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BrokenCalculator.java
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BrokenCalculator.java
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class BrokenCalculator
{
public void run()
{
Kattio sc = new Kattio(System.in);
int n = sc.getInt();
long prev = 1L;
while (n-- > 0)
{
prev = operate(sc.getLong(), sc.getChar(), sc.getLong(), prev);
sc.write(String.valueOf(prev));
sc.write("\n");
}
sc.close();
}
public long operate(long a, char c, long b, long prev)
{
switch (c) {
case '+':
return addition(a, b, prev);
case '-':
return subtraction(a, b, prev);
case '*':
return multiplication(a, b);
case '/':
return division(a);
default:
return 0L;
}
}
public long addition(long a, long b, long prev)
{
return a + b - prev;
}
public long subtraction(long a, long b, long prev)
{
return (a - b) * prev;
}
public long multiplication(long a, long b)
{
return (a * b) * (a * b);
}
public long division(long a)
{
return (a % 2 == 0 ? a : a + 1) / 2;
}
public static void main(String[] args)
{
new BrokenCalculator().run();
}
}