检查数组的所有元素 [英] Check all elements of an array

问题描述

你好，

我想创建某种函数来检查数组的所有值，如果它们全部相同，则将bool设置为false，如果其中一个值不同，则其余值将bool设置为true.

示例:
假设array1包含{0，0，0}，而array2包含{0，1，0}

Hello,

I would like to create some sort of function that checks all the values of an array and, if they are all the same, sets a bool to false, and if one of the values is different then the rest, sets the bool to true.

Example:
Say the array1 contains {0, 0, 0} and array2 contains {0, 1, 0}

int Array[3];
bool TheBool(false);

for(int i = 0; i < SizeOfArray; i++)
{
  if(all elements of the array are the same)
  {
    TheBool = false;
  }
  else
  {
    TheBool = true;
  } 
}

对于array1，TheBool应为false，对于array2，则应为true.

预先感谢任何可以帮助我解决这个问题的人:)

With array1, TheBool should be false, and with array2, it should be true.

Thanks in advance to anyone who can help me out with this :)

推荐答案

一个幼稚的实现可能是这样的；

A naive implementation could be something like this;

#include <iostream>

using namespace std;

bool checkArray(int a[], size_t length)
{
	if (length < 2)
		return true;
	else
	{
		int value = a[0];
		for(int i = 1; i < length; ++i)
		{
			if (a[i] != value)
				return false;
		}

		return true;
	}
}

int main()
{
	int myArray[3];
	myArray[0] = 1;
	myArray[1] = 2;
	myArray[2] = 1;

	cout << (checkArray(myArray, 3) ? "All are same" : "There are different numbers in there!") << endl;
	return 0;
}

希望这会有所帮助，
弗雷德里克(Fredrik)

Hope this helps,
Fredrik

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