Answer to Question #303431 in C++ for wedyan

Question

Suppose that x, y, and z are int variables, and x = 10, y = 15, and z = 20. Determine whether the following expressions evaluate to true or false:

a. !(x > 10)

b. x <= 5 || y < 15

c. (x != 5) && (y != z)

d. x >= z || (x + y >= z)

e. (x <= y - 2) && (y >= z) || (z - 2 != 20)

Answer 1

#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
	int x = 10;
	int y = 15;
	int z = 20;

	cout <<"!(x > 10) = "<<boolalpha << !(x > 10) << endl;
	cout <<"x<=5||y<15 = " << boolalpha << (x <= 5 || y < 15) << endl;
	cout <<"(x!=5)&&(y!=z) = " << boolalpha << ((x != 5) && (y != z)) << endl;
	cout <<"x>=z||(x+y>=z) = " << boolalpha << (x >= z || (x + y >= z)) << endl;
	cout << "(x<=y-2)&&(y>=z)||(z-2!=20) = " << boolalpha << ((x <= y - 2) && (y >= z) || (z - 2 != 20));
}