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MCS
11 Problem Solving and Programming - Free Mca Assignment Answers
2008
Q1: The factorial of non-negative integer
n is written n! and is defined as follows:
n! = n * (n – 1) * (n – 2) . …. .1 (for
values of n greater than or equal to 1).
and
n! = 1 (for n =0).
Perform the following:
a) Write a C program
that reads a non-negative integer and computes and prints
its factorial.
b) Write a C program
that estimates the value of the mathematical constant e
by using the formula:
e = 1 + 1/1! + 1/2! + 1/3! + …..
c) Write a C program
that computes the value ex by using the formula
ex= 1 + x/1! + x2/2! + x3/3!
+ …..
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Q. Write a program to print this triangle:
*
**
*
****
*
******
*
********
*
**********
Don't use ten printf statements; use two nested loops instead.
You'll have to use braces around the body of the outer loop
if it contains multiple statements.
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Q. The standard library contains a function
called atoi, which takes a string (presumably a string of
digits) and converts it to an integer. For example, atoi(“345”)
would return the integer 345. Write a program that reads
lines (using getline), converts each line to an integer
using atoi, and computes the average of all the numbers
read. Also compute the standard deviation.
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Q. Write the function int countchtr(char
string[ ], int ch);
which returns the number of times the character ch appears
in the string. For example, the call
countchtr(“She lives in NEWYORK”, ‘e’)
would return 3.
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Q. Write a program that takes three
variables (a, b, c) in as separate parameters and rotates
the values stored so that value a goes to b, b, to c and
c to a.
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