C language Determine the Big O running time of the following code fragment with the explanation of calculation. (Follow the way that you see in class, like what is happening in the first step, second step,..., kth step). Consider that you are calling the fun() function by passing an array and its size m.
int fun(int *array, int m)
{
int k = 0, j=0;
for(k=0; k<=m*m; k++)
j = func2(array, m);
}
int func2(int m) {
int i = 0, sum=0;
while (m>0) {
m = m/2;
sum+=array[m-1];
}
return sum;
}

Which of these options are the correct sequence of actions for content to be copied and pasted? select content, click the copy button, click the paste button, and move the insertion point to where the content needs to be inserted. click the copy button, select the content, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, click the copy button, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, move the insertion point to where the content needs to be inserted, click the copy button, and click the paste button.

Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. thus your code should put 11 + 22 + 33 + + 4949 + 50*50 into total. use no variables other than k and total.

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.