C Exercises: Put the triple of the previous position starting from the second position of the array

C Basic Declarations and Expressions: Exercise-49 with Solution

Populate an array where each element is triple the previous

Write a C program to read and print the elements of an array with length 7. Before printing, insert the triple of the previous position, starting from the second position.
For example, if the first number is 2, the array numbers must be 2, 6, 18, 54 and 162

Sample Solution:

C Code:

#include <stdio.h>
int main() {
    int n[5], i, x;
    
    // Input the first number of the array
    printf("Input the first number of the array:\n");
    scanf("%d", &x);
    
    // Fill the array with values based on the input
    for(i = 0; i < 5; i++) {
        n[i] = x;
        x = 3 * x;
    }

    // Print the array values
    for(i = 0; i < 5; i++) {
        printf("n[%d] = %d\n", i, n[i]);
    }
    
    return 0;
}

Sample Output:

Input the first number of the array:                                   
5                                                                      
n[0] = 5                                                               
n[1] = 15                                                              
n[2] = 45                                                              
n[3] = 135                                                             
n[4] = 405

Flowchart:

C programming Code Editor:

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