D. Divide by three, multiply by two (排序 / dfs) 题目链接:http://codeforces.com/contest/977/problem/D 题意:给你一串数字,要你重新排序,使得后一个数是前一个数的两倍或1/3。 算法:排序 / dfs 思路一:排序。将每个数视为2和3以及?(“?”表示其他因子)的乘积。那么从左到右,因子3的个数...
a2 now let ai=a1 and aj=a2 x the divisor a1 ==>let say a1=a1/x and aj=aj*x; ==>now a1/x=a2*x now multiply these two we get (a1/x)*(aj*x)=a1*a2; we can generalise after all the operation when we multiply all the elements we get a1*a2*a3*a4... so we can general...
after some operation we have to make all the element equal in that array now let consider an array of two elements a1,a2 now let ai=a1 and aj=a2 x the divisor a1 ==>let say a1=a1/x and a2=a2*x; ==>now a1/x=a2*x now multiply these two we get (a1/x)*(a2*x)=a1*a2...
Codeforces--977D--Divide by three, multiply by two 题目描述: Polycarp likes to play with numbers. He takes some integer number x, writes it down on the board, and then performs with it n−1 operations of the two kinds: divide the number x by 3 (x mus......
有nn个无序的数,对这些数进行排列,要求ai=3×ai+1ai=3×ai+1或2×ai=ai+12×ai=ai+1,保证这些数有解,输出排序后的数 AC代码# /*** > File Name: DD.cpp > Author: WZY > QQ: 2697097900 > Created Time: 2018年12月09日 星期日 16时53分40秒 ***/ #include<bits/stdc++...
multiply the numberxx by22. After each operation, Polycarp writes down the result on the board and replacesxx by the result. So there will benn numbers on the board after all. You are given a sequence of lengthnn — the numbers that Polycarp wrote down. This sequence is given in arbitra...
He takes some integer number xx, writes it down on the board, and then performs with it n−1n−1operations of the two kinds: divide the number xx by 33 (xx must be divisible by 33); multiply the number xx by 22. After each operation, Polycarp writes down the result on the ...
Divide by three, multiply by two CodeForces - 977D (思维排序),Polycarplikestoplaywithnumbers.Hetakessomeintegernumber xx,writesitdownontheboard,andthenperformswithit n−1n−1 operationsofthe
divide the numberxxxby333(xxxmust be divisible by333); multiply the numberxxxby222. After each operation, Polycarp writes down the result on the board and replacesxxxby the result. So there will bennnnumbers on the board after all.
Codeforces 977D. Divide by three, multiply by two Divide by three, multiply by two Polycarp likes to play with numbers. He takes some integer number x, writes it down on the board, and then performs with it n−1 operations of the two kinds:...