C Tutor... C Tutorial....: December 2011

C Program on array manipulations

array manipulations in C , C Assignment array manipulations


#include 
main()
{
int a[20],b[20],n,i,j,temp,sb,ss,sbp,ssp;
clrscr();
printf("ENTER HOW MANY ELEMENTS\n");
scanf("%d",&n);
printf("ENTER %d ELEMENTS\n",n);
for (i=0;i<n;i++)
scanf("%d",&a[i]);
for (i=0;i<
b[i]=a[i];
for (i=0;i

{

for (j=i+1;j

if (a[i]

{

   temp=a[i];

   a[i]=a[j];

   a[j]=temp;

}

}

sb=a[1];

ss=a[n-2];

for (i=0;i

{

for (j=i+1;j

{

if (b[i]==sb)

   sbp=i;

if (b[i]==ss)

   ssp=i;

}

}

b[sbp]=ss;

b[ssp]=sb;

printf("AFTER INTERCHANGING THE SECOND BIGGEST ELEMENT AND\n");

printf("THE SECOND SMALLEST ELEMENT THE ARRAY IS\n");

for (i=0;i

printf("%d\n",b[i]);

getch();

}

C Program to find frequency table, frequency table in C Language, C assignment to find frequency table


#include 

main()

{

int a[20],c=0,d=0,i,j=0,n;

clrscr();

printf("ENTER ANY NUMBER\n");

scanf("%d",&n);

printf("ENTER %d NUMBERS\n",n);

for (i=0;i<n;i++)

   scanf("%d",&a[i]);

do

{

    j++;

    for (i=0;i

    if (a[i]==j)

    {

       c++;

       d++;

    }

    if (c!=0)

    {

    printf("%d OCCURED %d TIMES\n",j,c);

    c=0;

    }

}

while(n!=d);

getch();

}

C Program to print the triangle

C Program to print the triangle, creating a triangle in C



#include 

main()

{

int n,i,j,k=5;

clrscr();

printf("ENTER THE NUMVER OF LINES ");

scanf("%d",&n);

for(i=n;i>0;i--)

{

for(j=0;j

   printf(" ");

for(j=1;j<=i;j++)

   printf("%2d",i);

k++;

printf("\n");

}

getch();

}

Program adding two polynomials in C, add two polynomials using array

adding two polynomials in C, C Program to add two polynomials using array, adding two polynomials in C, Addition of 2 polynomials in C


#include
#include
#define MAX 10
struct term
{
   int coeff;
   int exp;
};
struct poly
{
   struct term t[10];
   int totalterms;
};
void initpoly(struct poly*);
void polycreate(struct poly*,int c,int e);
struct poly addpoly(struct poly,struct poly);
void display(struct poly);
void main()
{
   struct poly p1,p2,p3;
   clrscr();
   initpoly(&p1);
   initpoly(&p2);
   initpoly(&p3);
   polycreate(&p1,1,7);
   polycreate(&p1,2,6);
   polycreate(&p1,3,5);
   polycreate(&p1,4,4);
   polycreate(&p1,5,2);
   polycreate(&p2,1,4);
   polycreate(&p2,1,3);
   polycreate(&p2,1,2);
   polycreate(&p2,1,1);
   polycreate(&p2,2,0);
   p3=addpoly(p1,p2);
   printf("\n First polynomial :\n ");
   display(p1);
   printf("\n Second polynomial :\n ");
   display(p2);
   printf("\n\n Resultant Polynomial :\n");
   display(p3);
   getch();
}
/* Initializes elements of struct poly */
void initpoly(struct poly *p)
{
   int i;
   p->totalterms=0;
   for(i=0;i   {
      p->t[i].coeff=0;
      p->t[i].exp=0;
   }
}

/* Add the term of polynomial to the array t */
void polycreate(struct poly *p,int c,int e)
{
  p->t[p->totalterms].coeff=c;
  p->t[p->totalterms].exp=e;
  (p->totalterms)++;
}

/* DISPLAY the polynomial equation */
void display(struct poly p)
{
   int flag=0,i;
   for(i=0;i   {
      if(p.t[i].exp != 0)
  printf("%d x^%d + ",p.t[i].coeff,p.t[i].exp);
      else
      {
  printf("%d",p.t[i].coeff);
  flag=1;
      }
   }
   if(!flag)
     printf("\b\b");
}
/* ADD two polynomials p1 and p2 */
struct poly addpoly(struct poly p1,struct poly p2)
{
   int i,j,c;
   struct poly p3;
   initpoly(&p3);
   if(p1.totalterms>p2.totalterms)
      c=p1.totalterms;
   else
      c=p2.totalterms;
   for(i=0,j=0;i<=c;p3.totalterms++)
   {
      if(p1.t[i].coeff==0 && p2.t[j].coeff==0)
      break;
      if(p1.t[i].exp>=p2.t[j].exp)
      {
 if(p1.t[i].exp==p2.t[j].exp)
 {
    p3.t[p3.totalterms].coeff=p1.t[i].coeff + p2.t[j].coeff;
    p3.t[p3.totalterms].exp=p1.t[i].exp;
    i++;
    j++;
 }
 else
 {
    p3.t[p3.totalterms].coeff=p1.t[i].coeff;
    p3.t[p3.totalterms].exp=p1.t[i].exp;
    i++;
 }
      }
   else
   {
      p3.t[p3.totalterms].coeff=p2.t[j].coeff;
      p3.t[p3.totalterms].exp=p2.t[j].exp;
      j++;
   }
  }
  return p3;
}

Program to show the use of static variables in C Language



#include
#incl.ude
void stat();
void main()
{
    int c;
    clrscr();
     for(c=1;c<=3;c++)
     stat();
     getch();
}

void stat()
{
  static int sv=0;
  sv=sv+1;
  printf("%d\n",sv);
}

Mouse Programming in C,mouseposi, mousehide, mouseposi, setposi Function in C





#include
         #include
         #include
         #include
         union REGS in,out;

         int callmouse()
          {
                 in.x.ax=1;
                 int86(51,&in,&out);
                 return 1;
          }
         void restrictmouseptr(int x1,int y1,int x2,int y2)
          {
                 in.x.ax=7;
                 in.x.cx=x1;
                 in.x.dx=x2;
                 int86(51,&in,&out);
                 in.x.ax=8;
                 in.x.cx=y1;
                 in.x.dx=y2;
                 int86(51,&in,&out);
          }
         int main()
          {
                 int x,y,cl,a,b;
                 clrscr();
                 int g=DETECT,m;
                 initgraph(&g,&m,"c:\tc\bgi");
                 rectangle(100,100,550,400);
                 callmouse();
                 restrictmouseptr(100,100,550,400);
                 getch();
          }

callmouse() Function in C

callmouse() Function in C

callmouse() :- In this function AX is set to "1". When this function is called in main() it displays the mouse pointer. The position of the pointer can be changed by using the mouse.

C Program to Find prime numbers in an array using function

C Program to Find prime numbers in an array using function, find Prime Numbers from array, given array find prime numbers, Prime Number calculation from array



#include
int prime(int n)
{
int i,flag=1;
for(i=2;i<=n/2;i++)
{
if(n%i==0)
{
flag=0;
break;
}
}
return flag;
}

main()
{
int arr[50],l,i,count=0;
printf(“Enter number of elementsn”);
scanf(“%d”,&l);
printf(“Enter %d numbersn”,l);
for(i=0;i<l;i++)
{
scanf(“%d”,&arr[i]);
}
for(i=0;i<l;i++)
{
if(prime(arr[i])==1)
count++;
}
if(count==0)
{
printf(“There are no prime numbers in the listn”);
}
else
{
printf(“There are %d prime number(s) in the listn”,count);
for(i=0;i<l;i++)
{
if(prime(arr[i])==1)
printf(“%dn”,arr[i]);
}
}
}

C PROGRAM TO READ A FLOATING POINT NUMBER AND DISPLAYS THE RIGHT MOST DIGIT OF THE INTEGRAL PART OF THE NUMBER


#include
main()
{
float num;
int ip,rm;
printf(“Enter a floating point number”);
scanf(“%f”,&num);
ip=(int)num;
rm=ip%10;
printf(“Right most digit of integral part=%dn”,rm);
}

C program using do…while loop to print the first m Fibonacci numbers, Fibonacci numbers Series

