#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 understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.