Submission #872939

#	Time	Username	Problem	Language	Result	Execution time	Memory
872939		20163070	Bitaro the Brave (JOI19_ho_t1)	C++14	0 / 100	1 ms	348 KiB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;

#define int long long

const int N=3010;

int n,m;
char a[N][N];
int h[N],h2[N];

signed main()
{
	cin>>n>>m;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i]+1;
	}
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=m;j++)
		{
			if(a[i][j]=='O') h[i]++;
		}
	}
	for(int k=1;k<=n;k++)
	{
		for(int j=1;j<=m;j++)
		{
			if(a[k][j]=='I') h2[j]++;
		}
	}
	int res=0;
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=m;j++)
		{
			if(a[i][j]=='J'&&h[i]&&h2[j])
			{
				res+=h[i]*h2[j];
			}
		}
	}
	cout<<res;
	return 0;
}

Compilation message (stderr)

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:17:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   17 |   cin>>a[i]+1;
      |        ~~~~^~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50