class_3.c

//////
////// Created by 17814 on 2021/1/29.
//////
////
////
////
////#include <stdio.h>
////    int main()
////    {
////        char ch = 'C';
////        char str[6] = "hello";
////        float flt = 10.234;
////        int no = 150;
////        double dbl = 20.123456;
////
////        printf("Character is %c \n", ch);
////        printf("String is %s \n" , str);
////        printf("Float value is %f \n", flt);
////        printf("Integer value is %d\n" , ch);
////        printf("Double value is %lf \n", dbl);
////        printf("Octal value is %o \n", no);
////        printf("Hexadecimal value is %x \n", no);
////        return 0;
////    }
//
///*
// * Determines the value of a collection of coins.
// */
//#include <stdio.h>
//
//int
//main(void)
//{
//    char first, middle, last;	/* input - 3 initials     	*/
//    int pennies, nickels;  /* input - count of each coin type	*/
//    int dimes, quarters;   /* input - count of each coin type	*/
//    int change; 	/* output - change amount    	*/
//    int dollars;        	/* output - dollar amount   	*/
//    int total_cents;  	/* total cents             	*/
//
//    /* Get and display the customer's initials. */
//    printf("Type in 3 initials and press return> ");
//    scanf("%c%c%c", &first, &middle, &last);
//    printf("Hello %c%c%c, let's see what your coins are worth.\n",
//           first, middle, last);
//
//    /* Get the count of each kind of coin. */
//    printf("Number of quarters> ");
//    scanf("%d", &quarters);
//    printf("Number of dimes   > ");
//    scanf("%d", &dimes);
//    printf("Number of nickels > ");
//    scanf("%d", &nickels);
//    printf("Number of pennies > ");
//    scanf("%d", &pennies);
//
//    /* Compute the total value in cents. */
//    total_cents = 25 * quarters + 10 * dimes +
//                  5 * nickels + pennies;
//
//    /* Find the value in dollars and change. */
//    dollars = total_cents / 100;
//    change = total_cents % 100;
//
//    /* Display the value in dollars and change. */
//    printf("\nYour coins are worth %d dollars and %d cents.\n",
//           dollars, change);
//
//    return (0);
//}
//
///* Type in 3 initials and press Return> BMC
//Hello BMC, let's see what your coins are worth.
//Number of quarters> 8
//Number of dimes   > 20
//Number of nickels > 30
//Number of pennies > 77
//
//Your coins are worth 6 dollars and 27 cents. */
#include <stdio.h>
int main()
{
    int a, b;
    a = 4;
    b = sqrt(a);
    printf("sqrt = %d",b);
}