title: Check Number Is Perfect Square Using Additionsubtraction
signature: function checkNumberIsPerfectSquareUsingAdditionsubtraction(n: number): boolean {
source_py: def check_number_is_perfect_square_using_additionsubtraction(n):
      i = 1
      the_sum = 0
      while (the_sum < n):
          the_sum += i
          if (the_sum == n):
              return True
          i += 2
      return False
source_cpp: bool check_number_is_perfect_square_using_additionsubtraction(int n) {
    for ( int sum = 0, i = 1;
    sum < n;
    i += 2 ) {
      sum += i;
      if ( sum == n ) return true;
    }
    return false;
  }
question_info.test_list: [{"idx": 0, "outputs": true, "inputs": {"n": 1}}, {"idx": 1, "outputs": true, "inputs": {"n": 4}}, {"idx": 2, "outputs": true, "inputs": {"n": 9}}, {"idx": 3, "outputs": true, "inputs": {"n": 25}}, {"idx": 4, "outputs": true, "inputs": {"n": 36}}, {"idx": 5, "outputs": false, "inputs": {"n": 3}}, {"idx": 6, "outputs": true, "inputs": {"n": 121}}, {"idx": 7, "outputs": false, "inputs": {"n": 14}}, {"idx": 8, "outputs": false, "inputs": {"n": 17}}, {"idx": 9, "outputs": false, "inputs": {"n": 80}}]
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: boolean, expected: boolean): boolean {
      return convertToString(actual) === convertToString(expected);
  }
  
  function driver(n: number, expected:boolean): string {
      try{
          if (validateSolution(PLACEHOLDER_FN_NAME(n),expected)){
              return "PASSED";
          }
          return "FAILED";
      } catch (error) {
        return error.name;
      }
      
  }
      
  function main(){
    let result = '';
    result = driver(1, true);
    console.log(`TEST-0...${result}`);
  
    result = driver(4, true);
    console.log(`TEST-1...${result}`);
  
    result = driver(9, true);
    console.log(`TEST-2...${result}`);
  
    result = driver(25, true);
    console.log(`TEST-3...${result}`);
  
    result = driver(36, true);
    console.log(`TEST-4...${result}`);
  
    result = driver(3, false);
    console.log(`TEST-5...${result}`);
  
    result = driver(121, true);
    console.log(`TEST-6...${result}`);
  
    result = driver(14, false);
    console.log(`TEST-7...${result}`);
  
    result = driver(17, false);
    console.log(`TEST-8...${result}`);
  
    result = driver(80, false);
    console.log(`TEST-9...${result}`);
  
  };
  
  main();
question_info.extension: ts
question_info.entry_fn_name: checkNumberIsPerfectSquareUsingAdditionsubtraction
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