C++ 程序：在 3 个数字中找出最大和最小

原文：https://www.studytonight.com/cpp-programs/cpp-find-largest-and-smallest-among-3-numbers-program

大家好！

在本教程中，我们将学习如何用 C++ 编程语言在用户输入的 3 个数字中找到最大和最小的数字。

这个程序利用这个例子演示了 cpp 编程语言中 if-else 块的流程。

代号:

#include <iostream>
using namespace std;

int main()
{
    cout << "\n\nWelcome to Studytonight :-)\n\n\n";
    cout << " =====  Program to find the Largest and the Smallest number among 3 numbers ===== \n\n";

    //variable declaration
    int n1, n2, n3, smallest, largest;

    //taking input from the command line (user) all at once
    cout << " Enter the three numbers :  \n\n\n";
    cin >> n1 >> n2 >> n3;

    //assign initial value for comparison (as the undefined variables store a random value)
    smallest = n1;
    largest = n2;

    //logic to find the Smallest and the Largest number - Remember, each variable stores only the latest value inserted into it.
    if (n2 < smallest)
    {
        smallest = n2;
    }

    if (n3 < smallest)
    {
        smallest = n3;
    }
    if (n3 > largest)
    {
        largest = n3;
    }

    if (n2 > largest)
    {
        largest = n2;
    }

    cout << "\n\n The Smallest number among ( " << n1 << ", " << n2 << ", " << n3 << " ) is : " << smallest;
    cout << "\n\n The Largest number among ( " << n1 << ", " << n2 << ", " << n3 << " ) is : " << largest;

    cout << "\n\n\n";

    return 0;
}

输出:

我们希望这篇文章能帮助你更好地理解如何使用 C++ 中的 if-else 块找到最小和最大的数字。如有任何疑问，请随时通过下面的评论区联系我们。

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