Nowadays, a kind of chess game called “Super Jumping! Jumping! Jumping!” is very popular in HDU. Maybe you are a good boy, and know little about ...
題目鏈接:http: acm.hdu.edu.cn showproblem.php pid Super Jumping Jumping Jumping Time Limit: MS Java Others Memory Limit: K Java Others Total Submission s : Accepted Submission s : Problem Description Nowa ...
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Nowadays, a kind of chess game called “Super Jumping! Jumping! Jumping!” is very popular in HDU. Maybe you are a good boy, and know little about ...
的記錄 CF1588F Jumping Through the Array 給定一個長為 \(n ...
Super Jumping! Jumping! Jumping! 首先對於動態規划問題要找出其子問題,如果找的子問題是前n個序列的最長上升子序列,但這樣的子問題不好,因為它不具備無后效性,因為它的第n+1的數會影響前n個序列的長度,換句話說,如果第n+1個數加上去不一定使得和前n個數加起來 ...
There is a river of width n">nn. The left bank of the river is cell 0">00 and the right bank is c ...
題意 大概就是給你一棵樹,每個點都有自己的點權,能從一個點\(u\)跳到另一個點\(v\)當且僅當\(v\)點的權值是\(u->v\)這條路徑中最大的,現在想讓你求出從每個點為起點時最多能跳到 ...
題目鏈接:https://acm.hdu.edu.cn/showproblem.php?pid=7136 題意: 給一顆n個點的樹,每個點標記為1到n,每個點有自己的權值ai(保證不一樣)。有只猴子可以從u點跳到v點,當且僅當u點到v點的最短路徑上權值最大的點是v點。問猴子從k點開始(k ...
參考https://blog.csdn.net/libosbo/article/details/80038549 動態規划是求解決策過程最優化的數學方法。利用各個階段之間的關系,逐個求解,最終求得全局最優解,需要確認原問題與子問題、動態規划狀態、邊界狀態、邊界狀態結值、狀態轉移方程 ...
前言 動態規划是很重要的一個知識點,大大小小的比賽總會有一兩道DP題,足以說明動態規划的重要性。 動態規划主要是思想,並沒有固定的模板,那么,怎么判斷題目是不是動態規划呢? DP題一般都會滿足三個條件:子問題重疊、無后效性、最優子結構性質。 動態規划把原問題看作若干個重疊子問題,每個子問題 ...