Exercise 1Solving problems such as temperature conversion, student grading, income tax calculation, etc which expose the students to use basic C operators.a) Temperature Conversion from Fahrenheit to Celsius.

Program

#include

#includevoid main()

{

float f,c;

clrscr();

printf("\n Enter Temperature in F: ");

scanf("%f",&f);

c=5.0/9*(f-32);

printf(" Temperature in C: %f",c);

getch();

}

Output Enter Temperature in F: 98

Temperature in C: 36.666668

b) Student grading based on his percentage.

Program

#include

#includevoid main()

{

int p;

clrscr();

printf("\n Enter Percentage: ");

scanf("%d",&p);

if(p>=70)

printf(" Distinction");

else if(p>=60&&p=50&&p=40&&pb)

{

if(a>c)

printf(" a is large");

else

printf(" c is large");

}

else

if(b>c)

printf(" b is large");

else

printf(" c is large");

getch();

}Output Enter a,b,c: 5 9 3

b is large e) Income Tax calculation

0

2000000%

20000030000010%

30000050000020%

Above 500000

30%

Program

#include

#includevoid main()

{

long int a,tax=0;

clrscr();

printf("\n Enter amount: ");

scanf("%ld",&a);

if(a200000&&a300000&&a500000)

tax=50000+(a-500000)*30/100;

printf(" Tax: %ld",tax);

getch();

}

Output

Enter amount: 600000

Tax: 80000

Exercise 2

2s complement of a number is obtained by scanning it from right to left and complementing all the bits after the first appearance of a 1. Thus 2s complement of 11100 is 00100. Write a C program to find the 2s complement of a binary number.

Program#include

#include#include

#include

void main()

{

char a[20];

int i,j,k,len;

clrscr();

printf("\n Enter Binary string: ");

gets(a);

len=strlen(a);

for(k=0;a[k]!='\0';k++)

{

if(a[k]!='0'&&a[k]!='1')

{

printf(" Incorrect Binary number...");

getch();

exit(0);

}

}

for(i=len-1;a[i]!='1';i--);

for(j=i-1;j>=0;j--)

{

if(a[j]=='1')

a[j]='0';

else

a[j]='1';

}

printf(" 2's complement: %s",a);

getch();

}

Output

Enter Binary string: 110101010

2's complement: 001010110

Exercise 3a) Write a C Program to find the sum of individual digits of a positive integer

Program

#include

#include

void main()

{

int n,sum=0;

clrscr();

printf("\n Enter n: ");

scanf("%d",&n);

if(n