The Interview Question Today#28(27-3-19)

Question:

C program that will display this output:

A B C D E F G F E D C B A
A B C D E F F E D C B A
A B C D E E D C B A
A B C D D C B A
A B C C B A
A B B A
A A

Solution:

C program:

#include<stdio.h>

void main()

{

int no_of_lines, alphabet = 65, i, count, j;

printf("\nenter the number of lines you want to print\t:");

scanf("%d",&no_of_lines);

count=2*no_of_lines;

for(j=0;j<no_of_lines;j++)

{

if(j==0)

{

printf("\n\n");

for(i=0;i<count;i++)

{

if(i<no_of_lines)

{

printf(" %c", alphabet++);

}

else if(i == no_of_lines)

{

alphabet--;

}

else

{

printf(" %c",--alphabet);

}

}

}

else

{

printf("\n");

//printf("\nnothing\n");

for(i=0;i<count-2*j;i++)

{

if(i<no_of_lines-j)

{

printf(" %c", alphabet++);

}

else

{

printf(" %c",--alphabet);

}

}

}

}

}

OUTPUT:

enter the number of lines you want to print : 7

A B C D E F G F E D C B A
A B C D E F F E D C B A
A B C D E E D C B A
A B C D D C B A
A B C C B A
A B B A
A A