A to Z of C

Posted on March 18th, 2012

“A to Z of C”, by R. Rajesh Jeba Anbiah & K. Joseph Wesley, is an evolving non-profit book on C/DOS/Turbo C programming. Each chapter of this book can be downloaded in pdf format.

Contents

• ANSI C
• DOS Programming
• Advanced Graphics Programming
• Advanced Programming
• Mathematics & C
• Algorithms & C
• Illegal Codes
• Next Step
• Smart Dictionary
• Postlude

Book Details
Author(s): R. Rajesh Jeba Anbiah & K. Joseph Wesley
Format(s): PDF
Link: Download.

To calculate perimeter & area of a rectangle

To accept the length,breadth of rectangle and to display its perimeter and area

#include<stdio.h>

Void main()

{

Float length,breadth,perimeter,area;

Clrscr();

Printf(“enter the dimension of a rectangle\n”);

Printf(“length ?”);

Scanf(“%f”,&length);

Printf(“breadth ?”);

Scanf(“%f”,&breadth);

Perimeter=2*(length+breadth);

area=length*breadth;

printf(“perimeter of the rectangle is %.3g\n”,perimeter);

printf(“area of the rectangle is % .3g”,area);

getch();

TO CHECK WHETHER A GIVEN NUMBER IS PERFECT FACTORIAL OR NOT

#include<stdio.h>

Void main()

{

Int n,i=1,flag=0;

Long fact=1;

Printf(“enter your number:”);

Scanf(“%d”,&n);

For(;fact<=n;++,fact*=i)

If(fact==n)

{

Flag=1;

Break;

}

If(flag)

Printf(“%d is perfect factorial”,n);

Else

Printf(“%d is not a perfect factorial”,n);

Getch();

}

TO CONVERT A LOWER CASE TEXT TO UPPERCASE

#include<stdio.h>

Void main()

{

Int count=0;

Char text[80];

Clrscr();

Text[count]=getchar();

While(text[count]!=’\n’)

{

Count++;

Text[count]=getchar();

}

Count=0;

While(text[count]!=’\n’)

{

Putchar(toupper(text[count]));

Count++;

}

Getch();

TO CONVERT NUMBER OF DAYS INTO YEARS, WEEKS AND DAYS

TO convert a given number of days into to a measure of time given in years weeks and days

#include<stdio.h>

Void main();

{

Int temp,days,week, year,day;

Printf(“enter the number of days:”);

Scanf(“%d”,&days);

Temp=days;

Year=(int)days/365;

Days=days%10;

Week=(int)days/7;

Days=days%7;

Printf(“%d days equals %d year,%d week and %d days”,temp,year,week,day);

Getch();

}

TO CONVERT TEMPERATURE IN DEGREE CELSIUS TO FAHRENHEIT

To accept a temperature in degree Celsius(c) and to display it in degree fahrenheit(f) using the formula f=9.0/5.0*c+32

#include<stdio.h>

Void main()

{

float Celsius,fahrenheit;

clrscr();

printf(“enter temperature in degree Celsius:”);

scanf(“%f”,&celsius);

Fahrenheit=(9.0/5)*Celsius+32;

printf(“%g degree Celsius is %g fahrenheit”,elsius,fahrenheit);

Getch();

}

TO DISPLAY AMSTRONG NUMBERS UP TO A GIVEN NUMBER

#include<stdio.h>

#include<math.h>

Void main()

{

Int sum,num,n,digit,temp;

Clrscr();

Printf(“up to which number ?”);

Scanf(“%d”&n);

Printf(“amstong numbers up to %d are:\n”);

For(num=1;num<=n;+}+num)

{

For(temp=num,sum=0;temp>0;temp/=10)

{

Digit=temp%10;

Sum+=pow(digit,3);

}

If(num==sum)

Printf(“%d\t”,num);

}

Getch();

}

TO DISPLAY EVEN AND ODD NUMBERS WITHIN A RANGE SEPERATELY ALSO DISPLAY THEIR SUM AND AVERAGE

#include<stdio.h>

Void main()

{

Int lower,upper,even,odd,count,temp;

Float evensum=0.0,oddsum=0.0,evenavg,oddavg;

Clrscr();

Printf(“enter the lower bound:”);

Scanf(“%d”,&lower);

Printf(“enter the upper bound:”);

Scanf(“%d”,&upper);

If(lower>upper)

{

Temp=lower;

Lower=upper;

Upper=temp;

}

If(lower%2==0)

Even=lower+2;

Else

Even=lower+1;

Printf(“even numbers between %d and %d are :\n”,lower,upper);

For(count=0;even<upper;even+=2,++count)

{

Printf(“%d\t”,even);

Evensum+=even;

}

Evenavg=avensum/count;

Printf(“sum of the even numbers from %d to %d is %g”,lower,upper,evensum);

Printf(“average of the even numbers from %d to %d is %g\n\n”,lower,upper,evenavg);

if(lower%2=1)

odd=lower+2;

else

odd=lower+1;

printf(“odd numbers from %d to %d are\n”,lower,upper);

for(count=0;odd<upper;odd+=2,++count)

{

Printf(“%d\t”,odd);

Oddsum+=odd;

}

Oddavg=oddsum/count;

Printf(“\nsum of the odd numbers from %d to %d is %g”,lower,upper,oddsum);

Printf(“\naverage of the odd numbers from %d to %d is %g”,lower,upper,oddavg);

Getch();

}

TO DISPLAY THE FIRST ‘N’ RPIME NUMBERS

#include<stdio.h>

#include<math.h>

Void main()

{

Int num,i,n,flag,count=0;

Clrscr();

Printf(“how many prime number ?”);

Scanf(“%d”,&n);

Printf(“first %d prime numbers are :\n”,n);

