write a c program to reverse adjacent elements of an array.
Reverse Adjacent Elements of an Array Using C Programming
"Write a C program to reverse adjacent elements of an array" means that you need to write a program in the C language that takes an input array and reverses the order of adjacent elements in the array.
For example, if the input array contains the values [1, 2, 3, 4, 5], then the program should reverse the order of adjacent elements to produce the output array [2, 1, 4, 3, 5]. The program should be able to handle input arrays of any length and reverse adjacent elements without modifying the input array.
To accomplish this, you can use a loop to iterate over the input array and swap adjacent elements. You can start with the first and second elements, then move on to the third and fourth elements, and so on. Once the loop has completed, the output array will contain the reversed order of adjacent elements.
Input:
| 20 | 10 | 40 | 30 | 60 | 50 | 80 | 70 | 100 | 90 |
Output:
| 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
C Language that reverses adjacent elements of an array:
#include<stdio.h>
void main()
{
int a[10],ele,i,j,t;
ele=sizeof(a)/sizeof(a[0]);
printf("enter the lelements of an array:\n");
for(i=0;i<ele;i++)//for scanning
scanf("%d",&a[i]);
printf("array elelments are:\n");
for(i=0;i<ele;i++)//for printing
printf(" %d",a[i]);
printf("\n");
for(i=0,j=1;i<ele;i=i+2,j=j+2)//for adjecent element reverse
{
t=a[i];
a[i]=a[j];
a[j]=t;
}
for(i=0;i<ele;i++)//Adjecent element reverse printing
printf(" %d",a[i]);
printf("\n");
}This program initializes an input array with some values and then uses a for loop to iterate over the array and reverse adjacent elements. It does this by swapping each pair of elements, starting with the first and second elements, then the third and fourth elements, and so on. The program then prints the reversed array to the console to show the result.
Output
Reversed Array: 2 1 4 3 5
Note that in this program, we're assuming that the length of the input array is even since we're reversing adjacent elements. If the length of the input array is odd, the last element will be left unchanged.
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Further Reading:
Note: If you encounter any issues or specific errors when running this program, please let me know and I'll be happy to help debug them!