UVA 10943 HOW do you add?
来源:互联网 发布:知乎那些曾经轰动一时 编辑:程序博客网 时间:2024/05/16 19:20
Question;
Larry is very bad at math — he usually uses a calculator, which
worked well throughout college. Unforunately, he is now struck in
a deserted island with his good buddy Ryan after a snowboarding
accident.
They’re now trying to spend some time figuring out some good
problems, and Ryan will eat Larry if he cannot answer, so his fate
is up to you!
It’s a very simple problem — given a number N, how many ways
can K numbers less than N add up to N?
For example, for N = 20 and K = 2, there are 21 ways:
0+20
1+19
2+18
3+17
4+16
5+15
…
18+2
19+1
20+0
Input
Each line will contain a pair of numbers N and K. N and K will both be an integer from 1 to 100,
inclusive. The input will terminate on 2 0’s.
Output
Since Larry is only interested in the last few digits of the answer, for each pair of numbers N and K,
print a single number mod 1,000,000 on a single line.
Sample Input
20 2
20 2
0 0
Sample Output
21
21
**提议概述:给你一个数N和K,让你将N拆分为K个数,并让你求出有多少种拆分的方法?
思路:这道题看到的时候,开始感觉挺忙然,但你会发现这道题用dp是不错的选择;
核心:dp[N][K]=dp[i][k-1] (0<=i<=N)**
(http://acm.hust.edu.cn/vjudge/contest/121559#problem/B)
#include <iostream>#include <cstdio>#include <cstring>using namespace std;int dp[105][105];void inti(){ memset(dp,0,sizeof(dp)); int i,j,k; for(i=0;i<105;i++) dp[0][i]=1; for(k=1;k<105;k++) { for(j=1;j<105;j++) { for(i=0;i<=j;i++) dp[j][k]=(dp[j][k]+dp[i][k-1])%1000000; } }}int main(){ int n,k; inti(); while (~scanf("%d%d",&n,&k)) { if(n==0&&k==0) break; printf("%d\n",dp[n][k]); } return 0;}
体会:遇到此类问题应先考虑dp会使问题变得简便!
- UVA 10943 - How do you add
- UVA 10943 How do you add?
- uva 10943 - How do you add?
- UVa 10943 - How do you add?
- UVa:10943 How do you add?
- UVA 10943 - How do you add?(dp)
- uva 10943 - How do you add?(dp)
- UVA 10943 - How do you add?
- UVA 10943 How do you add?
- uva 10943 How do you add? (DP)
- UVa 10943 - How do you add?
- UVA 10943 How do you add?
- UVA - 10943 How do you add?
- UVA 10943(How do you add?)
- UVA 10943 - How do you add?
- UVA 10943 HOW do you add?
- How do you add?(UVA 10943)
- uva 10943 How do you add?
- iOS-自定义TabBar
- ubuntu16.04安装jdk并配置
- 使用Cookie进行会话管理
- 学习笔记:ListView应用,分块右侧导航的简单分析
- HDU 5721Palace
- UVA 10943 HOW do you add?
- 【杭电oj】1013 - Digital Roots(数论 - 九余定理,好题)
- 属性动画步骤总结——包含xml实现与java代码实现
- CDN
- Git 入门 ---- Git 常用命令
- java-----hashCode和equals的区别
- 代码:一种类似outlook资源树的CSS样式
- 死锁浅析
- 《UNIX环境高级编程》--6系统数据文件和信息