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34 lines (32 loc) · 834 Bytes
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lemonadeChange.java
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34 lines (32 loc) · 834 Bytes
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class Solution{
public boolean lemonadeChange(int[] bills)
{
int[] wallet = {0,0};
for(int i= 0; i < bills.length; i++ )
{
if(bills[i] == 5)
wallet[0]++;
if(bills[i] == 10)
{
wallet[1]++;
if(wallet[0] > 0)
{
wallet[0]--;
}else {return false;}
}
if(bills[i] == 20)
{
if(wallet[1] > 0 && wallet[0] > 0)
{wallet[1]--;
wallet[0]--;}
else if(wallet[0] > 2)
{
wallet[0]--;
wallet[0]--;
wallet[0]--;
}
else return false;
}
}return true;
}
}