$$ SET A

Write a program to display the output of the following pattern

a$)$

b$)$

a

b c

d e f

$($up to $6$ rows$)$

Convert the following Decimals into Octal and Hexadecimal

$($i$)456$

$($ii$)1230$

iii$)1928$

Add $/$ Subtract the following using their binary values

$($i$)(-23)+67$

$($ii$)(-43)+(-23)$

$($iii$)$

$89+(-105)$

Write a program to read a line of text and remove the all the vowels in it

Example:

Input: Computer is an electronic device

Output :Cmptr s in tctrncdvc

Write a program to compare two strings S $1$ and S $2$ without using the built $-$in $-$ function strcmp$()$

In preparing the Electricity Bills, the customers are divided into three categories as A$,$ B and C$.$ To calculate bill for the customers, the following conditions are applied:

For $A,$

For first $50$ units, Rate $=0$

For the next $100$ units, Rate $=0\mathrm{.}75$ per unit

For the next $150$ units, Rate $=1\mathrm{.}05$ per unit

For above $350$ units, Rate $=1\mathrm{.}75$ per unit

For $B,$

For first $200$ units, Rate $=1\mathrm{.}40$ per unit

For the next $300$ units, Rate $=2\mathrm{.}25$ per unit

For above $500$ units, Rate $=3\mathrm{.}50$ per unit

For $C,$

For first $250$ units, Rate $=3\mathrm{.}00$ per unit

For the next $750$ units, Rate $=2\mathrm{.}25$ per unit

For above $1000$ units, Rate $=5\mathrm{.}00$ per unit

Additional Tax $=0\mathrm{.}25**$ Bill Amount

Write a C Program to read the type of the customer $($String$),$ Previous month reading $($Integer$)$ and Current month reading $($Integer$)$ and to calculate the Bill amount for the Customer.

$7.$ Write a C program that takes the user's name, BITS ID and email from the user. Check if the length of the name contains at least $10$ alphabets, BITS ID must contain both alphabets and digits and email contains alphabets, digits, @ and $.($dot$)$ symbols. If the conditions are satisfied for the user data, then print you have been successfully registered. Else go back and ask the user to enter the correct details. Validate the data immediately after entering each detail.

$8.$ Write a C program that takes n numbers as input. If the successive number is the previous number or next n