Question

I need help writing these functions in C programming.

Write a C function that checks if an array is sorted or not using an iterative approach. Write a C function that checks if an array is sorted or not using a recursive approach Write a C function to reverse the elements of an array. Note you are not allowed to use an 1. additional array to do that Write a C function to find the sum of the elements of an array. Write a C function to find the maximum and minimum elements in a given array Write a C function to print all the elements in a given array using a recursive approach. Write a C function that takes 2D array and convert the rows to columns and the columns to row. Write a C function to shift the elements of an array to the left or the right n positions Write a C function calculates the number of digits in any given integer number, e.g if the input is 2317 the out put is 4 if the input is 5 the output is 1, and if the input is 73 the output is 2

Answer 1

a)

int isSortedIter(int a[],int n)
{
int i;
for(i=0;i<n-1;i++)
{
if(a[i]>a[i+1])
return 0;
}
return 1;
}

b)

int isSortedRecur(int a[],int n,int ind)// pass initially ind as 0
{
if(ind==n-1)
{
return 1;
}
else
{
if(a[ind]>a[ind+1])
{
isSortedRecur(a,n,ind+1);
}
else
return 0;
}
}

c)

void reverse(int array[],int n)
{
int c,end=n-1;
for (c = 0; c < n/2; c++) {
int t = array[c];
array[c] = array[end];
array[end] = t;

end--;
}
}

d)

int sumElements(int a[],int n)
{
int i,sum=0;
for(i=0;i<n;i++)
{
sum=sum+a[i];
}
return sum;
}