Chapter 3 Solve E.Balaguruswamy ANSI C

CHAPTER – 3

EXERCISE NO.3.1:

#include<stdio.h>
#include<conio.h>
void main()
{
int x,y,z,temp;
clrscr();
printf(“Enter the value of x,y,z\n”);
scanf(“%d %d %d”,&x,&y,&z);
temp=x;
x=y;
y=z;
z=temp;
printf(“%d %d %d”,x,y,z);
getch();
}


EXERCISE NO.3.2:

#include<stdio.h>
#include<conio.h>
void main()
{
int a,e;
float p;
clrscr();
printf(“Enter the value of p\n”);
scanf(“%f”,&p);
a=int(p);
printf(“%d\n”,a);
e=a%10;
if(a>10)
printf(“%d\n”,e);
getch();
}


EXERCISE NO.3.3.

#include<stdio.h>
#include<conio.h>
void main()
{
int a,e;
clrscr();
printf(“Enter the value of a\n”);
scanf(“%d”,&a);
e=a%100;
if(a>100)
printf(“%d\n%d\n”,a,e);
getch();
}


EXERCISE NO 3.4:

#include<stdio.h>
#include<conio.h>
void main()
{
int length,width;
clrscr();
float area,perimeter;
printf(“Enter the value of length,width\n”);
scanf(“%d %d”,&length,&width);
area=(length*width);
perimeter=2*(length+width);
printf(“%f %f”,area,perimeter);
getch();
}


EXERCISE NO.3.5:

#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c,e,x;
float p;
clrscr();
printf(“Enter the value of p\n”);
scanf(“%f”,&p);
a=int(p);
printf(“%d\n”,a);
e=a%10000;
b=e%1000;
c=b%100;
x=c%10;
if(a>10000)
printf(“%d\n%d\n%d\n%d\n”,a,e,b,c,x);
else if(a>1000)
printf(“%d\n%d\n%d\n”,a,b,c,x);
else if(a>100)
printf(“%d\n%d\n”,a,c,x);
else if(a>10)
printf(“%d\n%d\n”,a,x);
getch();
}


EXERCISE NO.3.6:

#include<stdio.h>
#include<conio.h>
void main()
{
int years;
float s, d,p;
clrscr();
printf(“Enter the value of years,d,p\n”);
scanf(“%d %f %f”,&years,&d,&p);
s=p-(years*d);
printf(“%f”,s);
getch();
}


EXERCISE NO.3.7:

#include<stdio.h>
#include<conio.h>
void main()
{
float m;
int n,p;
clrscr();
printf(“Enter the value of m\n”);
scanf(“%f”,&m);
n=(m/1)+1;
p=m;
printf(“%d %f %d”,n,m,p);
getch();
}


EXERCISE NO.3.8:

#include<conio.h>
void main()
{
int a,u,t;
float distance;
clrscr();
printf(“Enter the value of a,u,t\n”);
scanf(“%d %d %d”,&a,&u,&t);
distance=u*t+(a*t*t)/2;
printf(“%f”,distance);
getch();
}


EXERCISE NO.3.9:

#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{ float EOQ,d,s,h,x;
Clrscr();
printf(“Enter the value of d,s,h\n”);
scanf(“%f %f %f”,&d,&s,&h);
x=(2*d*s)/h;
EOQ=sqrt(x);
printf(“%f”,EOQ);
getch();
}
SOLUTION 2:
#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
float x,s,d,h,TOB;
clrscr();
printf(“Enter the value of s,d,h\n”);
scanf(“%f%f%f”,&s,&d,&h);
x=(2*s)/(d*h);
TOB=sqrt(x);
printf(“%f”,TOB);
getch();
}


EXERCISE NO.3.10:

#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
float L,R,C,x,a,b,F;
clrscr();
printf(“Enter the value of L,R,C\n”);
scanf(“%f %f %f”,&L,&R,&C);
a={ (1/L*C) – (R*R/4*C*C) };
F=sqrt(a);
Printf(“%f”,F);
getch();
}


