n rows and n columns. So, the board consists of n × n cells. Each cell contains either a symbol ‘.’, or a symbol ‘#’.
A cross on the board is a connected set of exactly five cells of the board that looks like a cross. The picture below shows how it looks.
#’, and any cell with symbol ‘#’ must belong to some cross. No two crosses can share a cell.
Please, tell Ciel if she can draw the crosses in the described way.
Input
n (3 ≤ n ≤ 100) — the size of the board.
n lines describes one row of the board. The i-th line describes the i-th row of the board and consists of n characters. Each character is either a symbol ‘.’, or a symbol ‘#’.
Output
YES” if Ciel can draw the crosses in the described way. Otherwise output a single line with “NO”.
Sample test(s)
input
5
.#…
####.
.####
…#.
…..
output
YES
input
4
####
####
####
####
output
NO
input
6
.#….
####..
.####.
.#.##.
######
.#..#.
output
YES
input
6
.#..#.
######
.####.
.####.
######
.#..#.
output
NO
input
3
…
…
…
output
YES
Note
In example 1, you can draw two crosses. The picture below shows what they look like.
#’, but each cross contains 5. Since 16 is not a multiple of 5, so it’s impossible to cover all.
#include
#include
char s[101][101];
int main()
{
int n, i, j, x=0;
scanf("%d",&n);
for(i=0;i 服务器托管，北京服务器托管，服务器租用 http://www.fwqtg.net
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