All C program
Write a C program to print ‘Hello World’ on screen.
#include <stdio.h> #include <conio.h> |
void main() |
{ |
Printf(“hello
World”) |
} |
Output: Hello World |
Write a ‘C’ Program To Swap the values between two
variable.
#include <stdio.h> |
void main() |
{ |
int a,b,t; // variable 't' for temporary use. |
printf("Enter values of 'A' and 'B' = "); |
scanf("%d%d",&a,&b); |
t=a; |
a=b; |
b=t; |
printf("A=%d B=%d",a,b); |
} |
Output Enter values of 'A' and 'B' = 10 20 A=20 B=10. |
Write a ‘C’ Program To addition and Subtraction of
two numbers.
#include <stdio.h> |
void main() |
{ |
int x,y,sum; |
printf("Enter Two
Integers : "); |
scanf("%d%d",&x,&y); |
sum=x+y; |
printf("\nAddition = %d",sum); |
} |
Output:
Enter Two
Integers : 12
54
Addition = 66
Write a ‘C’ To Multiplication and Division of two
number.
#include <stdio.h> #include <conio.h> |
void main() |
{ |
int x,y,mul; |
float div; |
printf("Enter Two
Integers : "); |
scanf("%d%d",&x,&y); |
mul=x*y; |
div=x/y; |
printf("\nMultiplication= %d\nDivision=
%f",mul,div); |
} Output: Enter Two Integers
:100 10 Multiplication = 1000 Division = 10.000000 |
Write a ‘C’ to calculate area and perimeter of
circle from user input radius.
#include
<stdio.h> #include <conio.h> |
void main() |
{ |
int r; |
float area,perimeter; |
printf("Enter The Radius of Circle : "); |
scanf("%d",&r); |
area=3.14*r*r; |
perimeter=2*3.14*r; |
printf("\nArea =%f\nPerimeter=%f",area,perimeter); |
} Output Enter The
Radius of Circle :3 Area =
28.26000 Perimeter
= 18.840000 |
Write a ‘C’ to calculate Sum and Average by
reading 3 integer from user input.
#include <stdio.h> #include <conio.h> |
void main() |
{ |
int x,y,z,sum; |
float avg; |
printf("Enter Three
Integers : "); |
scanf("%d%d%d",&x,&y,&z); |
sum=x+y+z; |
avg=sum/3.0; //3.0 to
store float value |
printf("\nSum =%d\nAverage =%f",sum,avg); |
} Output: Enter Three Integers
: 10 20 30 Sum = 60 Average = 20.000000 |
Write a ‘C’ to read Celsius from user input and
convert it into Fahrenheit.
#include <stdio.h> #include <conio.h> |
void main() |
{ |
float c,f; |
printf("Enter
Temperature in Celsius : "); |
scanf("%f",&c); |
f=c*9/5+32; |
printf("\nFahrenheit = %f",f); |
} Output: Enter Temperature
in Celsius : 40 Fahrenheit = 104.00000 |
Write a ‘C’ to checked number entered by user is
Positive or Negative.
#include <stdio.h> #include <conio.h> |
void main() |
{ |
int x; |
printf("Enter The Number
: "); |
scanf("%d",&x); |
if(x>0) |
{ |
printf("\n%d is Positive Integer ",x); |
} |
if(x<0) |
{ |
printf("\n%d is Negative Integer ",x); |
} |
} Output: Enter The Number :554 544 is Positive
Integer |
Write a ‘C’ to find greatest number among entered
2 input value
#include <stdio.h> #include <conio.h> |
void main() |
{ |
int x,y; |
printf("Enter Two Number
: "); |
scanf("%d%d",&x,&y); |
if(x>y) |
{ |
printf("\n%d is Greatest Number ",x); |
} |
if(x<y) |
{ |
printf("\n%d is Greatest Number ",y); |
} |
} Output: Enter Two Number :
765 698 765 is Greatest
Number |
To Print Appropriate Message
If Pressed… |
Message |
A |
Excellent |
B |
Very Good |
C |
Fair |
D |
Poor |
#include
<stdio.h> #include <conio.h> |
void main() |
{ |
char c; |
printf("Enter The
Character : "); |
scanf("%c",&c); |
if(c=='A') |
{ |
printf("\nExcellent"); |
} |
if(c=='B') |
{ |
printf("\nVery Good"); |
} |
if(c=='C') |
{ |
printf("\nFair"); |
} |
if(c=='D') |
{ |
printf("\nPoor"); |
} |
} Output: Enter
The Character : B Very Good |
Write a ‘C’ to determine even or Odd integers by
user input
#include<stdio.h> #include <conio.h> |
void main() |
{ |
int n=2; |
printf("Enter The Number
: "); |
scanf("%d",&n); |
if(n%2==0) |
{ |
printf("\n%d is Even Number",n); |
} |
else |
{ |
printf("\n%d is odd number",n); |
} |
} Output: Enter The Number : 7 7 is odd number |
Write a ‘C’ to check complete divisibility of
number entered by user.
