一般的dijkstra算法利用贪心的思想,每次找出最短边,然后优化到其他点的的距离,我们还采用贪心思路,但在寻找最短边进行优化,之前是双重for循环,现在我们用优先队列来实现. 代码解释: //样例程序采用边表储存. #include<cstdio>#include<queue>#include<cstring>#include<cmath>#include<iostream> using namespace std; int head[1000
K - Watermelon Full of Water Time Limit:3000MS Memory Limit:65536KB 64bit IO Format:%lld & %llu Submit Status Practice ZOJ 3632 Appoint description: Description Watermelon is very popular in the hot summer. Students in ZJU-ICPC Team also lo
Invitation Cards Time Limit: 8000MS Memory Limit: 262144K Total Submissions: 16178 Accepted: 5262 Description In the age of television, not many people attend theater performances. Antique Comedians of Malidinesia are aware of this fact. They wan
畅通工程续 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 50537 Accepted Submission(s): 18852 Problem Description 某省自从实行了很多年的畅通工程计划后,终于修建了很多路.不过路多了也不好,每次要从一个城镇到另一个城镇时,都有许多种道路方案可以选择,而某些方案要比另一些方案行走
Magina Problem Description Magina, also known as Anti-Mage, is a very cool hero in DotA (Defense of the Ancient).If you have no idea of him, here is some brief introduction of his legendary antecedents:Twin sons to the great Prophet, Terrorblade and
Cow Relays Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 80 Accepted Submission(s): 13 Description Farmer John has formed a relay team for a race by choosing K (2 ≤ K ≤ 40) of his cows.