title: Find A Rotation With Maximum Hamming Distance
signature: function findARotationWithMaximumHammingDistance(arr: Array<number>, n: number): number {
source_py: def find_a_rotation_with_maximum_hamming_distance(arr, n):
      brr = ([0] * ((2 * n) + 1))
      for i in range(n):
          brr[i] = arr[i]
      for i in range(n):
          brr[(n + i)] = arr[i]
      maxHam = 0
      for i in range(1, n):
          currHam = 0
          k = 0
          for j in range(i, (i + n)):
              if (brr[j] != arr[k]):
                  currHam += 1
                  k = (k + 1)
          if (currHam == n):
              return n
          maxHam = max(maxHam, currHam)
      return maxHam
source_cpp: int find_a_rotation_with_maximum_hamming_distance(vector<int> arr, int n) {
    int brr [ 2 * n + 1 ];
    for ( int i = 0;
    i < n;
    i ++ ) brr [ i ] = arr [ i ];
    for ( int i = 0;
    i < n;
    i ++ ) brr [ n + i ] = arr [ i ];
    int maxHam = 0;
    for ( int i = 1;
    i < n;
    i ++ ) {
      int currHam = 0;
      for ( int j = i, k = 0;
      j < ( i + n );
      j ++, k ++ ) if ( brr [ j ] != arr [ k ] ) currHam ++;
      if ( currHam == n ) return n;
      maxHam = max ( maxHam, currHam );
    }
    return maxHam;
  }
question_info.test_list: [{"idx": 0, "outputs": 12, "inputs": {"arr": [1, 4, 18, 22, 28, 34, 35, 39, 44, 45, 67, 73, 75, 79, 81, 83, 89, 93, 96], "n": 12}}, {"idx": 1, "outputs": 0, "inputs": {"arr": [52, -28], "n": 1}}, {"idx": 2, "outputs": 1, "inputs": {"arr": [0, 0, 0, 0, 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, 1, 1, 1, 1, 1], "n": 21}}, {"idx": 3, "outputs": 0, "inputs": {"arr": [24], "n": 0}}, {"idx": 4, "outputs": 2, "inputs": {"arr": [-68, 14, 36, 62], "n": 2}}, {"idx": 5, "outputs": 6, "inputs": {"arr": [1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0], "n": 12}}, {"idx": 6, "outputs": 15, "inputs": {"arr": [7, 10, 19, 22, 24, 28, 29, 39, 46, 55, 62, 66, 68, 73, 74, 76, 83, 84, 85, 99], "n": 15}}, {"idx": 7, "outputs": 14, "inputs": {"arr": [-38, 56, 86, 12, 24, -90, -20, -46, 38, 92, -44, -74, 54, 50, 46, 50, -94, 64, 32, -84, 70], "n": 14}}, {"idx": 8, "outputs": 2, "inputs": {"arr": [0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1], "n": 8}}, {"idx": 9, "outputs": 2, "inputs": {"arr": [61, 89, 8], "n": 2}}]
question_info.entry_cls_name: Solution
question_info.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([1, 4, 18, 22, 28, 34, 35, 39, 44, 45, 67, 73, 75, 79, 81, 83, 89, 93, 96], 12, 12);
    console.log(`TEST-0...${result}`);
  
    result = driver([52, -28], 1, 0);
    console.log(`TEST-1...${result}`);
  
    result = driver([0, 0, 0, 0, 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, 1, 1, 1, 1, 1], 21, 1);
    console.log(`TEST-2...${result}`);
  
    result = driver([24], 0, 0);
    console.log(`TEST-3...${result}`);
  
    result = driver([-68, 14, 36, 62], 2, 2);
    console.log(`TEST-4...${result}`);
  
    result = driver([1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0], 12, 6);
    console.log(`TEST-5...${result}`);
  
    result = driver([7, 10, 19, 22, 24, 28, 29, 39, 46, 55, 62, 66, 68, 73, 74, 76, 83, 84, 85, 99], 15, 15);
    console.log(`TEST-6...${result}`);
  
    result = driver([-38, 56, 86, 12, 24, -90, -20, -46, 38, 92, -44, -74, 54, 50, 46, 50, -94, 64, 32, -84, 70], 14, 14);
    console.log(`TEST-7...${result}`);
  
    result = driver([0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1], 8, 2);
    console.log(`TEST-8...${result}`);
  
    result = driver([61, 89, 8], 2, 2);
    console.log(`TEST-9...${result}`);
  
  };
  
  main();
question_info.extension: ts
question_info.entry_fn_name: findARotationWithMaximumHammingDistance
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: tsc --target es2020 --lib es5,dom,es2015,es2020 __FILENAME__
question_info.commands: node __FILENAME__.js