C++ Programming: From Problem Analysis to Program Design
C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN: 9781337102087
Author: D. S. Malik
Publisher: Cengage Learning
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Chapter 12, Problem 14SA

Explanation of Solution

The program errors and the corrections are explained in the in-lined comments:

#include <iostream> 

using namespace std; 

int main()  

{  

    //speed is a int pointer which is declared and 

    //memory allocated

    int *speed = new int; //Line 1

    //double pointers are declared 

    double *travelTime; //Line 2

    double *distance; //Line 3

    //value of 65 is stored in the memory allocated

    //pointed to by speed using address of operator

    //& which is wrong

    ///&speed = 65; //Line 4

    //correct line is 

    *speed = 65;

    //value is attempted to be stored at a memory location

    //which is pointed to by travelTime but actually

    //no memory has yet been allocated so memory

...

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#include<stdio.h>#include<stdlib.h> int cent50=0;int cent20=0;int cent10=0;int cent05=0; void calculatechange(int* change){if(*change>0){if(*change>=50){*change-=50;cent50++;}else if(*change>=20){*change-=20;cent20++;}else if(*change>=10){*change-=10;cent10++;}else if(*change>=05){*change-=05;cent05++;}calculatechange(change);}}void printchange(){if(cent50)printf("\n50cents:%d coins",cent50);if(cent20)printf("\n20cents:%d coins",cent20);if(cent10)printf("\n10cents:%d coins",cent10);if(cent05)printf("\n05cents:%d coins",cent05);cent50=0;cent20=0;cent10=0;cent05=0;}void takechange(int* change){scanf("%d",change);getchar();}int main(){int change=0;int firstinput=0;while(1){if(!firstinput){printf("\nEnter the amount:");firstinput++;}else{printf("\n\nEnter the amount to continue or Enter -1 to…
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