100 programs in c language serial wise

                                                         

                      C Language  programs      

 // 1:) write a c program  print  values in c compile  and runtime.

#include<stdio.h>            

#include<conio.h>

int main()

{

int a=5,numberINT;

float b=6.8,numberFLOAT;

char c='A';

char chracter[20];

   printf(" a is = %d",a);  //static 

   printf("\nenter the numberINT ");

   scanf("\n %d",&numberINT);

   printf("\n numberINT is %d",numberINT);

  

   printf("\n numberFLOAT is = %f",b);

   printf("\n enter the numberFLOAT ");

   scanf("\n %f",&numberFLOAT);

   printf("\nnumber  is = %f",numberFLOAT);

   printf("chracter is %c",c);

   printf("\nenter the chracter");

   scanf(" %s",&chracter);

   printf("chracter is  is = %s",chracter);

   getch();

   return 0;

}

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//2:)  write a c program Swap two number without using third variable

#include<stdio.h>            
#include<conio.h>
int main()
{ 
int a=10,b=20;
printf("Before swaping number is a = %d  AND  b = %d ",a,b);
a=a+b;
b=a-b;
a=a-b;
printf("\nAfter swaping number is a = %d  And b = %d",a,b);
getch();
return 0;
}

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//3:) Write a program in c find  simple interest.

#include<stdio.h>

#include<conio.h>

int  main()

{

float simple_interest,p,r,t;

printf("enter the p ");

scanf(" %f",&p);

printf(" enter the r ");

scanf(" %f",&r);

printf(" enter the t ");

scanf(" %f",&t);

simple_interest=(p*r*t)/100;

printf("\n simple_interest is %f",simple_interest);

getch();

return 0;

}

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//4:) write  a c program  area of traingle.

#include<stdio.h>

#include<conio.h>

int  main()

{ 

float h,b,Area_of_traingle;

printf("enter the height ");

scanf(" %f",&h);

printf("enter the base ");

scanf(" %f",&b);

Area_of_traingle=0.5*(b*h);

    printf("Area_of_traingle %f",Area_of_traingle);

    getch();

    return 0;

} 

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//5:) write a c program area of rectangle.

#include<stdio.h>

#include<conio.h>

int  main()

{

float l,w,Area_of_rectangle;

printf("enter the length ");

scanf(" %f",&l);

printf("enter the width ");

scanf(" %f",&w);

Area_of_rectangle=l*w;

    printf("Area_of_rectangle %f",Area_of_rectangle);

    getch();

    return 0;

} 

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//6:) write a c program using getchar,putchar,gets,puts unformeted functions. 

#include<stdio.h>

#include<conio.h>

int  main()

{ 

  char a,b;

  char str[30];

  printf("enter the chracter  a and b   ");

  a=getch();

  b=getche();

  printf("\n");

  putch(a);              

  printf("\n");

  putch(b);

 printf("\n enter the string  ");

 gets(str);

 printf("\n");

 puts(str);

  getch();

  return 0;

} 

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OUTPUT

NOTE : IN this output i also enter a but it is not seen.

//7:) write a c program  use coma operator.

#include<stdio.h>

#include<conio.h>

int  main()

{ 

int m,n;

printf("enter the value of N\n");

scanf("%d",&n);

m=(n,n-4);

printf("after use %d ",m);

getch();

}

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//8:) write a c program global , local  variable

#include<stdio.h>

#include<conio.h>

int a=10;

int  main()

{

 printf("%d",a); 

  int a=4;

 printf("\n%d",a);

 getch();

 return 0;

}

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//9:) write a program area of circle.

#include<stdio.h>

#include<conio.h>

int  main()

{

float pi=3.14,area_of_circle,r;

printf("enter the radious of circle ");

scanf("%f",&r);

area_of_circle=pi*r*r;

    printf("area_of_circle %f",area_of_circle);

    getch();

    return 0;

}

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// 10:) write a program for gross salary.

