摘要：
Implement a firewallprototype:bool firewall(string url, list<string> IncludedList, List<string> ExcludedList)Return true if the url is in included listReturn false if the url is in exclude... 阅读全文
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sum of piece
2010-10-20 10:34 by wansishuang, 195 阅读, 收藏,
摘要：
一个数组，N个正整数，分成x段，找一种分段法，minimize the maximum sum of x pieces,0 < sum of piece < sum all, 在这个区间进行二分http://poj.org/problem?id=3273http://poj.org/bbs?problem_id=3273 阅读全文
rectangles overlap
2010-10-03 23:03 by wansishuang, 187 阅读, 收藏,
摘要：
rectangles are given. As a struct having {bottomleft-x, bottomleft-y, topright-x, topright-y} you are given two rectangles R1, R2? determine if they intersect 阅读全文
筛选法求素数
2010-09-26 19:28 by wansishuang, 175 阅读, 收藏,
摘要：
#include #include #include #include #include //#include int main() { int num; printf("Find primes up to: "); scanf("%d", &num); clock_t start, stop; assert((start = clock... 阅读全文
Remove extra brackets
2010-09-25 16:43 by wansishuang, 169 阅读, 收藏,
摘要：
I have a expression containing extra brackets .Write an algo which can remove unwanted brackets like expression is (((a+d)*(a-2))) so we shuld be able to get (a+d)*(a-2)One solution：Think it will be ... 阅读全文
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