title: Number Indexes Equal Elements Given Range
signature: func numberIndexesEqualElementsGivenRange(a []int, n int, l int, r 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(a []int, n int, l int, r int, expected int) string {
      if validateSolution(PLACEHOLDER_FN_NAME(a, n, l, r),expected) {
              return "PASSED"
      }
      return "FAILED"
  
  }
  
  func main() {
  
      // Use imports to avoid undefined errors
      var _ = reflect.DeepEqual
      _ = math.Abs
      _ = sort.Sort
      result := ""
      result = driver([]int{4, 13, 13, 16, 16, 19, 39, 41, 48, 52, 57, 62, 65, 67, 76, 84, 88, 91, 95, 96, 97, 98}, 
  	18, 
  	12, 
  	17, 0)
      fmt.Printf("TEST-0...%s\n", result)
      
      result = driver([]int{62, 76, 86, -8, 84, -6, 72, 84, 6, -50, -18, -94, 54, 90, -74, -64, -26, -14, -32, 62, 10, 4, 70, -28, 8, 18, 4, -62, -76, 84, -78, -4, 84, 98, 58, -68, 42, -6, 34, -38, 52, -84, 78}, 
  	32, 
  	38, 
  	23, 0)
      fmt.Printf("TEST-1...%s\n", result)
      
      result = driver([]int{0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1}, 
  	10, 
  	6, 
  	6, 0)
      fmt.Printf("TEST-2...%s\n", result)
      
      result = driver([]int{11, 75, 98, 29, 62, 53, 48, 91, 86, 66, 48, 94}, 
  	8, 
  	6, 
  	6, 0)
      fmt.Printf("TEST-3...%s\n", result)
      
      result = driver([]int{-94, -84, -70, -70, -40, -40, -36, -24, 10, 48, 62, 74}, 
  	11, 
  	7, 
  	8, 0)
      fmt.Printf("TEST-4...%s\n", result)
      
      result = driver([]int{1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0}, 
  	36, 
  	40, 
  	37, 0)
      fmt.Printf("TEST-5...%s\n", result)
      
      result = driver([]int{1, 2, 6, 7, 10, 11, 13, 19, 19, 25, 29, 30, 32, 34, 35, 45, 45, 46, 47, 48, 48, 53, 58, 61, 64, 65, 67, 75, 76, 81, 81, 84, 84, 85, 86, 94, 94, 96, 99}, 
  	25, 
  	19, 
  	37, 4)
      fmt.Printf("TEST-6...%s\n", result)
      
      result = driver([]int{-56, 42, -34, -12, -86, 82, -96, -66, 30, 16, -40, 72, 84, 94, -48, -30, 26, 50, 42, -44, -50, 22, -38, 8, 34, 94, 2, 16, -32, 18, -58, 12, -26, 28, -62}, 
  	21, 
  	30, 
  	26, 0)
      fmt.Printf("TEST-7...%s\n", result)
      
      result = driver([]int{0, 0, 0, 0, 1, 1, 1}, 
  	4, 
  	5, 
  	5, 0)
      fmt.Printf("TEST-8...%s\n", result)
      
      result = driver([]int{6, 29}, 
  	1, 
  	1, 
  	1, 0)
      fmt.Printf("TEST-9...%s\n", result)
      
          
  }
source_py: def number_indexes_equal_elements_given_range(a, n, l, r):
      count = 0
      for i in range(l, r):
          if (a[i] == a[(i + 1)]):
              count += 1
      return count
source_cpp: int number_indexes_equal_elements_given_range(vector<int> a, int n, int l, int r) {
    int count = 0;
    for ( int i = l;
    i < r;
    i ++ ) if ( a [ i ] == a [ i + 1 ] ) count += 1;
    return count;
  }