#include
main()
{
int a=1,b=1,c=0,m,i=0;
printf(“Enter limitn”);
scanf(“%d”,&m);
do
{
printf(“%dt”,a);
i++;
c=a+b;
a=b;
b=c;
}
while(i

C program to convert a decimal number to binary number, decimal number to binary number Conversion in C, C assignment to convert Decimal to binary


#include
main()
{
int tenpow=1,num,i,bin=0;
printf(“Enter a decimal number”);
scanf(“%d”,&num);
do
{
bin+=(num%2)*tenpow;
tenpow*=10;
num/=2;
}
while(num>0);
printf(“Binary equivalent=%dn”,bin);

}

c assignment to find the sum of primary diagonal of a matrix




#include
void main()
{
      int A[5][5],i,j,m,n,sum = 0;
      clrscr();
      printf("\n\n\t ENTER A ORDER OF THE MATRIX M,N...: ");
      scanf("%d,%d",&m,&n);
      printf("\n\n\t ENTER THE ELEMENTS OF THE MATRIX..:\n\n");
      if(m == n)
      {
            for(i=1;i<=m;i++)
            {
                 for(j=1;j<=n;j++)
                 {
                       gotoxy(20+j*4,12+i*2);
                       scanf("%d",&A[i][j]);
                 }
                 printf("\n");
            }
            for(i=1;i<=m;i++)
                 sum = sum + A[i][i];
            printf("\n\t THE SUM OF PRIMARY DIAGONAL OF A MATRIX IS...: %d", sum);
      }
      else
      {
            printf("\n\t THE ORDER OF THE MATRIX IS NOT CORRECT");
            printf("\n\n\t HELP : 'M' SHOULD BE EQUAL TO 'N'");
       }
       getch();
}

C Program to find the sum of the cos series

C Program to find the sum of the cos series , COS series in C, C Language Cos Series calculation.



#include
#include
void main()
{
      float pow = 2.0, nr, dr = 1.0, x1, sum;
      int i = 1,n,s = -1,x;
      clrscr();
      printf("\n\n\t ENTER THE ANGLE...: ");
      scanf("%d", &x);
      x1 = 3.142 * (x / 180.0);
      sum = 1.0;
      nr = x1*x1;
      printf("\n\t ENTER THE NUMBER OF TERMS...: ");
      scanf("%d",&n);
      while(i<=n)
      {
            dr = dr * pow * (pow - 1.0);
            sum = sum + (nr / (dr * s));
            s = s * (-1);
            pow = pow + 2.0;
            nr = nr * x1 * x1;
            i++;
      }
      printf("\n\t THE SUM OF THE COS SERIES IS..: %0.3f", sum);
      getch();
}

C Program to find the sum of the sine series

C Program to find the sum of the sine series , Sine Series In C, Sum of Sine Series In C Language, C Assignment to find Sin Series in C .

#include
#include
#include
void main()
{
     int i = 2, n, s = 1, x, pwr = 1, dr;
     float nr = 1, x1, sum;
     clrscr();
     printf("\n\n\t ENTER THE ANGLE...: ");
     scanf("%d", &x);
     x1 = 3.142 * (x / 180.0);
     sum = x1;
     printf("\n\t ENTER THE NUMBER OF TERMS...: ");
     scanf("%d", &n);
     while(i <= n)
     {
         pwr = pwr + 2;
         dr = dr * pwr * (pwr - 1);
         sum = sum + (nr / dr) * s;
         s = s * (-1);
         nr = nr * x1 * x1;
         i+= 2;
     }
     printf("\n\t THE SUM OF THE SINE SERIES IS..: %0.3f",sum);
     getch();
}

C Assignment to Find Given Year leap year or Not


#include
#include
void main()
{
 int yr;
 clrscr();
 printf("Please enter the year");
 scanf("%d",&yr);
 if((yr%400==0)&&(yr/4==0))
  printf("leap year");
 else
  printf("not leap year");
 getch();
}

Program to Check whether First number is divisible by second number or not



#include
#include
void main()
{
 int n1,n2;
 clrscr();
 printf("enter the values of Number1 and Number 2");
 scanf("%d %d",&n1,&n2);
 if(n1%n2==0)
  printf("First no is divisible by second");
 else
  printf("Sorry !!! not divisible");
 getch();
}

Program to Check whether First number is divisible by second number or not

C Program to print ASCII value of given character



#include
#include
void main()
{
 char ch;
 clrscr();
 printf("please enter any character");
 scanf("%c",&ch);
 printf("The ASCII Value =%d",ch);
 getch();
}

C Program to Perform Arithmetic operations



#include
#include
void main()
{
  int a,b,add,sub,mul,div;
  clrscr();
  printf("Enter any 2 numbers");
 scanf("%d %d", &a,&b);
  add=a+b;
  printf("The addition of numbers=%d",add);
  sub=a-b;
  printf("The substraction of number=%d",sub);
  mul=a*b;
  printf("The multiplication of number=%d",mul);
  div=a/b;
  printf("The division of numbers=%d",div);
  getch();
}

C Program to find absolute value



#include
#include
void main()
{
  int a,b;
  clrscr();
  printf("enter the value of a");
  scanf("%d",&a);
  if(a<0)
  {
   b=a*-1;
   printf("\nabsolute value of %d is %d",a,b);
  }
  else
   {
     printf("\nabsolute value=%d",a);
   }
   getch();
}

C Program to calculate Discount in Bill



#include
#include
main()
{
 float ttamt,qnt,rate,dis;
 clrscr();
 printf ("enter the value of rate and qty");
 scanf ("%f%f",&rate,&qnt);
 ttamt=qnt*rate;
 if(ttamt>2000)
{
 ttamt=ttamt-(ttamt*10)/100;
 printf("    \n ttamt=%f",ttamt);
}
 else
{


 printf("  \n ttamt=%f",ttamt);
}
 getch();
}

Convert string to integer without using library functions in c




#include
int stringToInt(char[] );
int main(){
  
    char str[10];
    int intValue;

    printf("Enter any integer as a string: ");
    scanf("%s",str);

   intValue = stringToInt(str);

    printf("Equivalent integer value: %d",intValue);

    return 0;
}

int stringToInt(char str[]){
    int i=0,sum=0;

    while(str[i]!='\0'){
         if(str[i]< 48 || str[i] > 57){
             printf("Unable to convert it into integer.\n");
             return 0;
         }
         else{
             sum = sum*10 + (str[i] - 48);
             i++;
         }

    }

    return sum;

}

C Program to print STAR PATTERNS and pyramids

C Program to print STAR PATTERNS and PYRAMIDS



main() 
{ 
          char prnt = '*'; 
          int i, j, k, s, c = 1, numb = 9;
          for (i = 1; c <= 4; i++) 
         {    
                   if ((i % 2) != 0)  
                   {  
                           for (j = 1; j <= i; j++) 
                           { 
                                 printf("%2c", prnt);
                           }for (s = numb; s >= 1; s--) 
                             {  
                                  if (c == 4 && s == 1) 
                                  {     
     break;    
      }   
            printf("  ");   
}  
            for (k = 1; k <= i; k++)
           {   
                 if (c == 4 && k == 5) 
                {     
   break;    
  }   
                 printf("%2c", prnt); 
             }   
     printf("\n"); 
                   numb = numb - 4;  
                  ++c;  
                   } 
            } 
}

C Program to evaluate the power series

C Program to evaluate the power series , power of series in C, C Assignment to calculate power of series


#include
#include
#define EXA 0.0001
void main()
{
int n,count;
float x,term,sum;
printf("Please Enter value of x : ");
scanf("%f",&x);
n=term=sum=count=1;
while(n<=100)
{
 term=term*(x/n);
 sum=sum+term;
 count=count+1;
 if(term<EXA)
 n=999;
 else
 n=n+1;
}
printf(" TERMS = %d SUM = %f\n",count,sum);
getch();
}

C Program to print asterisk, star patterns

main()
{
  char prnt = '*';
  int i, j, numb = 4, k;
  for (i = 1; i <= 5; i++)   {       for (k = numb; k >= 1; k--)
     {
        
             printf("  "); // Spacing factor 
     }
     for (j = 1; j <= i; j++)       {           printf("%2c", prnt);       }         printf("\n");    --numb;       } getch(); }