#include<stdio.h>

#include<conio.h>

int  main()

{

float salary,ta,da,hra,gross_salary;

printf("enter the salary ");

scanf(" %f",&salary);

ta=(salary*10)/100;

da=(salary*12)/100;

hra=(salary*15)/100;

gross_salary=salary+ta+da+hra;

    printf("gross salary is = %f",gross_salary);

    getch();

    return 0;

}

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// 11:) write a program print ASCII value of latters.

#include<stdio.h>

#include<conio.h>

int  main()

{

char ch;

printf("enter any character =");

scanf(" %c",&ch);

printf("ASCII VALUE OF character %d",ch);

getch();

return 0;

}

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// 12:) write a program use goto statement .                                       

#include<stdio.h>

#include<conio.h>

int  main()

{

  int n;

  printf("enter any number = ");

  scanf("%d",&n);

  if(n <= 10) 

  {

  goto lessthen10;

  }

  printf("simple line ");

  printf("never move");

  lessthen10:

  printf("less then 10");

  getch();

  return 0;

 }

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 13:) write a program use all arithmetic operators. 

#include<stdio.h>

#include<conio.h>

int  main()

{

int a=10,b=5;

    int sum,sub,mul,div,mod;

    sum=a+b;

    sub=a-b;

    mul=a*b;

    div=a/b;

    mod=a%b;

    printf("addtion of a and b = %d \n",sum);

    printf("subtraction of a and b = %d \n",sub);

    printf("multiplication of a and b = %d \n",mul);

    printf("division of a and b = %d \n",div);

    printf("modulas of a and b = %d \n",mod);

    getch();

    return 0;

}    

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// 14:)write a program use all Relation operators in c.

#include<stdio.h>

#include<conio.h>

int  main()

{

    int x;

    printf("enter any number ");

    scanf("%d",&x);

    printf("x < 10 for true 1 ,false 0, output = %d \n",(x<10));

    printf("x > 10 for true 1 ,false 0, output = %d \n",(x>10));

    printf("x <= 10 for true 1 ,false 0, output = %d \n",(x<=10));

    printf("x >= 10 for true 1 ,false 0, output = %d \n",(x>=10));

    printf("x == 10 for true 1 ,false 0, output = %d \n",(x==10));

    printf("x != 10 for true 1 ,false 0, output = %d \n",(x!=10));

    getch();

    return 0;

}

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//15:) write a program use logical operators in c.

#include<stdio.h>

#include<conio.h>

int  main()

{

    int x;

    // logical And operator 

    x=(10<1) && (10<5);

    printf("x=(10<1) && (10<5) true 1,false 0, output = %d \n",x);

    x=(10<1) && (10>5);

    printf("x=(10<1) && (10>5) true 1 ,false 0, output = %d \n",x);

    x=(10>1) && (10<5);

    printf("x=(10>1) && (10<5) true 1 ,false 0, output = %d \n",x);

    x=(10>1) && (10>5);

    printf("x=(10>1) && (10>5) true 1 ,false 0, output = %d \n",x);

    // logical or operator 

    x=(10<1) || (10<5);

    printf("\n x=(10<1) || (10<5) true 1,false 0, output = %d \n",x);

    x=(10<1) || (10>5);

    printf("x=(10<1) || (10>5) true 1 ,false 0, output = %d \n",x);

    x=(10>1) || (10<5);

    printf("x=(10>1) || (10<5) true 1 ,false 0, output = %d \n",x);

    x=(10>1) || (10>5);

    printf("x=(10>1) || (10>5) true 1 ,false 0, output = %d \n",x);

    // logical not operator 

    x=!(5>3);

    printf("\n !(5>3) = %d",x);

    x=!(5<2);

    printf("\n !(5>2) = %d",x);

    getch();

    return 0;

}

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// 16:) write  a program use assignment operator in c.

