title: Count Subarrays Total Distinct Elements Original Array
signature: function countSubarraysTotalDistinctElementsOriginalArray(arr: Array<number>, n: number): number {
test_code: 
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function convertToString(value: any): string{
      return JSON.stringify(value, function (key, val) {
          if (val instanceof Set) {
              return Array.from(val);
          } return val;});
  }
  
  function validateSolution(actual: number, expected: number): boolean {
      return convertToString(actual) === convertToString(expected);
  }
  
  function driver(arr: Array<number>, n: number, expected:number): string {
      try{
          if (validateSolution(PLACEHOLDER_FN_NAME(arr, n),expected)){
              return "PASSED";
          }
          return "FAILED";
      } catch (error) {
        return error.name;
      }
      
  }
      
  function main(){
    let result = '';
    result = driver([13, 39, 49, 52, 53, 69, 72, 79, 83, 96], 5, 1);
    console.log(`TEST-0...${result}`);
  
    result = driver([-98, -98, 22, -10, -28, 0, 56, 72, 36, 88, 96, 22, 90, 74, -60, -64, 0, 2, -42, 0, 94, -82, -74], 20, 4);
    console.log(`TEST-1...${result}`);
  
    result = driver([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 26, 160);
    console.log(`TEST-2...${result}`);
  
    result = driver([35, 23, 41, 58, 66, 92, 3, 33, 78, 70, 80, 86, 21, 21, 74, 19], 12, 1);
    console.log(`TEST-3...${result}`);
  
    result = driver([-98, -80, -52, -10, 4, 76], 3, 1);
    console.log(`TEST-4...${result}`);
  
    result = driver([1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1], 36, 609);
    console.log(`TEST-5...${result}`);
  
    result = driver([2, 7, 10, 17, 26, 36, 37, 85, 87, 88], 8, 1);
    console.log(`TEST-6...${result}`);
  
    result = driver([64, -2, -94, -84, -48, 86], 5, 1);
    console.log(`TEST-7...${result}`);
  
    result = driver([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 20, 91);
    console.log(`TEST-8...${result}`);
  
    result = driver([91, 49, 94, 81, 64, 5, 13, 70, 82, 9, 80, 82], 9, 1);
    console.log(`TEST-9...${result}`);
  
  };
  
  main();
source_py: def count_subarrays_total_distinct_elements_original_array(arr, n):
      vis = dict()
      for i in range(n):
          vis[arr[i]] = 1
      k = len(vis)
      vid = dict()
      ans = 0
      right = 0
      window = 0
      for left in range(n):
          while ((right < n) and (window < k)):
              if (arr[right] in vid.keys()):
                  vid[arr[right]] += 1
              else:
                  vid[arr[right]] = 1
              if (vid[arr[right]] == 1):
                  window += 1
              right += 1
          if (window == k):
              ans += ((n - right) + 1)
          vid[arr[left]] -= 1
          if (vid[arr[left]] == 0):
              window -= 1
      return ans
source_cpp: int count_subarrays_total_distinct_elements_original_array(vector<int> arr, int n) {
    unordered_map < int, int > vis;
    for ( int i = 0;
    i < n;
    ++ i ) vis [ arr [ i ] ] = 1;
    int k = vis . size ( );
    vis . clear ( );
    int ans = 0, right = 0, window = 0;
    for ( int left = 0;
    left < n;
    ++ left ) {
      while ( right < n && window < k ) {
        ++ vis [ arr [ right ] ];
        if ( vis [ arr [ right ] ] == 1 ) ++ window;
        ++ right;
      }
      if ( window == k ) ans += ( n - right + 1 );
      -- vis [ arr [ left ] ];
      if ( vis [ arr [ left ] ] == 0 ) -- window;
    }
    return ans;
  }