please explain why the first print statement uses total only and the second print statement uses 100-total. What does it mean?  also what is meant by total+=flip(); why is total and side not initialized?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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please explain why the first print statement uses total only and the second print statement uses 100-total. What does it mean?  also what is meant by total+=flip();

why is total and side not initialized? 

/*
Program: The program to find the number of heads and tail in 100 flips of
coin.
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
/* function prototype*/
int flip (void);
intmain ()
{
/*set seed to generate random numbers */
srand ((time(NULL)));
int total = 0;
int i;
/*call the flip function to get the side of the coin, if 1, head if 0,
tail. */
for(i=0; i<100; i++)
total + flip();
=
printf("\n\nThe total number of heads was %d\n", total);
printf("The total number of tails was = %d\n",100-total);
return 0;
}
/* function definition to get the side of the coin* /
int flip()
{
int side =rand() %2;
/*if side is 1, head turns up else tail turns up*/
if (side==1)
printf("Heads ");
else
printf("Tails ");
Transcribed Image Text:/* Program: The program to find the number of heads and tail in 100 flips of coin. */ #include <stdio.h> #include <stdlib.h> #include <time.h> /* function prototype*/ int flip (void); intmain () { /*set seed to generate random numbers */ srand ((time(NULL))); int total = 0; int i; /*call the flip function to get the side of the coin, if 1, head if 0, tail. */ for(i=0; i<100; i++) total + flip(); = printf("\n\nThe total number of heads was %d\n", total); printf("The total number of tails was = %d\n",100-total); return 0; } /* function definition to get the side of the coin* / int flip() { int side =rand() %2; /*if side is 1, head turns up else tail turns up*/ if (side==1) printf("Heads "); else printf("Tails ");
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