Easy school is a relative term for everyone. For me, for example, it was not very easy to study because of the huge number of assignments. Until I found professional essays in english and then it became a little easier. Writing essays became easier and if I didn't have time I asked for help.

Students will take AP courses because they don't have to study for final exams?? Students in AP courses already don't take final exams in June--and the AP tests are in May anyway. No connection at all between the two things.

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please ,explain me the output through 2nd example. after we bribe first teacher,will not other(2nd and 3rd) two change the grade for free, because both have value 1 for bi andwe had already bribrs first one.

In first example, first teacher need 3 coins bribe to correct the marks and second teacher need 2 coins bribe or free to correct if he bribe 1 other teacher. But the explanation for first example says, if he bribe second teacher with 2 coins, first teacher will correct the marks for free. How it is as first teacher clearly saying he need 3 coins to correct the marks irrespective of bribing any other teachers as the value is '0'. Please explain.

In the first sample doesn't the first teacher change the grade for free at the start?? because b_1 = 0