Fundamentals of Computer Programming 2065
Attempt all questions:
1. Draw the flow chart for finding largest of three numbers and write an algorithm and explain it.
Algorithm:
1. Start
2. Input A,B,C
3. If (A>B) and (A>C) then print “A is greater”.
Else if (B>A) and (B>C) then print “B is greater”.
Else print “C is greater”.
4. Stop
Flowchart:
2. Find the value of “a” in each of the following statements:
int i=3 , j=4 ,k=8
float a=4.5 ,b=6.5,c=3.5
(a) a = b- i/k +c/k
(b) a = (b-k)/j + (j + c)/k
(c) a = c-(( i + j)/(k + i))*b
(d) a = c – i + j / k+ i * b
(e) a = c + j % 2 +b
(f) a = (b + 1) % (c + 1).
a) a = b-i/k+c/k = 6.5-3/8+3.5/8 = 6.5-0+0.4375 = 6.9375
b) a = (b-k)/j+(j+c)/k = (6.5-8)/4+(4+3.5)/8 = 0.5625
c) a = c-((i+j)/(k+i))*b = 3.5-((3+4)/(8+3))*6.5 = 3.5-0*6.5 = 3.5
d) a = c-i+j/k+i*b = 3.5-3+4/8+3 *6.5 = 3.5-3+0+19.5 = 0.5 + 19.5 = 20
e) a = c+j%2+b = 3.5+4%2+6.5 = 3.5+0+6.5 = 10
f) a = (b+1)%(c+1) = (6.5+1)%(3.5+1) = 7.5%4.5 = Not valid
3. Write a program for the interest charged in installments for following case. A cassette player costs Rs. 2000. A shopkeeper sells it for Rs. 100 down payment and Rs. 100 for 21 more months. What is the monthly interest charged?
#include<stdio.h>
#include<conio.h>
void main()
{
float c_price, t_price, t_interest, m_interest; //cost price, total price, total interest, monthly interest
c_price=2000;
t_price=100+(100*21); //down payment Rs. 100 and Rs. 100 for 21 installments
t_interest=(t_price - c_price)/c_price*100;
m_interest=t_interest/22; //payment is for 22 months
printf("\\nThe monthly interest charged is %f", m_interest); //result is 0.45% per month
getch();
}
4. Write a program that uses a “for” loop to compute and prints the sum of a given numbers of squares.
#include<stdio.h>
int main()
{
int i, n, sum=0;
printf("Enter n value: ");
scanf("%d", &n);
for(i=0; i<=n; i++)
{
sum += (i*i);
}
printf("Sum of squares of first %d natural numbers = %d", n, sum);
return 0;
}5. Write a program to obtain the product of the following matrices and explain it:
#include<stdio.h>
#include<conio.h>
void main()
{
int a[3][3]={{3,5,7},{2,-3,4,{4,5,2}};
int b[3][2]={{7,6},{6,-5},{4,3}};
int i, j, k, c[3][2];
for(i=0;i<3;i++)
{
for(j=0;j<2;j++)
{
c[i][j]=0;
for(k=0;k<3;k++)
{
c[i][j]=c[i][j]+a[i][k]*b[k][j];
}
}
}
for(i=0;i<3;i++)
{
for(j=0;j<2;j++)
{
printf("%d", c[i][j]);
}
printf("\\n");
}
getch();
}
6. Write a function to add, subtract, multiply, and divide two complex numbers (x +iy) and (c + id).
7. Write a program which will read a line and delete from it all occurrences of the word
“that”.
8. What is a pointer and explain its applications? Write a program that uses pointers to copy an array of double.
OR
Define a pointer. Write a function that is passed an array of n pointers to the maximum of the floats.
9. Define a structure of employee having data members name, address, age, and salary. Take data for employee in an array dynamically and find the average salary.
10. Given a text file, create another text file deleting the following words “three”, “bad”, and “time”.
OR
Why do you require graphical function? Explain the basic graphical function with suitable program.