UVa 10300 Ecological Premium （water ver.）

UVa 10300 Ecological Premium （water ver.）2014-07-16 csdn博客 synapse710300 - Ecological PremiumTime limit: 3.000 seconds

http://uva.onlinejudge.org/index.php？option=com_onlinejudge&Itemid=8&category=94&page=show_problem&problem=1241

German farmers are given a premium depending on the conditions at their farmyard. Imagine the following simplified regulation: you know the size of each farmer"s farmyard in square meters and the number of animals living at it. We won"t make a difference between different animals, although this is far from reality. Moreover you have information about the degree the farmer uses environment-friendly equipment and practices, expressed in a single integer greater than zero. The amount of money a farmer receives can be calculated from these parameters as follows. First you need the space a single animal occupies at an average. This value （in square meters） is then multiplied by the parameter that stands for the farmer"s environment-friendliness, resulting in the premium a farmer is paid per animal he owns. To compute the final premium of a farmer just multiply this premium per animal with the number of animals the farmer owns.

Input

The first line of input contains a single positive integer n （<20）, the number of test cases. Each test case starts with a line containing a single integer f （0<f<20）, the number of farmers in the test case. This line is followed by one line per farmer containing three positive integers each: the size of the farmyard in square meters, the number of animals he owns and the integer value that expresses the farmer’s environment-friendliness. Input is terminated by end of file. No integer in the input is greater than 100000 or less than 0.

Output

For each test case output one line containing a single integer that holds the summed burden for Germany"s budget, which will always be a whole number. Do not output any blank lines.

Sample Input

1 1 1

2 2 2

3 3 3

2 3 4

8 9 2

9 1 8

6 12 1

8 1 1

10 30 40

9 8 5

100 1000 70

Sample Output

7445

学英语：

First you need the space a single animal occupies at an average. This value （in square meters） is then multiplied by the parameter that stands for the farmer"s environment-friendliness, resulting in the premium a farmer is paid per animal he owns. To compute the final premium of a farmer just multiply this premium per animal with the number of animals the farmer owns.

首先你需要（计算出）每只动物所占的平均面积，用这一数值（单位：m^2）乘上农民的环境友好度，这一结果是这位农民需要付给他的每只动物的保险费（P）。要计算一位农民的最终的保险费，只需要将P乘上他所拥有的的动物数即可。

说了这么多，也就是面积x环境友好度。

完整代码：

/*0.009s*/#include <cstdio>int main（void）{int Case, Test, sum, x, y, z;scanf（"%d", &Case）;while （Case--）{sum = 0;scanf（"%d", &Test）;while （Test--）{scanf（"%d%d%d", &x, &y, &z）;sum += x * z;}printf（"%d
", sum）;}return 0;}