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
3
5
1 1 1
2 2 2
3 3 3
2 3 4
8 9 2
3
9 1 8
6 12 1
8 1 1
3
10 30 40
9 8 5
100 1000 70
Sample Output
38
86
7445
题意:第一行输入一个测试用例的数量,第二行输入农夫测试用例的数量,接着是m行数据的输入,每行3个数据,第一个数据是农夫 拥有的土地面积,第二个数据是农夫拥有的动物的数量,第三个是生态系数。计算公式是 土地面积/动物数量 × 生态系数 ×动物数量
AC代码如下:
1 #include<stdio.h> 2 3 int main() 4 { 5 int n, m, a, b, c, sum; 6 scanf("%d", &n); 7 while (n--) 8 { 9 scanf("%d", &m); 10 sum=0; 11 while(m--) 12 { 13 scanf("%d%d%d", &a, &b, &c); 14 sum+=a*c; 15 } 16 printf("%d\n", sum); 17 } 18 return 0; 19 }