Submission #1131255

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
int n, Mx;
char ch[510][510];
int main()
{
	cin >> n;
	for(int i = 1; i <= n; i ++)
		scanf("%s", ch[i] + 1);
	for(int i = 1; i <= n; i ++)
	{
		int cnt = 0;
		for(int j = 1; j <= n; j ++)
			if(ch[i][j] == '#') cnt ++;
		Mx = max(cnt, Mx);
		cnt = 0;
		for(int j = 1; j <= n; j ++)
			if(ch[j][i] == '#') cnt ++;
		Mx = max(cnt, Mx);
	}
	if(Mx == 0) cout << -1;
	else if(Mx != n) cout << 2 * n - Mx;
	else
    {
        int p1 = 0, p2 = 0;
        for(int i = 1; i <= n; i ++)
        {
            int cnt = 0;
            for(int j = 1; j <= n; j ++)
                if(ch[i][j] == '#') cnt ++;
            if(cnt == n) p1 ++;
            cnt = 0;
            for(int j = 1; j <= n; j ++)
                if(ch[j][i] == '#') cnt ++;
            if(cnt == n) p2 ++;
        }
        p1 = max(p1, p2);
        cout << n - p1;
    }
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", ch[i] + 1);
                         ^

Judge Result