title: Write A C Program To Find The Parity Of An Unsigned Integer
signature: func writeACProgramToFindTheParityOfAnUnsignedInteger(n int) int {
test_code: package main
  
  import (
      "fmt"
      "reflect"
      "math"
      "sort"
  )
  
  // SOLUTION CODE
  // ===================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE
  // ===================================
  func validateSolution(actual int, expected int) bool {
      return reflect.DeepEqual(actual,expected)
  }
  
  func driver(n int, expected int) string {
      if validateSolution(PLACEHOLDER_FN_NAME(n),expected) {
              return "PASSED"
      }
      return "FAILED"
  
  }
  
  func main() {
  
      // Use imports to avoid undefined errors
      var _ = reflect.DeepEqual
      _ = math.Abs
      _ = sort.Sort
      result := ""
      result = driver(63, 0)
      fmt.Printf("TEST-0...%s\n", result)
      
      result = driver(64, -1)
      fmt.Printf("TEST-1...%s\n", result)
      
      result = driver(85, 0)
      fmt.Printf("TEST-2...%s\n", result)
      
      result = driver(36, 0)
      fmt.Printf("TEST-3...%s\n", result)
      
      result = driver(20, 0)
      fmt.Printf("TEST-4...%s\n", result)
      
      result = driver(63, 0)
      fmt.Printf("TEST-5...%s\n", result)
      
      result = driver(42, -1)
      fmt.Printf("TEST-6...%s\n", result)
      
      result = driver(19, -1)
      fmt.Printf("TEST-7...%s\n", result)
      
      result = driver(62, -1)
      fmt.Printf("TEST-8...%s\n", result)
      
      result = driver(97, -1)
      fmt.Printf("TEST-9...%s\n", result)
      
          
  }
source_py: def write_a_c_program_to_find_the_parity_of_an_unsigned_integer(n):
      parity = 0
      while n:
          parity = (~ parity)
          n = (n & (n - 1))
      return parity
source_cpp: bool write_a_c_program_to_find_the_parity_of_an_unsigned_integer(unsigned int n) {
    bool parity = 0;
    while ( n ) {
      parity = ! parity;
      n = n & ( n - 1 );
    }
    return parity;
  }