//one line comment - same as # in Python 

/* multiple  same as """ """ in Python
lines
of 
comments      
*/

//this program will print lines of text
//this program will introduce input statement - scanf

#include<stdio.h> //similat to import in Python, stdio library - standard input/output

int main(){
	//Part I
	printf("Hello world\n"); //\n will print new line
	printf("my name is C\tI learn C today\n"); //\t prints TAB space
	printf("Printing quotes and double quotes \' \"\n"); //have to put \ before the character
	printf("printing backslash \\ \n");
	printf("printing percent character %% \n");

	//Part II
	//this part will read two integers and finds their sum (+) product (*) difference (-)
	int num1, num2; //declaration of variables
	int sum=0; //declaration and initialization
	printf("enter two integers\n");
	scanf("%d%d",&num1,&num2); //%d - int type input
	/*
	scanf("%d",&num1);
	scanf("%d",&num2);

	*/
	sum=num1+num2;
	printf("sum is %d\n",sum); //%d to print integer type
	int product,difference;
	product=num1*num2;
	difference=num1-num2;
	printf("product and difference are %d,%d\n",product,difference);
	//find num1 modulo num2 modulo = %
	int modulo;
	modulo=num1%num2;
	printf("modulo is %d\n",modulo);

	//Part III - floating point numbers and division
	float a; //single precision
	double b; //double precision
	//input %f - float, %lf - double
	//output: %f - float/double
	//find sum and product of two decimal point numbers
	float k1, k2;
	printf("enter two floats\n");
	scanf("%f%f",&k1,&k2);
	printf("sum is %f + %f = %f\n",k1,k2,k1+k2);
	a=k1*k2;
	printf("product is %f\n",a);
	//difference (-) of two decimal point numbers 
	printf("%f - %f = %f\n", k1, k2, k1-k2);
	//sum, product and difference of doubles
	double m1,m2;
	printf("enter two doubles\n");
	scanf("%lf%lf",&m1,&m2);
	b=m1+m2;
	printf("sum=%f, product=%f, difference=%f\n",b, m1*m2, m1-m2);


	//Part 4 - division (/) of integers
	//int/int - truncated integer, same as integer division in Python

	printf("%d\n", 7/2);
	printf("%f\n",(double)(7)/2.0); 

	return 0;
}