min() Function in C++

This C++ program prints minimum of two values using min algorithm. The function takes two objects as the parameters by const reference and the third parameter is optional which is a predicate. The predicate can be used for objects which can not be compared like primitive datatypes and hence can be compared on the basis of some key.

Here is the source code of the C++ program which prints minimum of two values using min algorithm. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

  1. /*
  2.  * C++ Program to print minimum of two values using min() algorithm
  3.  */
  4. #include <iostream>
  5. #include <algorithm>
  7. int main()
  8. {
  9.     int a, b;
  11.     std::cout << "Enter a = ";
  12.     std::cin >> a;
  13.     std::cout << "\nEnter b = ";
  14.     std::cin >> b;
  15.     std::cout << "\nMinimum of a and b is "
  16.               << std::min(a, b) << std::endl; 
  17. }

$ a.out
Enter a = 10
Enter b = 20
Minimum of a and b is 10
$ a.out
Enter a = -40
Enter b = 20
Minimum of a and b is -40

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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