#include<stdio.h>

#include<conio.h>

int  main()

{

    int a,b,c;

    int p,q,r,s,t;

    a=10;

    b=a;

    c=a+b;

    printf("a value = %d\n b value = %d\n c value = %d",a,b,c);

    t=7;

    p=q=r=s=t;

    printf("\n p value = %d\nq value = %d\nr value = %d\ns value = %d\nt value = %d",p,q,r,s,t);

    getch();

    return 0;

}

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// 17:) write a program use short hand assignment operator

#include<stdio.h>

#include<conio.h>

int  main()

{

    int n=20;

    printf("number is %d\n",n);

    n+=10;

    printf("n+=10 number is %d\n",n);

    n-=20;

    printf("n-=20 number is %d\n",n);

    n*=10;

    printf("n*=10 number is %d\n",n);

    n/=10;

    printf("n/=10 number is %d\n",n);

    n%=3;

    printf("n%=3 number is %d\n",n);

    getch();

    return 0;

}  

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// 18:) write a program prefix and postfix operator.

#include<stdio.h>

#include<conio.h>

int  main()

{

   int a=8;

   printf("a  value when a++ = %d\n",a++);

   printf("a value after a++ = %d\n",a);

   printf("a value when ++a = %d\n",++a);

   printf("a value after ++a = %d\n",a);

   

   

   printf("a  value when a-- = %d\n",a--);

   printf("a value after a-- = %d\n",a);

   printf("a value when --a = %d\n",--a);

   printf("a value after --a = %d\n",a);

getch();

return 0;

}

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// 19:)wirte a program use all bitwise operator in c. 

#include<stdio.h>
#include<conio.h>
int main()
{
     int a=3,b=6,c;
     printf("value of a = %d\n,value of b = %d\n",a,b);
     c=a&b;
     printf("a&b is = %d\n",c);
     c=a|b;
     printf("a|b is = %d\n",c);
     c=a^b;
     printf("a^b is = %d\n",c);
     c=~a;
     printf("~a is = %d\n",c);
     c=a<<3;
     printf("a<<3 is = %d\n",c);
     c=b>>2;
     printf("b>>2 is = %d\n",c);
    getch();
    return 0;
}

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// 20:) write a program use size of operator in c.

#include<stdio.h>

#include<conio.h>

int main()

{

    int a=100,b;

    b=sizeof(a);

    printf("a size is = %d\n",a);

    b=sizeof(double);

    printf("size of double = %d\n",b);

    b=sizeof(float);

    printf("Size of float = %d\n",b);

    b=sizeof(char);

    printf("size of char = %d\n",b);

    b=sizeof(123L);

    printf("size of 123L = %d\n",b);

    b=sizeof(123.56);

    printf("size of 123.56 = %d\n",b);

    b=sizeof(123.54f);

    printf("size of 123.54f = %d\n",b);

    b=sizeof(long double);

    printf("size of long double = %d\n",b);

    b=sizeof(long int);

    printf("long int size = %d\n",b);

getch();

return 0;

}

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// 21:) write a program use conditional operator in c.

#include<stdio.h>
#include<conio.h>
int main()
{
int a,b,maximumvalue;
printf("enter two numbers\n");
scanf("%d %d",&a,&b);
maximumvalue = (a>b) ? a : b;
printf("\n maximum value is = %d",maximumvalue);
getch();
return 0;
}

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// 22:) write a program on emplicit conversion and  explicit conversion..

#include<stdio.h>

#include<conio.h>

int main()

{

int a=10,b=20,z=3;

float c=10.50,output;

long d=20L,e;

e=((a+c)*d)+b;

printf("value in implicit conversion = %ld \n",e);

e=(((long)a+(long)c)*d)+(long)b;

printf("value in explicit conversion = %ld  \n",e);

    output=a/z;

    printf("without casting = %f",output);

    output=(float)a/z;

    printf("\n after casting = %f",output);

    getch();

    return 0;

}

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// 23:) write a program use simple if,else condition find maximum number.

#include<stdio.h>

#include<conio.h>

int main()

{

int a=20,b=25;

if(a>b)

printf("a is greater");

else

printf("b is greater");

getch();

return 0;

}

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// 24:) write a program use nested if.

#include<stdio.h>
#include<conio.h>
int main()
{
int a=10,b=24,c=12;
printf("a=10 ,b=24 ,c=12");
if(a>b)
   if(b>c)
      printf(" a is greater");
if(b>a)
    if(b>c)
        printf(" b is greater");
if(c>a)
     if(c>b)
         printf(" c is greater");
    getch();
    return 0;
}

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// 25:) write a program use else if lader leapyear program.

