Can we solve it using DP ? If yes, is the solution similar to the solution of the classical problem ? appreciate if you describe the whole solution. If no, how to solve it? at least, what topics or techniques required? Also, I would like to know generally how oneprovethat DP cannot ...
给出DP的递归求解公式: count[amount] = min{ count[amount - coins[i] ] } , 0 <= i < n; 这里count[amount] 表示组合出amount数值所需要的最小硬币数目,coins是硬币面值的数组。 根据这个公式,我们能轻松的给出伪代码: coinChange(int[] coins,intamount): let count[0,1... amount+1] be ane...
=(x,y).因此满足dp的最优子结构条件 时间复杂度会有O(n*m) 详解和用树的思想分析符合dp 1func count( n, m )23forifrom0to n4forjfrom0to m5ifi equals06table[i, j] =17elseifj equals08table[i, j] =1ifi%S[j] equals0else09elseifS_j greater than i10table[i, j] = table[i, j ...
322. Coin Change刷题笔记 用自底向上的dp算法 class Solution: def coinChange(self, coins: List[int], amount: int) -> int: dp = [0] + [float('inf')]*amount for i in range(1,amount+1): for coin in coins: if i-coin >= 0: dp[i] = min(dp[i],dp[i-coin]+1) if dp[-1...
674 - Coin Change 描述:dp问题,需要状态转移,并且还需要统计,如果每次都要进行计算的话,也会超时的 #include <cstdio> int num[7500]; int main() { // freopen("a.txt","r",stdin); int n,v[6]= {1,5,10,25,50}; num[0]=1;
HDU-2069-Coin Change 链接:https://vjudge.net/problem/HDU-2069 题意: 给你面值有1,5,10,25,50的币种,然后随意输入一个钱的数目,问用这些面值刚好凑成这个钱的方法有多少个(最多100个硬币) 思路: dp,二位数组,dp[i][j]。表示i值用j个硬币有几种方法。 好像这题有0的输入。。真坑 代码: .....
【杭电oj】2069 - Coin Change(限制完全背包) 题目 有1,5,10,25,50物种硬币,求一个数n最多可以有几种组合方式,且总硬币数不超过100。 dp[i][j] : i表示当前硬币数,j表示背包大小,dp表示组合数。 先打一个表然后O(1)查询 AC代码: #include <iostream> #include <stdio.h> #include <string.h...
一种的多重背包背包——Coin Change http://acm.zjnu.edu.cn/CLanguage/showproblem?problem_id=1140题目链接我的暴力算法#include <iostream> #include <algorithm> using namespace std; int main() { int n; while (cin >> n){ int counter = 0; int sum = 0; for (int i = 0;i <= n;i ...
UVA 674 Coin Change (DP) Suppose there are 5 types of coins: 50-cent, 25-cent, 10-cent, 5-cent, and 1-cent. We want to make changes with these coins for a given amount of money. For example, if we have 11 cents, then we can make changes with one 10-cent coin and one 1-...
I just write here a structure for coin change problem: 433A — Kitahara Haruki's Gift http://codeforces.com/problemset/problem/433/A int recursion(int index, int amount){//initially index is 0, amount = amount of destination money