C Exercises: Print the elements of an modified array

C Basic Declarations and Expressions: Exercise-51 with Solution

Reverse array elements by swapping positions

Write a C program to read an array of length 6, change the first element by the last, the second element by the fifth and the third element by the fourth. Print the elements of the modified array.

Pictorial Presentation:

Sample Solution:

C Code:

#include <stdio.h>
#define AL 5
int main() {
    // Define the size of the array
    int array_n[AL], i, temp;
	
    // Prompt user to input 5 elements of the array
    printf("Input the 5 members of the array:\n");
    for(i = 0; i <  AL; i++) {
        scanf("%d", &array_n[i]);
    }

    // Swap the first half of the array with the second half
    for(i = 0; i < AL; i++) {
        if(i < (AL/2)) {
            temp = array_n[i];
            array_n[i] = array_n[AL-(i+1)];
            array_n[AL-(i+1)] = temp;
        }
    }

    // Print the modified array
    for(i = 0; i < AL; i++) {
        printf("array_n[%d] = %d\n", i, array_n[i]);
    }

    return 0;
}

Sample Output:

Input the 5 members of the array:                                      
15                                                                     
20                                                                     
25                                                                     
30                                                                     
35                                                                     
array_n[0] = 35                                                        
array_n[1] = 30                                                        
array_n[2] = 25                                                        
array_n[3] = 20                                                        
array_n[4] = 15

Flowchart:

C programming Code Editor:

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