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1) Hello Program in C Language.

→This is my first code in this blog, it is a simple program to print hello.

#include<stdio.h>
int main()
{
   printf("Hello this is my first program");
   return 0;
}

Output: Hello this is my first program

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A simple calculator program.

→ A simple calculator using C language. In this, you can add, multiply, divide and subtract any two number. #include<stdio.h> int main() {    float a,b,c;    char d;    printf("Enter:");    scanf("%f  %c %f",&a,&d,&b);    if(d=='+')    {     c=a+b;     printf("%.2f",c);    }    else if(d=='-')    {     c=a-b;     printf("%.2f",c);    }    else if(d=='*')    {     c=a*b;     printf("%.2f",c);    }    else if(d=='/')    {     c=a/b;     printf("%.2f",c);    } } Output: Enter:  9/4              2.25