EXERCISE NO.3.11:

#include<stdio.h>
#include<conio.h>
void main()
{
int num,a,b,c,d,x,y,result;
clrscr();
printf(“Enter a number”);
scanf(“%d”,&num);
a=num%10;
x=num/10;
b=x%10;
y=x/10;
c=y%10;
d=y/10;
result=a+b+c+d;
printf(“%d”,result);
getch();
}


EXERCISE NO. 3.12:

#include<stdio.h>
#include<conio.h>
void main()
{
int m;
clrscr();
m=sizeof(10);
printf(“Size=%d”,m);
getch();
}


EXERCISE NO.3.13:


#include<stdio.h>
#include<conio.h>
void main()
{
int x,y,z,a,b;
printf(“Enter the value of x,y,z\n”);
scanf(“%d%d%d”,&x,&y,&z);
printf(“largest\n”);
a=(x>y)?x:y
b=(a>z)?a:z
printf(“%d”,b);
}


EXERCISE NO.3.14:

#include<stdio.h>
#include<conio.h>
void main()
{
int m,n;
printf(“Enter m & n,m>=n:”);
scanf(“%d %d”,&m,&n);
if(m%n==0)
printf(“m is a multiple of n”);
else
printf(“m is not a multiple of n”);
getch();
}


EXERCISE N0.3.15:

#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c,x,y;
float sum, average;
clrscr();
printf(“Enter the value of a,b,c\n”);
scanf(“%d%d%d”,&a,&b,&c);
sum=(a+b+c);
printf(“sum=%f\n”,sum);
{
average=sum/3;
printf(“average=%f\n”,average);
}
{
printf(“Largest\n”);
x=(a>b)?a:b;
y=(x>c)?x:c;
printf(“%d\n”,y);
}
{
printf(“Smallest\n”);
x=(a<b)?a:b;
y=(x<c)?x:c;
printf(“%d\n”,y);
}
getch();
}


EXERCISE NO.3.16:

#include<stdio.h>
#include<conio.h>
void main()
{
int code,call;
float bill;
clrscr();
printf(“Enter customer code and number of calls made:”);
scanf(“%d %d”,&code,&call);
bill=250+(call*1.25);
printf(“Bill=%f”,bill);
getch();
}


EXERCISE NO.3.17:

SOLUTION:
#include<stdio.h>
#include<conio.h>
#include<math.h>
#define p1 3.1416
#define MAX 180
void main()
{
int i;
float x,y,z;
clrscr();
i=0;
printf(“x(degree) sin(x) cos(x)\n”);
while(i<=MAX)
{
x=(p1/MAX)*i;
y=sin(x);
z=cos(x);
printf(“%d\n %f\n %f\n”,i,y,z);
i=i+15;
}
getch();
}


EXERCISE NO.3.18:

#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
/*……square root and square of numbers 0 to 100…..*/
int i,y;
float x;
clrscr();
printf(“Number\tSquare root\tSquare\n\n”);
for(i=0;i<=100;i++)
{
x=sqrt(i);
y=i*i;
printf(“%d\t%f\t%d\n”,i,x,y);
}
getch();
}


EXERCISE NO.3.19:

#include<stdio.h>
#include<conio.h>
void main()
{
int x;
clrscr();
printf(“Enter the integer number:”);
scanf(“%d”,&x);
if(x%2==0)
printf(“THe number %d is even”,x);
else
printf(“The number %d is odd”,x);
getch();
}


EXERCISE NO.3.20:

include<stdio.h>
#include<conio.h>
void main()
{
float sum;
int n;
clrscr();
sum=0;
for(n=1;n<=10;++n)
{
sum=sum+1/(float)n;
printf(“%2d %6.4f\n”,n,sum);
}
getch();
}
\n