C program Examples

Example-1

C Program for converting temperature from Celsius to Fahrenheit

#include<stdio.h>
#include<conio.h>

void main()

{

float c,f;

clrscr();

printf("Enter the temperature in celsius:");

scanf("%f",&c);

f=c*9/5+32;

printf("Temperature in Fahrenheit=%.2f",f);

getch();

}

Example-2

C Program for printing grade to the student based on the percentages given below

>75-------> A+

70-75-----> A

60-70----->B

below 60-->C

#include<stdio.h>
#include<conio.h>

void main()

{

int m,p,c,sum;

float avg;

clrscr();

x: printf("Enter the marks Maths Physics Chemistry:");

scanf("%d%d%d",&m,&p,&c);

if(m<0||m>100||p<0||p>100||c<0||c>100)

goto x;

sum=m+p+c;

avg=(float)sum/3;

printf("Maths=%d\nPhysics=%d\nChemistry=%d\nSum=%d\nAverage=%.2f\n",m,p,c,sum,avg);

m<35||p<35||c<35?printf("Fail"):avg>75?printf("Grade=A+"):avg>70?printf("Grade=A"): avg>60?printf("Grade=B"):printf("Grade=C");

getch();

}

Example-3

C Program for calculating income tax based on salary of the employee details given below
Salary----->tax%
----------------------
>500000-------> 10%
300000-500000 -->7%
100000-300000 --->5%
50000-100000 ---->3%
<50000 ---------->0%

#include<stdio.h>
#include<conio.h>

void main()

{

float inc,t,sal;

clrscr();

printf("Enter the salary:");

scanf("%f",&sal);

t=sal>500000?10:sal>300000?7:sal>100000?5:sal>50000?3:0;

inc=sal*t/100;

printf("Tax=%.2f\nIncome tax=%.2f",t,inc);

getch();

}