What is a correct way to subtract 5 from fred's weight using the pointer variable 'ptr'?

Explain the values of int data type.

struct gameType { string title; int numPlayers; bool online; }; gameType Awesome[50]; Write the C++ statement that sets the first [0] title of Awesome to Best.

14

C++ complete magic Square #include <iostream> using namespace std; /*int f( int x, int y, int* p, int* q ){if ( y == 0 ){p = 0, q = 0;return 404; // status: Error 404}*p = x * y; // product*q = x / y; // quotient return 200; // status: OK 200} int main(){int p, q;int status = f(10, 2, &p, &q);if ( status == 404 ){cout << "[ERR] / by zero!" << endl;return 0;}cout << p << endl;cout << q << endl; return 0;}*/ /*struct F_Return{int p;int q;int status;}; F_Return f( int x, int y ){F_Return r;if ( y == 0 ){r.p = 0, r.q = 0;r.status = 404;return r;}r.p = x * y;r.q = x / y;r.status = 200;return r;} int main(){F_Return r = f(10, 0);if ( r.status == 404 ){cout << "[ERR] / by zero" << endl;return 0;}cout << r.p << endl;cout << r.q << endl;return 0;}*/ int sumByRow(int *m, int nrow, int ncol, int row){ int total = 0;for ( int j = 0; j < ncol; j++ ){total += m[row * ncol + j]; //m[row][j];}return total; } /*...

C++ Coding Help (Operators: new delete) Assign pointer myGas with a new Gas object. Call myGas's Read() to read the object's fields. Then, call myGas's Print() to output the values of the fields. Finally, delete myGas. Ex: If the input is 14 45, then the output is: Gas's volume: 14 Gas's temperature: 45 Gas with volume 14 and temperature 45 is deallocated. #include <iostream>using namespace std; class Gas { public: Gas(); void Read(); void Print(); ~Gas(); private: int volume; int temperature;};Gas::Gas() { volume = 0; temperature = 0;}void Gas::Read() { cin >> volume; cin >> temperature;} void Gas::Print() { cout << "Gas's volume: " << volume << endl; cout << "Gas's temperature: " << temperature << endl;} Gas::~Gas() { // Covered in section on Destructors. cout << "Gas with volume " << volume << " and temperature " << temperature << " is deallocated."...

#ifndef INT_SET_H#define INT_SET_H #include <iostream> class IntSet{public: static const int DEFAULT_CAPACITY = 1; IntSet(int initial_capacity = DEFAULT_CAPACITY); IntSet(const IntSet& src); ~IntSet(); IntSet& operator=(const IntSet& rhs); int size() const; bool isEmpty() const; bool contains(int anInt) const; bool isSubsetOf(const IntSet& otherIntSet) const; void DumpData(std::ostream& out) const; IntSet unionWith(const IntSet& otherIntSet) const; IntSet intersect(const IntSet& otherIntSet) const; IntSet subtract(const IntSet& otherIntSet) const; void reset(); bool add(int anInt); bool remove(int anInt); private: int* data; int capacity; int used; void resize(int new_capacity);}; bool operator==(const IntSet& is1, const IntSet& is2); #endif

C++ Double Pointer: Can you draw picture of what this means : Food **table? struct Food { int expiration_date; string brand; } Food **table; What is this double pointer saying? I know its a 2D matrix but I don't understand what I'm dealing with here. Does the statement mean that we have an array of pointers of type Food and what is the other * mean? I'm confused.

struct gameType { string title; int numPlayers; bool online; }; gameType Awesome[50]; Write the C++ statements that print out all gameType fields from Awesome whose numPlayers is > 1.

typedef _people { int age; char name[ 32 ] ; } People_T ; People_T data [ 3 ]; Using string lib function, Assign 30 and Cathy to the first cell, Assign 40 and John to the second cell and Assign 50 and Tom to the third cell People_T *ptr ; Declare a pointer pointing to the structure data and print the age and name using the pointer. your output can be : 30 Cathy 40 John 50 Tom

Activity 1 This program firstly initializes an object of struct Cirele with values and then updates those using pointers. The program uses structure notation once and pointer notation another afterwards. #include #include #define MIN 1 #define MAX 30 struct Circle { float xCoord; float yCoord; float radius; }; /* prototypes */ float getRandomNumber (int min, int max); void printByValue(struct Circle cirobj); void setValue(float *target, float newValue); void printByReference(struct Circle *cirObj); int main(void) { /* Declare a struct circle and name it circleobject */ struct Circle circleObject; /* Fill circleObject's members with random numbers */ circleobject.xCoord = getRandomNumber(MIN, MAX); circleobject.yCoord = getRandomNumber (MIN, MAX); circleobject.radius = getRandomNumber (MIN, MAX); /* Printing values of the circle by calling function print by value */ printByValue(circleobject); /* update values of circle one by one */ setValue (&circleobject.xCoord, getRandomNumber(MIN,...

C# help

briefly explain this code #include<iostream>#include<string.h> using namespace std; class bank_account{int acno;char nm[100], acctype[100];float bal;public:bank_account(int acc_no, char *name, char *acc_type, float balance){acno=acc_no;strcpy(nm, name);strcpy(acctype, acc_type);bal=balance;}void deposit();void withdraw();void display();};void bank_account::deposit(){int damt1;cout<<"\n Enter Deposit Amount = ";cin>>damt1;bal+=damt1;}void bank_account::withdraw(){int wamt1;cout<<"\n Enter Withdraw Amount = ";cin>>wamt1;if(wamt1>bal)cout<<"\n Cannot Withdraw Amount";bal-=wamt1;}void bank_account::display(){cout<<"\n Name : "<<nm;cout<<"\n Account Type : "<<acctype;cout<<"\n Balance : "<<bal;}int main(){int acc_no;char name[100], acc_type[100];float balance;cout<<"\n Name : ";cin>>name;cout<<"\n Account Type : ";cin>>acc_type;cout<<"\n Balance : ";cin>>balance;bank_account...