Pattern Printing I

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#include<stdio.h>
int fib(int k)
{
    if(k==0)
    {
        return 0;
    }
    if(k==1)
    {
        return 1;
    }
    else
    {
        return (fib(k-1)+fib(k-2)); //recursion
    }
    
}
int main()
{
    int a=1,i,j,n;
    printf("Enter number of rows to print: ");
    scanf("%d",&n);
    for(i=0;i<n;i++)
    {
        for(j=0;j<i+1;j++)
        {
            printf("%d\t",fib(a));
            a++;
        }
        printf("\n");
    }
    return 0;
}