Question
Which of the following lines should be inserted to complete the below code?
#include<stdio.h>
#include<limits.h>
int mat_chain_multiplication(int *mat, int n)
{
int arr[n][n];
int i,k,row,col,len;
for(i=1;i<n;i++)
arr[i][i] = 0;
for(len = 2; len < n; len++)
{
for(row = 1; row <= n - len + 1; row++)
{
col = row + len - 1;
arr[row][col] = INT_MAX;
for(k = row; k <= col - 1; k++)
{
int tmp = ________________________;
if(tmp < arr[row][col])
arr[row][col] = tmp;
}
}
}
return arr[1][n - 1];
}
int main()
{
int mat[6] = {20,5,30,10,40};
int ans = mat_chain_multiplication(mat,5);
printf("%d",ans);
return 0;
}
a.
arr[row][k] – arr[k + 1][col] + mat[row – 1] * mat[k] * mat[col];
b.
arr[row][k] + arr[k + 1][col] – mat[row – 1] * mat[k] * mat[col];
c.
arr[row][k] + arr[k + 1][col] + mat[row – 1] * mat[k] * mat[col];
d.
arr[row][k] – arr[k + 1][col] – mat[row – 1] * mat[k] * mat[col];
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Q. Consider the following dynamic programming implementation of the matrix chain problem. Which of the following lines should be inserted to complete the below code?
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