#include<stdio.h>
#include<conio.h>
int main()
{
int year;
    printf("enter any year  ");
    scanf(" %d",&year);
    if(year%400==0)
       {
        printf("year is leap year %d \n",year);
       }
    else if(year%100==0)
        {
          printf("year is not leap year  %d \n",year);
         }
    else if(year%4==0)
          {
          printf("year is leap year %d \n",year);
          }                
    else
       printf("year is not leap year %d",year);
           
  getch();
  return 0;
}

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// 26:) write a program check character is vowel or not.

#include<stdio.h>
#include<conio.h>
int main()
{
char character;
printf("enter any chracter ");
scanf("%c",&character);
if((character == 'a')||(character == 'e')||(character == 'i')||(character == 'o')||(character == 'u')||(character == 'A')||(character == 'E')||(character == 'I')||(character=='O')||(character=='U'))
         printf("character  is vowel \n");
    else
    printf("not a vowel\n");
    getch();
    return 0;
}  

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// 27:) write a program find type of any chracter.

#include<stdio.h>

#include<conio.h>

#include<ctype.h>

int main()

{

char c;

printf("enter any character : >>>\n");

scanf("%c",&c);

if(isupper(c))

printf("it is uppercase \n");

else if(islower(c))

printf("it is lowercase\n");

else if(isdigit(c))

printf("it is digit\n");

else 

printf("it is special character");

getch();

}

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//28:) write a program in c to make a calculator using if else

#include<stdio.h>
#include<conio.h>
int main()
{
int a,b,c;
char ch;
printf("enter the frist number ");
scanf("%d",&a);
printf("enter the second number ");
scanf("%d",&b);
printf("use for addtion = + \n subtraction = - \n multiplication = * \n devision = / \n modulas = %\n");
fflush(stdin);
scanf("%c",&ch);
if(ch=='+')
 {
    c=a+b;
    printf("\n addtion is %d",c);
 }
else if(ch=='-')
{
      c=a-b;
      printf("\n subtraction is %d",c);
}
else if(ch=='*')
{
c=a*b;
printf("\n multiplication is %d",c);
}
else if(ch=='/')
{
c=a/b;
printf("\n devision is %d",c);
}
else if(ch=='%')
{
c=a%b;
printf("\n modulas is %d",c);
}
getch();
return 0;
}

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//29:) write a c program use for loop print any table.

#include<stdio.h>

#include<conio.h>

int main(){

int i,n,t;

printf("enter the number for table ");

scanf("%d",&n);

for(i=1;i<=10;i++)

{

t=n*i;

printf("%d\n",t);

}

    getch();

    return 0;

} 

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//29:) write a c program use nested for loop print table 1 to 10 .

#include<stdio.h>

#include<conio.h>

int main(){

int i,n,t;

printf("1 to 10 table\n");

for(i=1;i<=10;i++)

{

for (int j = 1; j <= 10 ; j++)

          {

t=i*j;

printf("%d\t",t);

}

printf("\n");

}

    getch();

    return 0;

} 

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//30:)write a program find factorial of any number.

#include<stdio.h>

#include<conio.h>

int main()

{

int n,fact=1,i;

printf("enter any number ");

scanf("%d",&n);

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

{

fact=fact*i;

}

printf("ans is : %d",fact);

getch();

return 0;

}

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//31:)write a program find number is prime or not.

#include<stdio.h>

#include<conio.h>

int main()

{

int n,i,f=0;

printf("enter the any number ");

scanf("%d",&n);

for(i=2;i<n;i++)

{

if(n%i==0)

f=1;

}

if(f==0)

printf("number is prime");

else

printf("number is not prime");

getch();

return 0;

} 

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//32:) write a program find reverse number of a digit. 

