Answer to Question #300340 in C++ for Kelly

Question

How to execute this using vector

#include <iostream>

int main() {

int size, index, largest, smallest;

std::cout << "How many intergers you want to input? ";

std::cin >> size;

int myarray[size];

std::cout << "Input the elements of the array: ";

for (index = 0; index < size; index++)

std::cin >> myarray[index];

largest = myarray[0];

smallest = myarray[0];

for (index = 0; index < size; index++) {

// largest

if (myarray[index] > largest)

largest = myarray[index];

// smallest

if (myarray[index] < smallest)

smallest = myarray[index];

}

std::cout << "The largest element in the array is: " << largest << ".\n";

std::cout << "The smallest element in the array is: " << smallest << ".\n";

return 0;

}

Answer 1

#include <iostream>
#include <vector>

int main()
{
	int size, index, largest, smallest;
	std::cout << "How many intergers you want to input? ";
	std::cin >> size;
	std::vector<int>myvec;
	int value;
	std::cout << "Input the elements of the array: ";
	for (index = 0; index < size; index++)
	{
		std::cin >> value;
		myvec.push_back(value);
	}
	largest = myvec[0];
	smallest = myvec[0];
	for (index = 0; index < size; index++) 
	{
		// largest
		if (myvec[index] > largest)
			largest = myvec[index];
		// smallest
		if (myvec[index] < smallest)
			smallest = myvec[index];
	}
	std::cout << "The largest element in the array is: " << largest << ".\n";
	std::cout << "The smallest element in the array is: " << smallest << ".\n";
}