Question
Consider the following dynamic programming implementation for Catalan numbers. Which of the following lines completes the below code?
#include<stdio.h>
int cat_number(int n)
{
int i,j,arr[n],k;
arr[0] = 1;
for(i = 1; i < n; i++)
{
arr[i] = 0;
for(j = 0,k = i - 1; j < i; j++,k--)
______________________;
}
return arr[n-1];
}
int main()
{
int ans, n = 8;
ans = cat_number(n);
printf("%d\n",ans);
return 0;
}
a.
arr[i] = arr[j] * arr[k];
b.
arr[j] += arr[i] * arr[k];
c.
arr[i] += arr[j] * arr[k].
d.
arr[j] = arr[i] * arr[k];
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Q. The recursive formula for Catalan number is given by Cn = ∑Ci*C(n-i). Consider the following dynamic programming implementation for Catalan numbers. Which of the following lines...
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