Question

In: Computer Science

#include <stdio.h> int main(void) { float funds = 1.0, cost = 0.1; int candies = 0;...

#include <stdio.h>
int main(void) {
float funds = 1.0, cost = 0.1;
int candies = 0;
while(cost <= funds) {
candies += 1;
funds -= cost;
cost += 0.1;
}
printf("%d candies with $%.2f left over.\n",candies,funds);
return 0;
}

When you compile and run this code you get 3 candies with $0.40 left over.

Without knowing how floating point numbers work in a computer, would this result be expected? Explain why or why not. Explain why this result, in fact, occurred.

Solutions

Expert Solution

In the computer system, the floating-point number is represented by using IEEE floating-point representation.

The float data type in Programming Language C is stored in the computer system by using IEEE single-precision floating-point representation as given below:

In single precision representation, 1 bit is used as a sign bit, 8 bits are used for the exponent, and 23 bits are used for the mantissa, and X-127 code is used.

The sign bit is stored in a single bit.

0 -> Positive

1 -> Negative

Yes the given output is expected by the given source code.

The statement by statement explanation of the given source code is given below:

#include <stdio.h>

int main(void)
{
//float type variable declaration and initialization
float funds = 1.0, cost = 0.1;
  
//integer type variable declaration and initialization
int candies = 0;
  
//while loop
while(cost <= funds)
{
//increment the candies by one
candies += 1;
  
//decrement the funds by cost value
funds -= cost;
  
//increment the cost by 0.1
cost += 0.1;
}
  
//display the value of candies and funds on the computer screen
printf("%d candies with $%.2f left over.\n",candies,funds);
return 0;
}

OUTPUT:

3 candies with $0.40 left over.


The while() loop will execute for three times.

The value of all three variable in each of the iteration will be:

Iteration 1:

