8. Program to accept two number and print largest among them.
#if_else
@C_Codings
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b;
clrscr();
printf("Enter 1st number : ");
scanf("%d",&a);
printf("Enter 2nd number : ");
scanf("%d",&b);
if(a>b)
printf("Largest value is : %d",a);
else
printf("Largest value is : %d",b);
getch();
}#if_else
@C_Codings
9. Program to accept a number and check whether the number is Positive, Negative or Zero.
#if_else
@C_Codings
#include<stdio.h>
#include<conio.h>
void main()
{
int n;
clrscr();
printf("Enter number: ");
scanf("%d",&n);
if(n>0)
printf("Number is positive");
else if(n<0)
printf("Number is negative");
else
printf("Number is Zero");
getch();
}#if_else
@C_Codings
10. Program to check whether the number is even or odd.
#if_else
@C_Codings
#include<stdio.h>
#include<conio.h>
void main()
{
int n;
clrscr();
printf("Enter number: );
scanf("%d",&n);
if(n%2==0)
printf("Number is even");
else
printf("Number is odd");
getch();
}#if_else
@C_Codings
11. Program to accept three numbers from user and print them in ascending and decending order.
#if_else
@C_Codings
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c;
clrscr();
printf("Enter numbers:");
scanf("%d %d %d",&a,&b,&c);
if ((a>=b)&&(a>=c)) {
if (b>=c) {
printf("\nDesc : %d %d %d",a,b,c);
printf("\nAsc : %d %d %d",c,b,a);
} else {
printf("\nDesc : %d %d %d",a,c,b);
printf("\nAsc : %d %d %d",b,c,a);
}
} else if ((b>=a)&&(b>=c)) {
if (a>=c) {
printf("\nDesc : %d %d %d",b,a,c);
}
} else {
if (b>=a) {
printf("\nDesc : %d %d %d",c,b,a);
printf("\nAsc : %d %d %d",a,b,c);
} else {
printf("\nDesc : %d %d %d",c,a,b);
printf("\nAsc : %d %d %d",b,a,c);
}
}
getch();
}#if_else
@C_Codings
12. Program to find the roots of a quadratic equation.
#if_else
@C_Codings
#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
float a, b, c, discriminant, real;
double r1, r2, imag;
printf("Enter coefficients a, b and c: ");
scanf("%f%f%f", &a, &b, &c);
discriminant = b * b - 4 * a * c;
if (discriminant > 0)
{
r1 = (-b + sqrt(discriminant)) / (2 * a);
r2 = (-b - sqrt(discriminant)) / (2 * a);
printf("Roots are: %.2f and %.2f", r1, r2);
}
else if (discriminant == 0)
{
r1 = r2 = -b / (2 * a);
printf("Roots are: %.2f and %.2f", r1, r2)
}
else
{
real = -b / (2 * a);
imag = sqrt(-discriminant) / (2 * a);
printf("Roots : %.2f+%.2fi and %.2f-%.2fi", real, imag, real, imag);
}
getch();
}#if_else
@C_Codings
13. Program to accept rollnumber and marks of three subjects from user and print total marks, average and grade.
#if_else
@C_Codings
#include<stdio.h>
#include<conio.h>
void main()
{
int RollNum, m1, m2, m3, total;
float avg;
clrscr();
printf("Enter Roll Number : ");
scanf("%d",&RollNum);
printf("Enter marks for three subjects : ");
scanf("%d %d %d", &m1, &m2, &m3);
total = m1 + m2 + m3;
avg = total / 3.0;
printf("\nTotal is : %d", total);
printf("\nAverage is : %5.2f", avg);
if(avg>80)
printf("\nGrade : A");
else if((avg>60)&&(avg<=80))
printf("\nGrade : B");
else if((avg>40)&&(avg<=60))
printf("\nGrade : C");
else if((avg>=33)&&(avg<=40)
printf("\nGrade : D");
else
printf("\nGrade : Fail");
getch();
}#if_else
@C_Codings