C Exercises: Display the first 10 lucus numbers

C Numbers: Exercise-11 with Solution

Write a program in C to display the first 10 lucus numbers.

Sample Solution:

C Code:

# include <stdio.h>
# include <math.h>
# include <stdlib.h>

int main() 
{
	printf("\n\n Find the first 10 lucus numbers: \n");
	printf(" -------------------------------------\n");
	printf(" The first 10 Lucus numbers are: \n");

    int n = 10;  
     int n1 = 2, n2 = 1, n3;  
        if (n > 1)
		{  
			printf("%d %d ",n1,n2);
            for(int i = 2; i < n; ++i)
			{  
                n3 = n2;  
                n2 += n1;  
                n1 = n3;  
				printf("%d ",n2);
            } 
			printf("\n");
        }  
        else if (n == 1)
        {
		printf("%d ",n2);		
			printf("\n");		   
        }
        else 
        { 
			printf("Input a positive number.\n");
        }
}  

Sample Output:

 The first 10 Lucus numbers are:                                                                              
2 1 3 4 7 11 18 29 47 76

Flowchart:

C Programming Code Editor:

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