
    cin>>s[i];
    for(int j=0;j<m;j++) if(s[i][j]=='O') cntr[i]++;
    else if(s[i][j]=='I') cntc[j]++;
  }
  for(int i=1;i<=n;i++) for(int j=0;j<m;j++) if(s[i][j]=='J') ans+=cntr[i]*cntc[j];
  cout<<ans;
}
 
 
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• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50