candies = 1
funds = 0.90
cost = 0.20

Iteration 2:
candies = 2
funds = 0.70
cost = 0.30

Iteration 3:
candies = 3
funds = 0.40
cost = 0.40



Related Solutions

example_thread.c #include <stdio.h> #include <stdlib.h> #include <pthread.h> int shared= 0; void race(void); int main(){     pthread_t...
example_thread.c #include <stdio.h> #include <stdlib.h> #include <pthread.h> int shared= 0; void race(void); int main(){     pthread_t player1, player2, player3;     pthread_create(&player1, NULL, (void *)race, NULL);     pthread_create(&player2, NULL, (void *)race, NULL);     pthread_create(&player3, NULL, (void *)race, NULL);     pthread_join(player1, NULL);     pthread_join(player2, NULL);     pthread_join(player3, NULL);     printf("Total Number = %d\n", shared);     return 0; } void race(void) {     long i,tmp;     for(i=1; i<=200000; i++) {         tmp = shared;         tmp = tmp + 1;         shared =...
#include <stdio.h> #include <math.h> int fun(int); int main(void)    {     int i = 5, x...
#include <stdio.h> #include <math.h> int fun(int); int main(void)    {     int i = 5, x = 3;     i = fun(x);     printf("%d\n", i);     return 0; } int fun(int i) {      int res = 0;      res = pow (i , 3.0);      return ( res); }
#include <stdio.h> #include <stdlib.h> // required for atoi int main(void) {     int i=0,n,num,filenum[100],pos;     int...
#include <stdio.h> #include <stdlib.h> // required for atoi int main(void) {     int i=0,n,num,filenum[100],pos;     int c;    char line[100]; //declaring string for storing data in the line of text    FILE *fp; // declaring a FILE pointer    fp=fopen("numbers.txt","r"); // open a text file for reading    while(fgets(line, sizeof line, fp)!=NULL) {       // looping until end of the file         filenum[i]=atoi(line); //converting data in the line to integer and storing it into array        i++;    }...
#include <stdio.h> #include <ctype.h> int main(void) { int ch; unsigned long int charcount=0, wordcount=0, linecount=0; while((ch=getchar())!=EOF){...
#include <stdio.h> #include <ctype.h> int main(void) { int ch; unsigned long int charcount=0, wordcount=0, linecount=0; while((ch=getchar())!=EOF){ if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\0' || ch=='\r') { wordcount++; } if(ch=='\n' || ch=='\0') { linecount++; } charcount++; } printf("%lu %lu %lu\n", charcount, wordcount, linecount); getchar(); return 0; } When my code reads a blank line, it increment my wordcount by one. How can I fix this problem? Could you help me with this problem?
#include <stdlib.h> #include <stdio.h> #include <string.h> void clrScreen(int lines){     int i = 0;     for( i =...
#include <stdlib.h> #include <stdio.h> #include <string.h> void clrScreen(int lines){     int i = 0;     for( i = 0; i < lines; ++i ){         printf("\n");     }     return; } void printRules(void){     printf("\t|*~*~*~*~*~*~*~*~*~ How to Play ~*~*~*~*~*~*~*~*~*~|\n");     printf("\t|   This is a 2 player game. Player 1 enters the   |\n");     printf("\t|   word player 2 has to guess. Player 2 gets a    |\n");     printf("\t|   number of guesses equal to twice the number    |\n");     printf("\t|   of characters. EX: If the word is 'example'    |\n");     printf("\t|   player 2 gets 14 guesses.                      |\n");     printf("\t|*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~|\n");     clrScreen(10);     return; } //------------------------------------------------------------------------------------------------------------ /*...
#include <stdio.h> int main(void) { int input = -1; double average = 0.0;    /* Use...
#include <stdio.h> int main(void) { int input = -1; double average = 0.0;    /* Use this for your input */ scanf("%d", &input);    /* This is the only output you need */ printf("%.1lf", average); return 0; } Please write a C coding program (make it simple coding)  that find the average of sequence integer. when user enter integers, once at a time. Also, If the user enters 0 (zero), the code will calculates the average and then prints it, and...
#include <stdio.h> #include <stdlib.h> #include <time.h> void sort(int a[], int size); void printArray(int a[], int size);...
#include <stdio.h> #include <stdlib.h> #include <time.h> void sort(int a[], int size); void printArray(int a[], int size); int main(){ int arraySize, limit, count, srand(time(0)); print f("Enter the size of array\n"); scanf("%d", arraySize); int array[arraySize]; printf("Enter the upper limit\n"); scanf("%d", &limit); count = 0; while(count <= arraySize){ array[count] = (rand() % (limit + 1)); count++; } printArray(array, &arraySize); sort(array, arraySize); printArray(array, arraySize); Return 0; } void printArray(int a[], int size){ int i = 0; printf("Array: ["); while(i < size){ if(i != size...
#include <stdio.h> const int DECK_SIZE = 52; int deck[DECK_SIZE]; int main(void) { /* Populate the deck...
#include <stdio.h> const int DECK_SIZE = 52; int deck[DECK_SIZE]; int main(void) { /* Populate the deck */ for(int i = 0; i < DECK_SIZE; i++) { deck[i] = i + 1; }    /* Get the cut position as an integer input */    /* Verify that the input is valid */    /* Cut the deck */    /* Print the resulting deck with one element on each line */ return 0; } Write a program that "cuts" a...
What is the output of the following C program? #include<stdio.h> int fac (int x); void main(...
What is the output of the following C program? #include<stdio.h> int fac (int x); void main( ) {                         for (int i=1; i<=2; i++)                                     printf("%d", fac(i)); } int fac(int x) {                         x = (x>1) ? x + fac(x-1) : 100);                         return x; }
#include <stdio.h> int main() { float sum_salary=0,sum_raise=0,sum_newsalary=0; while(1) { float salary,rate,raise,newsalary; printf("Enter Salary :"); scanf("%f",&salary); if(salary==-1)...
#include <stdio.h> int main() { float sum_salary=0,sum_raise=0,sum_newsalary=0; while(1) { float salary,rate,raise,newsalary; printf("Enter Salary :"); scanf("%f",&salary); if(salary==-1) { if(sum_salary==0) return 0; else { printf("Total Salary :%f Total raise :%f Total New Salary: %f",sum_salary,sum_raise,sum_newsalary); return 0; } } else { if(salary>=0 &&salary<30000) rate=7; else if(salary>=30000 &&salary<=40000) rate=5.5; else if(salary>40000) rate=4; raise=rate*salary/100; newsalary=salary+raise;    sum_salary=salary+sum_salary; sum_raise=raise+sum_raise; sum_newsalary=newsalary+sum_newsalary; printf("Salary :%f rate :%f Raise :%f New Salary: %f\n",salary,rate,raise,newsalary); } } } Hi can you please make sure that the following program will ask the user...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT