C Exercises: Find the product of an array of specified condition
C Array: Exercise-65 with Solution
Write a program in C to find the product of an array such that product is equal to the product of all the elements of arr[] except arr[i].
Pictorial Presentation:

Sample Solution:
C Code:
#include <stdio.h>
void productOfArray(int arr1[], int n)
{
int l_arr[n],r_arr[n],product[n];
int i, j;
l_arr[0] = 1;
r_arr[n-1] = 1;
for(i = 1; i < n; i++)
l_arr[i] = arr1[i-1]*l_arr[i-1];
for(j = n-2; j >=0; j--)
r_arr[j] = arr1[j+1]*r_arr[j+1];
for (i=0; i<n; i++)
product[i] = l_arr[i] * r_arr[i];
for (i=0; i<n; i++)
printf("%d ",product[i]);
}
int main()
{
int arr1[] = {1, 2, 3, 4, 5, 6};
int n = sizeof(arr1)/sizeof(arr1[0]);
int i;
//------------- print original array ------------------
printf("The given array is : ");
for(i = 0; i < n; i++)
{
printf("%d ", arr1[i]);
}
printf("\n");
//------------------------------------------------------
printf("The product array is: ");
productOfArray(arr1, n);
}
Sample Output:
The given array is : 1 2 3 4 5 6 The product array is: 720 360 240 180 144 120
Flowchart:

C Programming Code Editor:
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Previous: Write a program in C to find the median of two sorted arrays of same size.
Next: Write a program in C to count the number of inversion in a given array.
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C Programming: Tips of the Day
C Programming - What is the argument for printf that formats a long?
Put an l (lowercased letter L) directly before the specifier.
unsigned long n; long m; printf("%lu %ld", n, m);
Ref : https://bit.ly/3dIwfkP
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