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4498：Function Curve
题目描述
Given sequences of k1, k2, … kn, a1, a2, …, an and b1, b2, …, bn. Consider following function:
Then we draw F(x) on a xy-plane, the value of x is in the range of [0,100]. Of course, we can get a curve from that plane.
Can you calculate the length of this curve？
Then we draw F(x) on a xy-plane, the value of x is in the range of [0,100]. Of course, we can get a curve from that plane.
Can you calculate the length of this curve？
输入解释
The first line of the input contains one integer T (1<=T<=15), representing the number of test cases.
Then T blocks follow, which describe different test cases.
The first line of a block contains an integer n ( 1 <= n <= 50 ).
Then followed by n lines, each line contains three integers ki, ai, bi ( 0<=ai, bi<100, 0<ki<100 ) .
Then T blocks follow, which describe different test cases.
The first line of a block contains an integer n ( 1 <= n <= 50 ).
Then followed by n lines, each line contains three integers ki, ai, bi ( 0<=ai, bi<100, 0<ki<100 ) .
输出解释
For each test case, output a real number L which is rounded to 2 digits after the decimal point, means the length of the curve.
输入样例
2 3 1 2 3 4 5 6 7 8 9 1 4 5 6
输出样例
215.56 278.91
提示
All test cases are generated randomly.
来自杭电HDUOJ的附加信息
| Recommend | liuyiding |
最后修改于 2020-10-25T23:14:07+00:00 由爬虫自动更新
共提交 0 次
通过率 --%
| 时间上限 | 内存上限 |
| 2000/1000MS(Java/Others) | 65535/65535K(Java/Others) |
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