from tablou import Tablou

class StivaT:
    def __init(self, dim):
        self.tab = Tablou(dim)
        self.varf = -1

    def isEmpty(self):
        return self.varf == len(self.tab)-1

    def isFull(self):
        return self.varf == len(self.tab)-1
    def push(self,val):
        if self.isFull() == False:
            self.varf +=1
            self.tab[self.varf] = val

    def peek(self):
        return self.tab[self.varf]

    def pop(self):
        if self.isEmpty() == False:
            val = self.tab[self.varf]
            self.varf -= 1
            return val

def testare():
    stv = StivaT(4)
    print(stv.isEmpty())
    print(stv.isFull())

    stv.push(5)
    stv.push(3)
    stv.push(9)
    stv.push(7)
    print(stv.isFull())
    print(stv.peek())
    stv.push(11)
    print(stv.peek())

    print(stv.pop())
    print(stv.pop())
    print(stv.pop())
    print(stv.pop())
    print(stv.isEmpty())
    print(stv.pop())

if __name__ == '__main__':
    testare()