HDU Electrical Outlets
来源:互联网 发布:如何ringerlink数据库 编辑:程序博客网 时间:2024/04/30 03:02
Electrical Outlets
Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 877 Accepted Submission(s): 792
Problem Description
Roy has just moved into a new apartment. Well, actually the apartment itself is not very new, even dating back to the days before people had electricity in their houses. Because of this, Roy's apartment has only one single wall outlet, so Roy can only power one of his electrical appliances at a time.
Roy likes to watch TV as he works on his computer, and to listen to his HiFi system (on high volume) while he vacuums, so using just the single outlet is not an option. Actually, he wants to have all his appliances connected to a powered outlet, all the time. The answer, of course, is power strips, and Roy has some old ones that he used in his old apartment. However, that apartment had many more wall outlets, so he is not sure whether his power strips will provide him with enough outlets now.
Your task is to help Roy compute how many appliances he can provide with electricity, given a set of power strips. Note that without any power strips, Roy can power one single appliance through the wall outlet. Also, remember that a power strip has to be powered itself to be of any use.
Roy likes to watch TV as he works on his computer, and to listen to his HiFi system (on high volume) while he vacuums, so using just the single outlet is not an option. Actually, he wants to have all his appliances connected to a powered outlet, all the time. The answer, of course, is power strips, and Roy has some old ones that he used in his old apartment. However, that apartment had many more wall outlets, so he is not sure whether his power strips will provide him with enough outlets now.
Your task is to help Roy compute how many appliances he can provide with electricity, given a set of power strips. Note that without any power strips, Roy can power one single appliance through the wall outlet. Also, remember that a power strip has to be powered itself to be of any use.
Input
Input will start with a single integer 1 <= N <= 20, indicating the number of test cases to follow. Then follow N lines, each describing a test case. Each test case starts with an integer 1 <= K <= 10, indicating the number of power strips in the test case. Then follow, on the same line, K integers separated by single spaces, O1 O2 . . . OK, where 2 <= Oi <= 10, indicating the number of outlets in each power strip.
Output
Output one line per test case, with the maximum number of appliances that can be powered.
Sample Input
33 2 3 410 4 4 4 4 4 4 4 4 4 44 10 10 10 10
Sample Output
73137
思路:只要知道前一个会被后面的那个占一个位置,直到最后一个不会被占。
AC代码:
#include<iostream>using namespace std;int main(){int t,n,i,a,s;while(scanf("%d",&t)!=EOF){while(t--){scanf("%d",&n);s=0;for(i=1;i<=n;i++){ scanf("%d",&a); if(i==n)s+=a; else s+=a-1;}printf("%d\n",s);}}return 0;}
- HDU Electrical Outlets
- hdu-2304-Electrical Outlets
- HDU 2304 Electrical Outlets
- hdu 2304 Electrical Outlets
- HDU#2304:Electrical Outlets
- HDU 2304 Electrical Outlets
- Electrical Outlets
- HDU--杭电--2304--Electrical Outlets--水题
- HDOJ(HDU) 2304 Electrical Outlets(求和、、)
- POJ 2636 && HDU 2304 Electrical Outlets(水~)
- POJ 2636 Electrical Outlets
- ZOJ 2807 Electrical Outlets
- 1232. Electrical Outlets
- zoj 2807 Electrical Outlets
- sicily--1232. Electrical Outlets
- poj 2636 Electrical Outlets
- HOJ 2111 Electrical Outlets
- HDU2304:Electrical Outlets
- Show 与 ShowModal 区别
- C# API 大全
- linux下字体乱码问题的解决
- 禁用VS2010的IntelliSense
- 在VS2010开发环境中CString 和char转换
- HDU Electrical Outlets
- DatePickerDialog---漂亮的弹出时间框
- ubuntu config default java
- Java String StringBuffer的区别(性能)
- 影响中国互联网的100人
- HDU1421
- 有感
- poj 1797 Heavy Transportation
- C++中各种类型的成员变量的初始化方法(mark-好)