#include<stdio.h> |
void main() |
{ |
int n,div; |
printf("\nEnter The Number : "); |
scanf("%d",&n); |
printf("\nEnter The Divisor : "); |
scanf("%d",&div); |
if(n%div==0) |
{ |
printf("\n%d is completely divisible by %d",n,div); |
} |
else |
{ |
printf("\n%d is not completely divisible by %d",n,div); |
} |
} Output: Enter The
Number : 345 Enter The
Divisor : 13 345 is not completely
divisible by 13 |
Write a ‘C’ to determine the character entered is vowel or
not
#include<stdio.h> #include <conio.h> |
void main() |
{ |
char c; |
printf("\nEnter The Alphabet : "); |
scanf("%c",&c); |
if(c==’A’
|| c==’E’ || c==’I’ || c==’O’ || c==’U’) //Used
Logical ‘OR’ |
{ |
printf("\n%c is vowel",c); |
} |
else |
{ |
printf("\n%c is not vowel”,c); |
} |
} Output: Enter The
Alphabet : I I is vowel |
To read age and print message
Age |
Message |
Less than 18 |
Children |
18-60 |
Young |
Above 60 |
Old |
Write a ‘C’ to read from user input and print
message.
#include<stdio.h> #include <conio.h> |
void main() |
{ |
int age; |
printf("\nEnter The age : "); |
scanf("%d",&age); |
if(age<18) |
{ |
printf("\nYou are children"); |
} |
else if(age>=18
&& age<60) |
{ |
printf("\nYou are Young”); |
} |
else
if(age>=60 && age<=110) |
{ |
printf("\nYou are Old"); |
} |
else |
{ |
printf("\nInvalid Age"); |
} |
} Output: Enter
The age : 45 You
are Younger |
To
read marks and print message
Marks |
Message |
Less than 40 |
Failed |
40-60 |
Pass |
60-80 |
First Class |
80-100 |
Distinction |
Any Other |
Invalid Marks Input |
Write a ‘C’ to
print grade by user input marks.
#include<stdio.h> #include <conio.h> |
void main() |
{ |
int m; |
printf("\nEnter The Marks : "); |
scanf("%d",&m); |
if(m<40) |
{ |
printf("\nFailed"); |
} |
else if(m>=40
&& m<60) //Used Logical
‘AND’ |
{ |
printf("\nPass”); |
} |
else
if(m>=60 && m<=80) |
{ |
printf("\nFirst Class"); |
} |
else
if(m>=80 && m<=100) |
{ |
printf("\nDistinction"); |
} |
else |
{ |
printf("\nInvalid Marks Input"); |
} |
} Output: Enter The
Marks : 75 First
Class |
Write a ‘C’ to read integers and
print largest among three integers. #include<stdio.h> #include <conio.h> |
void main() |
{ |
int x,y,z; |
printf("\nEnter Three
Integers : "); |
scanf("%d%d%d",&x,&y,&z); |
if(x>y
&& x>z) |
{ |
printf("\n%d is greatest number",x); |
} |
else if(y>z) |
{ |
printf("\n%d is greatest number”,y); |
} |
else |
{ |
printf("\n%d is greatest number",z); |
} |
} Output: Enter Three
Integers : 45 15 65 65 is greatest number. |
Write a ‘C’ to
read character from user and print if it is vowel or not.
#include<stdio.h> #include <conio.h> |
||||||||||||||||||
void main() |
||||||||||||||||||
{ |
||||||||||||||||||
char c; |
||||||||||||||||||
printf("\nEnter The Character : "); |
||||||||||||||||||
scanf("%c",&c); |
||||||||||||||||||
switch(c) |
||||||||||||||||||
{ |
||||||||||||||||||
case ‘a’: |
||||||||||||||||||
case ‘A’:printf(“\n%c is a vowel”,c);break; |
||||||||||||||||||
case ‘e’: |
||||||||||||||||||
case ‘E’:printf(“\n%c is a vowel”,c);break; |
||||||||||||||||||
case ‘i’: |
||||||||||||||||||
case ‘I’:printf(“\n%c is a vowel”,c);break; |
||||||||||||||||||
case ‘o’: |
||||||||||||||||||
case ‘O’:printf(“\n%c is a vowel”,c);break; |
||||||||||||||||||
case ‘u’: |
||||||||||||||||||
case ‘U’:printf(“\n%c is a vowel”,c);break; |
||||||||||||||||||
default :printf(“\n%c is
not a vowel”,c); |
||||||||||||||||||
} |
||||||||||||||||||
} Output: Enter The
Character : Z Z is
not a vowel. Write a ‘C’ to read integer
from user and perform operation according to number.