#include<stdio.h>

#include<conio.h>

int main()

{

int n,i,rev=0,temp;

printf("enter the any number ");

scanf("%d",&n);

temp=n;

while(n>0)

{

      rev=n%10;

      n=n/10;

      printf("%d",rev);

}

getch();

return 0;

} 

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//33:) write a program check number is panilidrom or not.

#include<stdio.h>

#include<conio.h>

int main()

{

int n,i,rev=0,temp,num;

printf("enter the any number ");

scanf("%d",&n);

temp=n;

while(n>0)

{

      num=n%10;

      rev=rev*10+num;

      n=n/10;

}

if(temp==rev)

printf("number is panilidrom");

else

printf("number is not panilidrom");

getch();

return 0;

}

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//34:) write a program check number is armstrong or not.

#include<stdio.h>

#include<conio.h>

int main()

{

int n,i,rev=0,temp,num;

printf("enter the any number ");

scanf("%d",&n);

temp=n;

while(n>0)

{

      num=n%10;

      rev=rev+num*num*num;

      n=n/10;

}

if(temp==rev)

printf("number is panilidrom");

else

printf("number is not panilidrom");

getch();

return 0;

} 

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//35:) write a program find sum of 1+2+3+4+5+6+7+....n .

#include<stdio.h>

#include<conio.h>

int main()

{

int n,i;

int sum=0;

printf("enter the range of numbers n ");

scanf("%d",&n);

sum=(n*(n+1))/2;

printf("sum of series is \n");

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

{

if(i!=n)

   printf("%d + ",i);

else

printf("%d = %d ",i,sum);

}

getch();

return 0;

}

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//36:) write a program print fibonacci series.

#include<stdio.h>
#include<conio.h>
int main()
{
int n,i,a=0,b=1,sum;
printf("enter the range of series \n");
scanf("%d",&n);
printf("%d , %d",a,b);
for(i=2;i<n;i++)
{
      sum=a+b;
      printf("\t %d",sum);
      a=b;
      b=sum;
}
 getch();
 return 0;
}

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'

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//37:) write a program calculate and print power of given number.

#include<stdio.h>

#include<conio.h>

int main()

{

int i,a,b,p=1;

printf("enter the base \n");

scanf("%d",&a);

printf("enter the power \n");

scanf("%d",&b);

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

{

      p=p*a;

}

printf("ans is : %d ",p);

 getch();

 return 0;

}

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// 38:) write a program calculate the digit of any number.

#include<stdio.h>

#include<conio.h>

int main()

{

int n,rev,temp,sum=0;

printf("enter the any number ");

scanf("%d",&n);

while(n!=0)

{

      rev=n%10;

      sum=sum+rev;

      n=n/10; 

}

printf("sum is %d",sum);

getch();

return 0;

}

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// 39:) write  a program calculate occurrences of digit.

#include<stdio.h>

#include<conio.h>

int main()

{

  int n,r,s,c=0;

  printf("enter the number");

  scanf("%d",&n);

  printf("enter the digit which you want to count ");

  scanf("%d",&s);

  while(n!=0)

  {

  r=n%10;

  if(r==s)

  {

  c++;

  }

  n=n/10;

  }

  printf("the occurrences of %d is = %d",s,c);

  getch();

  return 0;

}

PROGRAM PICTURE:

OUTPUT:

//40:)write  a c program find a day from week    using  switch  case.

#include<stdio.h>
#include<conio.h>
int main()
{
 int day;
 printf("enter  day number \n");
 scanf("%d",&day);
 switch(day)
 {
  case 1:
  {
  printf("Monday");
  break;
  }
  case 2:
  {
  printf("Tuesday");
  break;
  }
  case 3:
  {
  printf("Wednesday");
  break;
  }
  case 4:
  {
  printf("Thursday");
  break;
  }
  case 5:
  {
  printf("Friday");
  break;
  }
  case 6:
  {
  printf("Saturday");
  break;
  }
  case 7:
  {
  printf("Sunday");
  break;
  }
  default:
  {
  printf("you   choose  invalid  day  number");
  }
 }
 printf("\n        have  a nice day");
 getch();
 return 0;
}

PROGRAM PICTURE:

OUTPUT: