CST 295 C++ Question

Question

This is a CST 295 C++ Question.

 

Evaluate the following expression. (Compute the value) Be aware of implicit type conversion (I).

 

A. 4 + 24 / 3 * 4

 

B. 5 < 10 && 0 + 1

 

C. (age>=65)?"senior":"adult" // Assume that age is 45

 

D. "NDM" < "ndm"

 

E. 20 % 6 == 0

 

F. pow(2, 5) - pow(5, 2)

 

G. (3 < 4) || (4 < 5) && (10 == 9)

 

H. n-- + 2 // Assume n is 0

 

I. static_cast<double>(3) / 6 * 2 J. 3 / 6 * 2

Answer 1

using namespace std;

#include <iostream>

#include <math.h>

#include <string.h>

int main()

{

cout << 4 + 24 / 3 * 4 << endl; // 36

cout << ( 5 < 10 && 0 + 1) << endl; // true

int age=45;

char str[25];

strcpy(str, (age>=65)?"senior":"adult");

cout << str << endl; // adult

cout << strcmp("NDM" ,"ndm") << endl; // true : strcmp returns negative

cout << (20 % 6 == 0 ) << endl; // false

cout << pow(2, 5) - pow(5, 2) << endl; // 7

cout << ( (3 < 4) || (4 < 5) && (10 == 9) ) << endl; // true

int n=0;

cout << ( n-- + 2 ) << endl; // 2 because the POST incrementor returns zero

cout << ( (double) (3) / 6 * 2 ) << endl; // 1.0

cout << 3 / 6 * 2 << endl; // 0 because of integer division 3/6 is zero

}