title: Count Index Pairs Equal Elements Array
signature: fun countIndexPairsEqualElementsArray(arr: ArrayList<Int>, n: Int): Int {
source_py: def count_index_pairs_equal_elements_array(arr, n):
      ans = 0
      for i in range(0, n):
          for j in range((i + 1), n):
              if (arr[i] == arr[j]):
                  ans += 1
      return ans
source_cpp: int count_index_pairs_equal_elements_array(vector<int> arr, int n) {
    int ans = 0;
    for ( int i = 0;
    i < n;
    i ++ ) for ( int j = i + 1;
    j < n;
    j ++ ) if ( arr [ i ] == arr [ j ] ) ans ++;
    return ans;
  }
question_info.test_list: [{"idx": 0, "outputs": 1, "inputs": {"arr": [4, 6, 9, 16, 16, 21, 36, 41, 58, 60, 62, 73, 77, 81, 95], "n": 12}}, {"idx": 1, "outputs": 0, "inputs": {"arr": [-86, -72, -26, -34, 18, -62, -66], "n": 3}}, {"idx": 2, "outputs": 0, "inputs": {"arr": [1], "n": 0}}, {"idx": 3, "outputs": 0, "inputs": {"arr": [16], "n": 0}}, {"idx": 4, "outputs": 0, "inputs": {"arr": [-88, -80, -72, -68, -64, -26, 4, 14, 16, 22, 30, 32, 60, 74, 82], "n": 11}}, {"idx": 5, "outputs": 16, "inputs": {"arr": [0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1], "n": 9}}, {"idx": 6, "outputs": 0, "inputs": {"arr": [3, 9, 10, 12, 17, 23, 27, 29, 42, 44, 59, 61, 71, 76, 78, 82, 84, 84, 89, 90, 93, 93, 97, 97], "n": 15}}, {"idx": 7, "outputs": 0, "inputs": {"arr": [68, -40, -46, -20, -64, 90], "n": 5}}, {"idx": 8, "outputs": 61, "inputs": {"arr": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], "n": 15}}, {"idx": 9, "outputs": 3, "inputs": {"arr": [99, 17, 94, 43, 97, 17, 11, 58, 75, 94, 37, 22, 54, 31, 41, 4, 55, 69, 92, 80, 45, 97, 16, 33, 36, 17, 43, 82, 81, 64, 22, 65, 85, 44, 47, 14], "n": 23}}]
question_info.extension: kts
question_info.test_code: package main
  
  import kotlin.text.*
  import kotlin.math.*
  
  
  // SOLUTION CODE
  // ===================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE
  // ===================================
  fun validateSolution(actual:Int, expected:Int):Boolean{
    return actual.equals(expected)
  }
  fun driver(arr: ArrayList<Int>, n: Int, expected:Int):String {
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME(arr, n), expected)) {
                return "PASSED"
        }
        return "FAILED"
      } catch (e: Exception){
        return e::class.simpleName as String
      }
  
  }
  
  fun main() {
      var result: String = ""
      result = driver(arrayListOf(4, 6, 9, 16, 16, 21, 36, 41, 58, 60, 62, 73, 77, 81, 95), 12, 1)
      println("TEST-0...${result}")
      
      result = driver(arrayListOf(-86, -72, -26, -34, 18, -62, -66), 3, 0)
      println("TEST-1...${result}")
      
      result = driver(arrayListOf(1), 0, 0)
      println("TEST-2...${result}")
      
      result = driver(arrayListOf(16), 0, 0)
      println("TEST-3...${result}")
      
      result = driver(arrayListOf(-88, -80, -72, -68, -64, -26, 4, 14, 16, 22, 30, 32, 60, 74, 82), 11, 0)
      println("TEST-4...${result}")
      
      result = driver(arrayListOf(0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1), 9, 16)
      println("TEST-5...${result}")
      
      result = driver(arrayListOf(3, 9, 10, 12, 17, 23, 27, 29, 42, 44, 59, 61, 71, 76, 78, 82, 84, 84, 89, 90, 93, 93, 97, 97), 15, 0)
      println("TEST-6...${result}")
      
      result = driver(arrayListOf(68, -40, -46, -20, -64, 90), 5, 0)
      println("TEST-7...${result}")
      
      result = driver(arrayListOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1), 15, 61)
      println("TEST-8...${result}")
      
      result = driver(arrayListOf(99, 17, 94, 43, 97, 17, 11, 58, 75, 94, 37, 22, 54, 31, 41, 4, 55, 69, 92, 80, 45, 97, 16, 33, 36, 17, 43, 82, 81, 64, 22, 65, 85, 44, 47, 14), 23, 3)
      println("TEST-9...${result}")
      
          
  }
  
  main()
question_info.entry_fn_name: countIndexPairsEqualElementsArray
question_info.entry_cls_name: Solution
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: kotlinc -script __FILENAME__ -no-reflect -nowarn