Write a ‘C’ to print Hello world ten times using
for loop.
|
Write a ‘C’
to print number 1 to 10 using for loop #include<stdio.h> |
void main() |
{ |
int i; |
for(i=1;i<=10;i++) |
{ |
printf("\n %d",i); |
} |
} Output: 1 2 3 4 5 6 7 8 9 10 |
Write a ‘C’ to print number 10 to 1
using for loop #include<stdio.h> |
void main() |
{ |
int i; |
for(i=10;i>=1;i--) |
{ |
printf("\n %d",i); |
} |
} Output: 10 9 8 7 6 5 4 3 2 1 |
Write a c program to print
Multiplication table of given number
#include<stdio.h> |
void main() |
{ |
int i,n,m; |
printf(“Enter The Number : “); |
scanf(“%d“,&n); |
for(i=1;i<=10;i++) |
{ |
m=i*n; |
printf("\n %d",m); |
} |
} Output: Enter
The Number : 25 25 50 75 100 125 150 200 225 250 |
Write a c program to print sum of first ten numbers using
for loop
#include<stdio.h> |
void main() |
{ |
int i,sum=0; //sum contains garbage value |
for(i=1;i<=10;i++) |
{ |
sum=i+sum; |
} |
printf("\n Sum of first
Ten Digit numbers =%d",sum); |
} Output: Sum of first ten digit number = 55 |
Write
a C program to read integer from user then calculate and print its factorial
using for loop.
#include<stdio.h> |
void main() |
{ |
int i,n,fact=1; //’fact’ contains garbage value. to perform
multiplication it is assigned to 1 |
printf(“\nEnter the
number : ”); |
scanf(“%d”,&n); |
for(i=1;i<=n;i++) |
{ |
fact=fact*i; |
} |
printf("\n%d! =%d",n,fact); |
} Output: Enter the
number : 6 6! = 720 |
Write a c program to read integer
from user then calculate and print its power using for loop.
#include<stdio.h> |
void main() |
{ |
int i,x,y,pow=1; |
printf("\n Enter the Base : "); |
scanf("%d",&x); |
printf("\n Enter the Index : "); |
scanf("%d",&y); |
for(i=1;i<=y;i++) |
{ |
pow=pow*x; |
} |
printf("\n %d^%d = %d",x,y,pow); |
} Output: Enter the Base : 2 Enter the Index : 5 2^5 = 32 |
Write a C program to read integer from user and calculate
if it is prime number or Not.
#include<stdio.h> |
void main() |
{ |
int n,i,c=0; |
printf("\n Enter the Number : "); |
scanf("%d",&n); |
for(i=2;i<n;i++) |
{ |
if(n%i==0) |
{ |
c++; |
} |
} |
if(c==0) |
{ |
printf("\n %d is
Prime Number",n); |
} |
else |
{ |
printf("\n %d is Not
Prime Number",n); |
} |
} Output: Enter the Number : 4 4os not Prime Number |
Write
a C program To print Fibonacci series. #include<stdio.h> |
void main() |
{ |
int i,x=0,y=1,s; |
printf("\nFibonacci Series : "); |
printf("\n%d\t%d",x,y); |
for(i=1;i<20;i++) |
{ |
s=x+y; |
printf("\t%d",s); |
x=y; |
y=s; |
} |
} Output: Fibonacci Series
: 0 1
1 2 3 610 978
1597 2584 4181 |
Write A C program to
read from number from user and then calculate sum of digits in it using while
loop. #include<stdio.h> |
void main() |
{ |
int n,r,sum=0; |
printf("\nEnter the
Numbers : "); |
scanf("%d",&n); |
while(n!=0) |
{ |
r=n%10; |
sum=sum+r; |
n=n/10; |
} |
printf("\nSum of Digits of
Number = %d",sum); |
} Output: Enter the
Numbers : 444 Sum of Digit of Number = 12 |
Write a C program to read number from user and then calculate
occurrences of digit using while loop.
#include<stdio.h> |
void main() |
{ |
int n,r,s,c=0; |
printf("\nEnter the
Numbers : "); |
scanf("%d",&n); |
printf("\nEnter the Digit
to Count : "); |
scanf("%d",&s); |
while(n!=0) |
{ |
r=n%10; |
if(r==s) |
{ |
c++; |
} |
n=n/10; |
} |
printf("\n%d Occurs %d
times",s,c); |
} Output: Enter the
Numbers : 112311 Enter the
Digit to Count : 1 1 Occurs 4 time |
Write a C program to read
number from user and then calculate reverse of number using while loop. #include<stdio.h> |
void main() |
{ |
int n,r,rev=0; |
printf("\nEnter the Number
: "); |
scanf("%d",&n); |
while(n!=0) |
{ |
r=n%10; |
rev=rev*10+r; |
n=n/10; |
} |
printf("\nReverse Number =
%d",rev); |
} Output: Enter the
Number : 1234 Reverse Number
= 4321 |
Write a C program to read number from user and then print its
multiplication table using do while loop.
#include<stdio.h> |
void main() |
{ |
int n,i=1,m; |
printf("\nEnter the Number
: "); |
scanf("%d",&n); |
printf("\nMultiplication Table
of %d : ",n); |
do |
{ |
m=n*i; |
printf(“\n%d”,m); |
i++; |
}while(i<=10); |
} Output: Enter the
Number : 12 Multiplication Table
of 12 : 12 24 36 48 60 72 84 96 108 120 |
Other is coming Soon