Betsy's TourDon PieleA square township has been divided up into N2 square plots (1 <= N <= 7). The Farm is located in the upper left plot and the Market is located in the lower left plot. Betsy takes her tour of the township going from Farm to
Tour in the CastleTime Limit: 5 Seconds Memory Limit: 32768 KBAfter the final BOSS is defeated, the hero found that the whole castle is collapsing (very familiar scene, isn't it). Escape from the castle is easy, just need to cross a few rooms.
每一條路只能走一次,求一條起點到終點再到起點最短的路。那麼給每一條路賦值容量為1,費用是距離,從起點開始用最小費用流增廣2次後的費用就是最小費用。這題就是最小費用最大流。 Farm TourTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 7904 Accepted: 2837DescriptionWhen FJ's friends visit him on the farm, he likes to show them
PlanTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 207 Accepted Submission(s): 54Problem DescriptionOne day, Resty comes to an incredible world to seek Eve -- The origin of life. Lilith,
USACO ORZTime Limit: 5000/1500 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2291 Accepted Submission(s): 822Problem DescriptionLike everyone, cows enjoy variety. Their current fancy is new shapes for pastures.
A Star not a Tree?Time Limit: 1000MS Memory Limit: 65536KTotal Submissions: 2519 Accepted: 1332DescriptionLuke wants to upgrade his home computer network from 10mbs to 100mbs. His existing network uses 10base2 (coaxial) cables that allow you to
charge-stationTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 587 Accepted Submission(s): 291Problem DescriptionThere are n cities in M^3's empire. M^3 owns a palace and a car and the palace
這道題很基礎,幾乎就是一個ST演算法的模板。第一次接觸ST演算法可以用這道題來練習演算法。 Balanced LineupTime Limit: 5000MS Memory Limit: 65536KTotal Submissions: 23289 Accepted: 10827Case Time Limit: 2000MSDescriptionFor the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up
MAX Average ProblemTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3800 Accepted Submission(s): 980Problem DescriptionConsider a simple sequence which only contains positive integers as a1,
第一個模板——精確覆蓋問題題目:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=3038為什麼選擇這題呢,因為它既可以當作數獨模板又能當成DLX模板,不是一舉兩得嗎^ ^#include<cstdio>using namespace std;const int N=16;const int mm=N*N*N*4+N*N*4+N;const int mn=N*N*N+N;int
簡單樹套樹區間單點修改區間K值查詢線段樹套TREAPDynamic RankingsTime Limit: 10 Seconds Memory Limit: 32768 KBThe Company Dynamic Rankings has developed a new kind of computer that is no longer satisfied with the query like to simply find the k-th smallest number of