Submission #1132152

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Source Code Expand

#include<cstdio>

char s[501][501];int n;

int main()
{
	int i,j;bool f;
	scanf("%d",&n);
	for(i=0;i<n;i++)
		scanf("%s",s[i]);

	for(i=0,f=true;i<n&&f;i++)
		for(j=0;j<n;j++)
			if(s[i][j]!='.')
			{ f=false;break; }
	if(f)return puts("-1"),0;

	for(i=0,f=true;i<n&&f;i++)
		for(j=0;j<n;j++)
			if(s[i][j]!='#')
			{ f=false;break; }
	if(f)return puts("0"),0;

	int c=0;
	for(j=0;j<n;j++)
	{
		for(i=0;i<n;i++)
			if(s[i][j]!='#')
				break;
		c+=i==n;
	}

	for(i=0;i<n;i++)
	{
		for(j=0;j<n;j++)
			if(s[i][j]!='#')
				break;
		if(j==n)return printf("%d\n",n-c),0;
	}

	int ans=0,d;
	for(i=0;i<n;i++)
	{
		for(j=d=0;j<n;j++)
			if(s[j][i]=='#')
				break;
		if(j==n)d=-1;
		for(j=0;j<n;j++)
			d+=s[i][j]=='#';
		if(d>ans)ans=d;
	}

	printf("%d\n",n*2-ans-c);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:10:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",s[i]);
                   ^

Judge Result