Zero Duplicates

Write a program that will read in a list of numbers and will then print out the same list except numbers that have already been printed will be printed as a zero instead.

Input Format: 

Input consists of n+1 integers where n is the number of elements in the list. The first integer corresponds to n. The remaining n integers correspond to the elements in the list. 

Assume that the maximum value of n is 100. 

Output Format: 
Output consists of n integers on separate lines.

Sample Input : 
5
2
3
4
3
6
Sample Output: 
2
3
4
6

Code:

  #include<stdio.h>
int main(){
  int n,a[100],i,c,j;
  scanf("%d",&n);
  for(i=0;i<n;i++)
    scanf("%d",&a[i]);
  
  for(i=0;i<n;i++)
  {
    c=0;
    for(j=0;j<i;j++)
    {
      if(a[i]==a[j]){
        c=1;
        break;
      }
    }
    if(c==1)
      printf("0\n");
    else
      printf("%d\n",a[i]);
  }
  
  return 0;
}