title: Check If X Can Give Change To Every Person In The Queue
signature: func checkIfXCanGiveChangeToEveryPersonInTheQueue(notes []int, n int) int {
test_code: package main
  
  import (
      "fmt"
      "reflect"
      "math"
      "sort"
  )
  
  // SOLUTION CODE
  // ===================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE
  // ===================================
  func validateSolution(actual int, expected int) bool {
      return reflect.DeepEqual(actual,expected)
  }
  
  func driver(notes []int, n int, expected int) string {
      if validateSolution(PLACEHOLDER_FN_NAME(notes, n),expected) {
              return "PASSED"
      }
      return "FAILED"
  
  }
  
  func main() {
  
      // Use imports to avoid undefined errors
      var _ = reflect.DeepEqual
      _ = math.Abs
      _ = sort.Sort
      result := ""
      result = driver([]int{5, 5, 5, 10, 20}, 
  	4, 1)
      fmt.Printf("TEST-0...%s\n", result)
      
      result = driver([]int{5, 5, 5, 20, 10}, 
  	5, 0)
      fmt.Printf("TEST-1...%s\n", result)
      
      result = driver([]int{5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10}, 
  	27, 1)
      fmt.Printf("TEST-2...%s\n", result)
      
      result = driver([]int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 18}, 
  	12, 0)
      fmt.Printf("TEST-3...%s\n", result)
      
      result = driver([]int{5, 5, 20}, 
  	2, 1)
      fmt.Printf("TEST-4...%s\n", result)
      
      result = driver([]int{10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5}, 
  	17, 0)
      fmt.Printf("TEST-5...%s\n", result)
      
      result = driver([]int{5, 10, 20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5}, 
  	7, 0)
      fmt.Printf("TEST-6...%s\n", result)
      
      result = driver([]int{-82, -10, -78, -84, 68, 62, 10, 20, -86, -98, 92, 70, 40, -12, -20, -36, 8, -70, 6, 8, 44, -24, 8, -18, 76, -54, -14, -94, -68, -62, -24, -36, -74, 92, 92, -80, 48, 56, 94}, 
  	31, 0)
      fmt.Printf("TEST-7...%s\n", result)
      
      result = driver([]int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5}, 
  	25, 0)
      fmt.Printf("TEST-8...%s\n", result)
      
      result = driver([]int{46, 46, 93, 57, 82, 34, 83, 80, 77, 36, 80, 85, 69, 28, 9, 56, 49, 27, 83, 25, 1, 80, 99, 14, 69, 82, 79, 71, 74, 34}, 
  	20, 0)
      fmt.Printf("TEST-9...%s\n", result)
      
          
  }
source_py: def check_if_x_can_give_change_to_every_person_in_the_queue(notes, n):
      fiveCount = 0
      tenCount = 0
      for i in range(n):
          if (notes[i] == 5):
              fiveCount += 1
          elif (notes[i] == 10):
              if (fiveCount > 0):
                  fiveCount -= 1
                  tenCount += 1
              else:
                  return 0
          elif ((fiveCount > 0) and (tenCount > 0)):
              fiveCount -= 1
              tenCount -= 1
          elif (fiveCount >= 3):
              fiveCount -= 3
          else:
              return 0
      return 1
source_cpp: int check_if_x_can_give_change_to_every_person_in_the_queue(vector<int> notes, int n) {
    int fiveCount = 0;
    int tenCount = 0;
    for ( int i = 0;
    i < n;
    i ++ ) {
      if ( notes [ i ] == 5 ) fiveCount ++;
      else if ( notes [ i ] == 10 ) {
        if ( fiveCount > 0 ) {
          fiveCount --;
          tenCount ++;
        }
        else return 0;
      }
      else {
        if ( fiveCount > 0 && tenCount > 0 ) {
          fiveCount --;
          tenCount --;
        }
        else if ( fiveCount >= 3 ) {
          fiveCount -= 3;
        }
        else return 0;
      }
    }
    return 1;
  }