title: Find Index Given Fibonacci Number Constant Time
signature: class Solution {
  
      public Integer findIndexGivenFibonacciNumberConstantTime(Integer n) {
source_py: def find_index_given_fibonacci_number_constant_time(n):
      if (n <= 1):
          return n
      a = 0
      b = 1
      c = 1
      res = 1
      while (c < n):
          c = (a + b)
          res = (res + 1)
          a = b
          b = c
      return res
source_cpp: int find_index_given_fibonacci_number_constant_time(int n) {
    if ( n <= 1 ) return n;
    int a = 0, b = 1, c = 1;
    int res = 1;
    while ( c < n ) {
      c = a + b;
      res ++;
      a = b;
      b = c;
    }
    return res;
  }
question_info.extension: java
question_info.entry_fn_name: findIndexGivenFibonacciNumberConstantTime
question_info.entry_cls_name: Solution
question_info.test_list: [{"idx": 0, "outputs": 5, "inputs": {"n": 5}}, {"idx": 1, "outputs": 8, "inputs": {"n": 19}}, {"idx": 2, "outputs": 6, "inputs": {"n": 7}}, {"idx": 3, "outputs": 12, "inputs": {"n": 94}}, {"idx": 4, "outputs": 11, "inputs": {"n": 58}}, {"idx": 5, "outputs": 11, "inputs": {"n": 65}}, {"idx": 6, "outputs": 11, "inputs": {"n": 69}}, {"idx": 7, "outputs": 12, "inputs": {"n": 96}}, {"idx": 8, "outputs": 11, "inputs": {"n": 80}}, {"idx": 9, "outputs": 8, "inputs": {"n": 14}}]
question_info.test_code: import static java.util.Map.entry;  
  import java.util.*;
  import java.lang.*;
  // TESTING CODE 
  // ============================================
  class QuestionEvaluator {
      public static String validateSolution(Integer n, Integer expected){
          try{
              Driver driver = new Driver();
              if (driver.run(n,expected)){
                  return "PASSED";
              }
              return "FAILED";
              
          } catch (Exception exception_obj){
              return exception_obj.getClass().getSimpleName();
          }
  
      }
      public static void main(String[] args) {
          String result;
          result = validateSolution(5, 5);
          System.out.println(String.format("%s%s","TEST-0...",result));    
      
          result = validateSolution(19, 8);
          System.out.println(String.format("%s%s","TEST-1...",result));    
      
          result = validateSolution(7, 6);
          System.out.println(String.format("%s%s","TEST-2...",result));    
      
          result = validateSolution(94, 12);
          System.out.println(String.format("%s%s","TEST-3...",result));    
      
          result = validateSolution(58, 11);
          System.out.println(String.format("%s%s","TEST-4...",result));    
      
          result = validateSolution(65, 11);
          System.out.println(String.format("%s%s","TEST-5...",result));    
      
          result = validateSolution(69, 11);
          System.out.println(String.format("%s%s","TEST-6...",result));    
      
          result = validateSolution(96, 12);
          System.out.println(String.format("%s%s","TEST-7...",result));    
      
          result = validateSolution(80, 11);
          System.out.println(String.format("%s%s","TEST-8...",result));    
      
          result = validateSolution(14, 8);
          System.out.println(String.format("%s%s","TEST-9...",result));    
      
      }
  }
  
  class Driver{
      public boolean run(Integer n, Integer expected){
  
          PLACEHOLDER_CLS_NAME sol = new PLACEHOLDER_CLS_NAME();
          return validateSolution(sol.PLACEHOLDER_FN_NAME(n),expected);
      }
      
      public boolean validateSolution(Integer actual, Integer expected){
          return actual.equals(expected);
      }
  }
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: java __FILENAME__