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LemonadeChange.java
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53 lines (46 loc) · 1.04 KB
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package Leetcode;
import java.util.Scanner;
public class LemonadeChange
{
public static void main( String[] args )
{
Scanner s = new Scanner( System.in );
int n = s.nextInt();
int[] bills = new int[ n ];
for( int i = 0; i < n; i++ )
{
bills[i] = s.nextInt();
}
boolean lemonadeChange = lemonadeChange( bills );
System.out.println( lemonadeChange );
}
public static boolean lemonadeChange( int[] bills )
{
int fives =0;
int tens = 0;
for(Integer bill : bills)
{
if(bill==5)
{
fives++;
}
else if(bill==10)
{
tens++;
fives--;
}
else if(tens>0)
{
tens--;
fives--;
}
else
{
fives-=3;
}
if(fives<0)
return false;
}
return true;
}
}