Problem UVA12558-Efyptian Fractions(HARD version) Accept:187 Submit:3183 Time Limit: 3000 mSec Problem Description Given a fraction a/b, write it as a sum of different Egyptian fraction. For example, 2/3 = 1/2 + 1/6. Thereisonerestrictionthough: th…
UVA12558 Egyptian Fractions (HARD version) 题解 迭代加深搜索,适用于无上界的搜索.每次在一个限定范围中搜索,如果无解再进一步扩大查找范围. 本题中没有分数个数和分母的上限,只用爆搜绝对TLE.故只能用迭代加深搜索. #include<cstdio> #include<cstring> #include<set> using namespace std; typedef long long ll; int num,T,t,k;…
Channel Allocation Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 14601 Accepted: 7427 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receiver has a s…
POJ 1129 Channel Allocation Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 14191 Accepted: 7229 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receive…
Description An addition chain for n is an integer sequence with the following four properties: a0 = 1 am = n a0<a1<a2<...<am-1<am For each k ( ) there exist two (not neccessarily different) integers i and j ( ) with ak =ai +aj You are give…
DNA sequence Time Limit : 15000/5000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other) Total Submission(s) : 15 Accepted Submission(s) : 7 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description The twenty-first century…
