제출 #236924

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
236924		priyansh5525	Bitaro the Brave (JOI19_ho_t1)	C++17	0 / 100	5 ms	384 KiB

joi2019_ho_t1

#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define pii pair<long long int,long long int>
#define vi vector<long long int >
#define vvi vector<vector< long long int>>
#define MP make_pair
#define PB push_back 
#define pb pop_back
#define PF push_front
#define pf pop_front
#define MOD 1000000007
#define MT make_tuple
ll n,m,r[3001]={0},c[3001]={0};
ll ans = 0;
string s[3001];
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>n>>m;
	for(ll i=0;i<n;i++)
	{
		cin>>s[i];
	}
	for(ll i=0;i<n;i++)
	{
		for(ll j=0;j<m;j++)
		{
			if(s[i][j]=='O')
				r[i]++;
			if(s[i][j]=='I')
				c[j]++;
		}
	}
	for(ll i=0;i<n;i++)
	{
		for(ll j=0;j<m;j++)
		{
			if(s[i][j]=='J')
			{
				ans+=r[i]*c[j];
			}
		}
	}
	cout<<ans<<"\n";
    return 0;
}
			

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