OJ Board

#include<stdio.h>
#include<math.h>
#include<string.h>

int main()
{
char inp[500];
int test,i,k,cnt,t,n,j;
char ch;
scanf("%d",&test);
for(t=1;t<=test;t++)
{
memset(inp,0,sizeof(inp));
scanf("%d",&n);
scanf("%s",&inp);
cnt=0;
for(i=0;i<n;i++)
{
if(inp =='.' || inp =='#')
{
if((inp[i-1 ...

please give me some sample input & output...
I got WA 3 times