C++ Program to Implement Russian Peasant Multiplication

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This C++ Program demonstrates the implementation of Russian Peasant Multiplication.

Here is source code of the C++ Program to demonstrate the implementation of Russian Peasant Multiplication. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

  1. /* 
  2.  * C++ Program to Implement Russian Peasant Multiplication 
  3.  */
  4. #include <iostream>
  5. using namespace std;
  6. /* 
  7.  * multiply two numbers using Russian Peasant method
  8.  */
  9. unsigned int russianPeasant(unsigned int a, unsigned int b)
  10. {
  11.     int res = 0;
  12.     while (b > 0)
  13.     {
  14.          if (b & 1)
  15.              res = res + a;
  16.          a = a << 1;
  17.          b = b >> 1;
  18.      }
  19.      return res;
  20. }
  21.  
  22. /*  
  23.  * Main
  24.  */
  25. int main()
  26. {
  27.     cout << russianPeasant(15, 5) << endl;
  28.     cout << russianPeasant(13, 6) << endl;
  29.     return 0;
  30. }

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$ g++ russian_peasant.cpp
$ a.out
 
75
78
 
------------------
(program exited with code: 1)
Press return to continue

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn