Nanyang OJ Registration System topic 991

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
Char a[105][1000];//two-dimensional array simulation just OK
int main ()
{
int n;
scanf ("%d", &n);
for (int i=0;i<n;i++)
{
scanf ("%s", A[i]);
int num=0;
for (int j=0;j<i;j++)
{
if (j!=i&&strcmp (A[j],a[i]) ==0) num++;
}
if (num==0) printf ("ok\n");
else printf ("%s%d\n", a[i],num);
}
return 0;
}

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Nanyang OJ Registration System topic 991