Programming Example
C Program to Reversing an Array Elements in C Programming
C Program to Reversing an Array Elements in C Programming
#include<stdio.h>
int main() {
int arr[30], i, j, num, temp;
printf("\nEnter no of elements : ");
scanf("%d", &num);
//Read elements in an array
for (i = 0; i < num; i++) {
scanf("%d", &arr[i]);
}
j = i - 1; // j will Point to last Element
i = 0; // i will be pointing to first element
while (i < j) {
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
i++; // increment i
j--; // decrement j
}
//Print out the Result of Insertion
printf("\nResult after reversal : ");
for (i = 0; i < num; i++) {
printf("%d \t", arr[i]);
}
return (0);
}Enter no of elements : 5 11 22 33 44 55 Result after reversal : 55 44 33 22 11
First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.