标题不要在意捏。

#include<bits/stdc++.h>
using namespace std;
bool a[1001][1001];
int n,m,ans;
char c;
bool ljp(int i,int j) {
	int cnt = 0;
	if(a[i][j]=='#')     cnt++;
	if(a[i+1][j]=='#')   cnt++;
	if(a[i][j+1]=='#')   cnt++;
	if(a[i+1][j+1]=='#') cnt++;
	return (cnt==3);
} 
int main() {
	cin>>n>>m;
	for(int i = 1; i<=n; i++){
		for(int j = 1; j<=m; j++){
			cin>>c;
			a[i][j] = (c=='#');
		}
	}
	for(int i = 1; i<=n-1; i++){
		for(int j = 1; j<=m-1; j++){
			if(ljp(i,j)) {
				cout<<"Bad placement"<<endl;
				return 0;
			}
		}
	}
	for(int i = 1; i<=n; i++){
		for(int j = 1; j<=m; j++){
			if(a[i][j]&&!a[i-1][j]&&!a[i][j-1]) ans++;
		}
	}
	cout<<"There are "<<ans<<" ships."<<endl;
	return 0;
}