For(num=2;count<=n;++num)

{

Flag=1;

For(i=2;i<=sqrt(num);++i)

{

if(num%i==0)

{flag=0;

Break;

}

If(flag)

{

Printf(“%d\t”,num);

++count;

}

}

getch();

}

TO DISPLAY THE MULTIPLES OF 5 WITHIN A GIVEN RANGE BOTH THE UPPER & LOWER BOUNDA ARE EXCLUDED

#include<stdio.h>

Void main()

{

Int lower,upper,temp;

Printf(“enter lower bound”);

Scanf(“%d”,&lower);

Printf(“enter upper bound”);

Scanf(“%d”,&upper);

If(lower>upper)

{

Temp=upper;

Upper=lower;

Lower=temp;

}

Printf(“the multiples of 5 between %d and %d are:”,lower,upper);

If(lower%5=0)

Lower=lower+5;

Else

Lower=lower+(5-(lower%5));

For(;lower<upper;lower+=5)

Printf(“%d\t”,lower);

Getch();

}

Data Structures and Algorithm Analysis by Clifford A. Shaffer

Third edition of “Data Structures and Algorithm Analysis in C++” by Dr. Clifford A. Shaffer is available in pdf format for free. This book describes many techniques for representing data.
Description
A comprehensive treatment focusing on the creation of efficient data structures and algorithms, this text explains how to select or design the data structure best suited to specific problems. It uses C++ as the programming language and is suitable for second-year data structure courses and computer science courses in algorithmic analysis.
Contents

• Data Structures and Algorithms
• Mathematical Preliminaries
• Algorithm Analysis
• Lists, Stacks, and Queues
• Binary Trees
• Non-Binary Trees
• Internal Sorting
• File Processing and External Sorting
• Searching
• Indexing
• Graphs
• Lists and Arrays Revisited
• Advanced Tree Structures
• Analysis Techniques
• Lower Bounds
• Patterns of Algorithms
• Limits to Computation

Book Details

Author(s): Clifford A. Shaffer
Format(s): PDF
File size: 2.56 MB
Number of pages: 613
Link: download

#include<stdio.h>
#include<math.h>
main()
{
int i,j,k,r,a[10][10],b[10][10],sum=0,m;
printf("enter a 3/3 matrix\n");
for(i=1;i<=3;i++)
for(j=1;j<=3;j++)
{

printf("enter (%d of %d)\t ",i,j);
scanf("%d",&a[i][j]);
}
printf("your matrix is \n");
for(i=1;i<=3;i++)
{
for(j=1;j<=3;j++)
{
printf("\t%d",a[i][j]);
b[i][j]=0;
}
printf("\n");
}
for(i=1;i<=3;i++)
{
for(j=2,m=1;j<=3;j++,m++)
for(r=1,k=1;k<=3;k++)
if(k!=i)
{
b[m][r]=a[j][k];
r++;
}
sum=sum+pow(-1,i+1)*a[1][i]*(b[1][1]*b[2][2]-b[1][2]*b[2][1]);
}
printf("determinant of matrix is =%d  ",sum);
}

how to transpose a metrix

#include<stdio.h>
main()
{
 int a[10][10],i,j,r,c;
 printf("enter the order of matrix");
 scanf("%d%d",&r,&c);
 printf("enter the elements");
 for(i=1;i<=r;i++)
 {
  for(j=1;j<=c;j++)
   scanf("%d",&a[i][j]);
 }
 printf("the transpose is \n");
 for(i=1;i<=c;i++)
 {
  for(j=1;j<=r;j++)
  {
   printf(" %d",a[j][i]);
  }

 printf("\n");
}
}

TO DISPLAY THE SUM OF INDIVIDAL DIGITS OF A FOUR DIGIT NUMBER

To accept a four digit number and to display the sum of individual digits

#include<stdio.h>

Viod main()

{

Int number,temp,d1,d2,d3,d4,sum;

Clrscr();

Printf(“enter a number”;

Scanf(“%d”,&number);

Temp=number;

D4=number/1000;

Number=number%1000;

D3=number/100;

Number=number%100;

D2=number/10;

D1=number%10;

Sum=d4+d3+d2+d1;

Printf(“sum of individual digits of %d is %d”,temp sum);

Getch();

}

how convert decimal number to hexadecimal number

#include<stdio.h>
main()
{
int i=0,j,n,a[20],m;
char b[]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
printf("enter the decimal number:");
scanf("%d",&n);
m=n;
while(n>0)
{
a[i]=n%16;
n=n/16;
i=i++;
}
printf("hexadecimal equal of %d is =",m);
for(j=i-1;j>=0;j--)
{
printf("%c",b[a[j]]);
}
}

how calculate square root of a number

#include<stdio.h>
float root(float num);
void main()
{
float n,ans;
printf("enter the number:");
scanf("%f",&n);
ans=root(n);
printf("square root of %f=%f",n,ans);
}
float root(float num)
{
if(num>=0)
{
float x=num;
int i;
for(i=0;i<20;i++)
{
x=(((x*x)+num)/(2*x));
}
return x;
}
}

how convert decimal number to hexadecimal number with or without floating point

#include<stdio.h>
main()
{
int i=0,j,a[20],m,c[20],g,f;
char b[]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
float n,e;
printf("enter the decimal number with or without fraction:");
scanf("%f",&n);
m=(int)n;
e=n-m;
while(m>0)
{
a[i]=m%16;
m=m/16;
i=i++;
}
for(f=0;f<=6;f++)
{
e=e*16.0;
c[f]=e;
e=e-c[f];
}
printf("hexadecimal equal\n");
for(j=i-1;j>=0;j--)
{
printf("%c",b[a[j]]);
}
printf(".");
for(g=0;g<f;g++)
printf("%c",b[c[g]]);

}