C program for reversing Floyds Triangle

Interview C program: Write a C program to Reverse Floyds Triangle
7 8 9 10
4 5 6
2 3
1


Answer:
#include<stdio.h>

#include<conio.h>

void main()

{

int i,j,k;

i=7;

for(j=3;j>=0;j--)

{

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

{

printf("%d ",(i+k));

}

i=i-j;

printf("\n");

}

getch();

}

C program for converting decimal to hexadecimal number

Interview c program:Convert Decimal to Hexadecimal Number
Answer:

#include<stdio.h>

#include<conio.h>

#include<process.h>

void main()

{

Int x, y=30, z;

clrscr();

printf(“Enter the number:”);

scanf(“%d”, &x);

printf(“\n conversion of decimal to hexadecimal number\n”);

for(;;)

{

if(x= =0)

exit(1);

z=x%16;

x=x/16;

gotoxy(y--,5);

switch(z)

{

Case 10:

Printf(“A”);

Break;

Case 11:

Printf(“%c”, „B?);

Break;

Case 12:

Printf(%c”, „C”);

Break;

Case 13:

Printf(“D”);

Break;

Case 14:

Printf(“E”);

Break;

Case 15:

Printf(“F”);

Default:

Printf(“%d”, z);

}

}

getch();

}

Output:

Enter the number: 31

Conversion of decimal to Hexa decimal number

1F