uva 10954 Add All(排序)
2015-02-14 17:03
387 查看
uva 10954 Add All
Yup!! The problem name reflects your task; just add a set of numbers. But you may feel yourselves condescended, to write a C/C++ program just to add a set of numbers. Such a problem will simply question your erudition. So, let’s add some flavor of ingenuityto it.
Addition operation requires cost now, and the cost is the summation of those two to be added. So, to add
1 and 10, you need a cost of 11. If you want to add
1, 2 and 3. There are several ways –
1 + 2 = 3, cost = 3 3 + 3 = 6, cost = 6 Total = 9 | 1 + 3 = 4, cost = 4 2 + 4 = 6, cost = 6 Total = 10 | 2 + 3 = 5, cost = 5 1 + 5 = 6, cost = 6 Total = 11 |
Input
Each test case will start with a positive number, N (2 ≤ N ≤ 5000) followed byN positive integers (all are less than 100000). Input is terminated by a case where the value of
N is zero. This case should not be processed.
Output
For each case print the minimum total cost of addition in a single line.Sample Input Output for Sample Input
3 1 2 3 4 1 2 3 4 0 | 9 19 |
解题思路:每次都找出最小的两个数相加,记录这个和,然后把和放回原来的数组替换掉之前的两个数,重复这个操作直到剩下一个和,然后把之前记录的和剩下的和全部相加,就是答案。
#include<stdio.h> #include<string.h> #include<stdlib.h> #include<algorithm> using namespace std; int num[5005], sum[5005]; int main() { int n; while (scanf("%d", &n), n) { for (int i = 0; i < n; i++) { scanf("%d", &num[i]); } int cnt = 0, cnt2 = 0; while (cnt < n - 1) { sort(num + cnt, num + n); num[cnt + 1] += num[cnt]; sum[cnt2++] = num[cnt + 1]; cnt++; } int Sum = 0; for (int i = 0; i < cnt2; i++) { Sum += sum[i]; } printf("%d\n", Sum); } return 0; }
相关文章推荐
- uva 10954 add all
- UVa 10954 Add All ——优先队列
- UVA 10954 Add All
- uva 10954 add all
- UVa 10954 - Add All
- 哈夫曼编码(Add All,uva 10954)
- UVa 10954 Add All (石子合并_优先队列)
- UVa 10954 - Add All
- UVA 10954 Add All(Huffman编码)
- uva - 10954 - Add All(优先队列、哈夫曼编码思想)
- uva 10954 Add All
- uva 10954 - Add All
- 【NOIP合并果子】uva 10954 add all【贪心】——yhx
- UVA - 10954 - Add All (贪心)
- 【NOIP合并果子】uva 10954 add all【贪心】——yhx
- uva10954 - Add All
- UVA - 10954 Add All(贪心+优先队列)
- Uva 10954 - Add All
- uva 10954 Add All
- UVa 10954 - Add All