原创 Codeforces Round #140 (Div. 1) B Naughty Stone Piles
題目意思很簡單，就是說，給了你 n 個堆，每個堆有一個重量，現在要把這 n 個堆合併成一個堆，問怎麼合併是的合併的花費最少，合併的花費是這樣定義的：A 堆合併到 B 堆上，那麼本次合併的花費就是 A 堆的重量。但是這樣出題
2020-06-15 00:32:42
原创 SPOJ 839 Optimal Marks
839. Optimal Marks Problem code: OPTM You are given an undirected graph G(V, E). Each vertex has a mark which
2020-06-15 00:32:42
原创 Codeforces Round #150 (Div. 1) A. The Brand New Function
題意 給你 n(1<=n<=10^5) 個數，每個數的範圍是 [0, 10^6] ，定義一個函數 f(L, R) ：把從第 L 個數取到第 R 個數全部取“或”得到的數，考慮所有的 L 和 R，問你能夠得到多少個不同的 f(L,
2020-06-15 00:32:42
原创 priority_queue的用法
priority_queue的用法 priority_queue調用 STL裏面的 make_heap(), pop_heap(), push_heap() 算法實現，也算是堆的另外一種形式。先寫一個用 STL 裏面堆
2020-02-23 20:11:41
原创 HDU 2686 Matrix
Matrix Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 904 Acc
2020-02-23 20:11:41
原创 CodeForces 222C Reducing Fractions
C. Reducing Fractions time limit per test 2 seconds memory limit per test 256 megabytes input standard input o
2020-02-23 20:11:41
1
原创 HDU 1565 方格取數(1)
方格取數(1) Time Limit: 1000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2410 A
2020-02-23 20:11:41
原创 CodeForces 222D Olympiad
D. Olympiad time limit per test 1 second memory limit per test 256 megabytes input standard input output stand
2020-02-23 20:11:41
2
原创 CodeForces 224B Array
B. Array time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standar
2020-02-23 20:11:41
原创 HDU 3061 Battle
Battle Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 628 Acc
2020-02-23 20:11:41
原创 HDU 1533 Going Home
Going Home Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 17
2020-02-23 20:11:41
1
原创 HDU 4279 Food
Food Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 475 Accep
2020-02-23 20:11:41
原创 HDU 1532 Drainage Ditches
Drainage Ditches Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s
2020-02-23 20:11:41
原创 HDU 4280 Island Transport
Island Transport Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission
2020-02-23 20:11:41
原创 HDU 3996 Gold Mine
Gold Mine Time Limit: 6000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1361
2020-02-23 20:11:41