check whether the entered character is a lowercase or not in C

 #include <stdio.h>

int main(){

char ch;

printf("Enter the character\n");

scanf("%c",&ch);

if (ch>=97 && ch<=122)

{

    printf("The entered character is a lowercase\n");

}

else

printf("The entered character is not a lowercase\n");

 return 0;

}

convert from km to m and cm

 #include<stdio.h>

int main()

{

int A;

printf("Enter the distance in kilometers:\n");

scanf("%d",&A);

printf("The distance in meters is:%d mtr\n",A*1000);

printf("The distance in centimeters is:%d cms",A*100000);

}

calculate income tax in C

 #include <stdio.h>

int main()

{

    float income, tax = 0;

    printf("Enter your income\n");

    scanf("%f", &income);

    if (income >= 250000 && income <= 500000)

    {

        tax = tax + 0.05 * (income - 250000);

    }

    if (income >= 500000 && income <= 1000000)

    {

        tax = tax + 0.2 * (income - 500000);

    }

    if (income >= 1000000 )

    {

        tax = tax + 0.3 * (income - 500000);

    }

    printf("Total tax you have to pay is:%f", tax);

    return 0;

}

SwitchCase in C

 #include <stdio.h>

int main(){

int rating;

printf("Enter your rating:");

scanf("%d",&rating);

switch(rating)

{

    case 1:printf("Your rating is 1\n");

    break;

    case 2:printf("Your rating is 2\n");

    break;

    case 3:printf("Your rating is 3\n");

    break;

    case 4:printf("Your rating is 4\n");

    break;

    case 5:printf("Your rating is 5\n");

    break;

    default:printf("Your rating is invalid\n");

    break;

}

 return 0;

}

Even Odd number in C

 #include <stdio.h>

int main(){

int a;

printf("Enter a number:");

scanf("%d",&a);

if(a%2==0)

{

    printf("%d is an even number",a);

}

else{

    printf("%d is an odd number",a);

}

 return 0;

}

Expression in c

 #include <stdio.h>

int main(){

int x=2,y=3,z=3,k=1;

int result;

result=3*x/y-z+k;

printf("The value of result is:%d",result);

 return 0;

}

Divisibility Test in C

 #include <stdio.h>

int main()

{

int num;

printf("Enter a number:");

scanf("%d",&num);

printf("Divisibility test returns:%d", num%97);

 return 0;

}

Table of a number in C

 #include <stdio.h>

int main()

{

    int a;

    printf("Which table do you want to see:");

    scanf("%d",&a);

    printf("The table of %d:\n",a);

    for(int i=1;i<=10;i++)

    {

       

        printf("%d",a);

        printf("x""%d:",i);

        printf("%d\n",a*i);

    }

 return 0;

}

calculating simpleInterest in C

 #include <stdio.h>

int main()

{

    int principal=100, rate=4, years=1;

    int SimpleInteret= (principal*rate*years)/100;

    printf("The Simple interest is:%d",SimpleInteret);

 return 0;

}

Coverting temperature from celsius to Fehrenheit in C

 #include <stdio.h>

int main()

{

    float c=34;

    float t;

    t=(c * 9/5) + 32;

    printf("The temperatue in Fahrenheit is:%f",t);

 return 0;

}

Volume of a cyliner in C

 #include <stdio.h>

int main()

{

    int radius=34;

    float pi=3.14;

    int height=9;

    printf("The volume of a cylinder is: %f",pi*radius*radius*height);

 return 0;

}

Area of a circle in C

 #include <stdio.h>

int main()

{

    int radius=34;

    float pi=3.14;

    printf("The area of a circle is: %f",pi*radius*radius);

 return 0;

}

Find out area of a rectangle by taking input from user in C

 #include <stdio.h>

int main(){

int l,b,area;

printf("Enter length:");

scanf("%d",&l);

printf("Enter breadth:");

scanf("%d",&b);

printf("The area of a rectangle is:%d",l*b);

 return 0;

Take input from used and then add 2 sums in C

 #include <stdio.h>

int main()

{

    int a,b,c;

    printf("Enter the value of a:");

    scanf("%d", &a);

    printf("Enter the value of b:");

    scanf("%d", &b);

    printf("The sum of a and b is:%d",a+b);

    return(0);

}

Fibonacci Sequence in C language

 #include <stdio.h>

int main()

{

    int i;

    int a[20];

    a[0] = 1;

    a[1] = 1;

    printf("The following is the Fibonacci Sequence");

    for (i = 0; i < 12; i++)

    {

        a[i + 2] = a[i] + a[i + 1];

        printf("%d\n", a[i]);

    }

    return (0);

}