coursach_2

class Assistant:
    def __init__(self,numofpairs,name):
        self.pairs=[]
        self.numofpairs=numofpairs
        self.name=name
    def getPairs(self):
        return self.pairs
    def getNumOfPairs(self):
        return self.numofpairs
    def addPair(self,num):
        self.pairs.append(num)
        self.numofpairs=self.numofpairs-1
    def setNumOfPairs(self,num):
        self.numofpairs=num
    def getName(self):
        return self.name
    def removePair(self,num):
        self.pairs.pop(self.pairs.index(num))
class Pair:
    def __init__(self,numofstud,hourss,hoursf):
        self.students=[]
        self.numofstudents=numofstud
        self.start=hourss
        self.end=hoursf
    def getStudents(self):
        return self.students
    def getNumOfStudents(self):
        return self.numofstudents
    def addStudent(self,num):
        self.students.append(num)
        self.numofstudents=self.numofstudents-1
    def setNumOfStudents(self,num):
        self.numofstudents=num
    def getHours(self):
        return self.start+'-'+self.end
    def removeStudent(self,num):
        self.students.pop(self.students.index(num))
a1=[]
a1.append(Assistant(2,'Ivanov Sergey'))
a1.append(Assistant(3,'Shamsutdinov Artemiy'))
a2=[]
a2.append(Pair(1,'12.10','13.30'))
a2.append(Pair(2,'13.40','15.00'))
a3=[(1,2),(1,1),(2,2),(2,1)]
for item in a3:
    a1[item[0]-1].addPair(item[1])
    a2[item[1]-1].addStudent(item[0])
for i in range (len(a2)):
    if a2[i].getNumOfStudents()<0:
        rangeofpairs=[]
        for j in a2[i].getStudents():
            rangeofpairs.append(a1[j-1].getNumOfPairs())
        rangeofpairs.sort()
        ind=0
        j = 0
        while a2[i].getNumOfStudents()<0:
            if a1[j].getNumOfPairs()==rangeofpairs[ind]:
                    a1[j].removePair(i+1)
                    a1[j].setNumOfPairs(a1[j].getNumOfPairs()+1)
                    a2[i].setNumOfStudents(a2[i].getNumOfStudents()+1)
                    a2[i].removeStudent(j+1)
                    ind+=1
            else:
                    j += 1
for i in a2:
    print(i.getStudents())