C++程序 – 求三个数字中的最大值

在这里，我们将看到如何使用c++程序找到三个数字中最大的那个。下面是一些例子:

Input: a = 1, b = 2, c = 45Output: The Largest Among 3 is 45Input: a = 75, b = 134, c = 9Output: The Largest Among 3 is 134

在c++中有三种方法可以找到这三个数字中最大的那个:

使用if – else语句。使用逻辑运算符。使用三元运算符。

让我们开始详细讨论每一种方法。

1. 使用if – else语句

这里将使用以下算法:

算法:

开始.输入a, b and c.检查条件a>=b如果步骤3为“True”，请执行步骤5，否则请执行步骤9。检查条件a>=c。如果步骤5为“True”请执行步骤7，否则请执行步骤8。输入“The biggest Among 3 is: a”，执行步骤13输入“The biggest Among 3 is: c”，执行步骤13。检查条件b>=c。如果步骤9为“True”，执行步骤11，否则执行步骤12。输入“The biggest Among 3 is: b”，执行步骤13。输入“The biggest Among 3 is: c”，执行步骤13。结束.

流程图:

下面是使用if-else语句查找三个数字中最大的一个的c++程序:

// C++ Program to Find Largest Among// Three Numbers Using if-else// Statement#include<bits/stdc++.h>using namespace std;  // Driver codeint main(){  int a, b, c;  cout << "Enter the three numbers a, b & c" <<            endl;  cin >> a >> b >> c;      if(a >= b)  {    if(a >= c)    {      cout << "The Largest Among Three Numbers is : " <<               a << endl;    }     else    {      cout << "The Largest Among Three Numbers is : " <<                c << endl;    }  }   else  {    if(b >= c)    {      cout << "The Largest Among Three Numbers is : " <<                b << endl;    }     else    {      cout << "The Largest Among Three Numbers is : " <<                c << endl;    }  }  return 0;}

输出:

2. 使用逻辑操作符

下面是使用逻辑运算符查找最大数字的流程图:

下面是使用逻辑运算符查找三个数字中最大的一个的c++程序:

// C++ program to find largest// among three numbers using // logical operator#include<bits/stdc++.h>using namespace std;  // Driver codeint main(){    int a, b, c;    cout << "Enter the three numbers a, b & c" <<              endl;    cin >> a >> b >> c;      if(a >= b && a >= c)    {        cout << "The Largest Among Three Numbers is : " <<                  a << endl;    }    else if(b >= a && b >= c)    {        cout << "The Largest Among Three Numbers is : " <<                  b << endl;    }    else    {        cout << "The Largest Among Three Numbers is : " <<                  c << endl;    }          return 0;}

输出:

3.使用三元运算符

下面是使用三元操作符查找三个数中最大的那个的c++程序:

// C++ program to find largest// among three numbers using // ternary operator#include<bits/stdc++.h>using namespace std;  // Driver codeint main(){    int a, b, c, ans;    cout << "Enter the three numbers a, b & c" <<              endl;    cin >> a >> b >> c;      ans = (a >= b ? (a >= c ? a : c) :           (b >= c ? b : c));    cout << "The Largest Among Three Numbers is : " <<              ans << endl;    return 0;}

输出: