P7760 [COCI 2016/2017 #5] TUNA
Description
A fisherman caught $N$ tuna last night. He plans to sell these fish to a platform.
For each fish, the platform provides two estimated values $P_1, P_2$. If the difference between these two values is no more than $X$, then the larger one is taken as the value of the fish. Otherwise, if the difference exceeds $X$, then another value $P_3$ is taken.
Now you are given the values for $N$ fish (each fish may have $2$ or $3$ values). Find the total value of all fish.
Input Format
The first line contains an integer $N$, the number of tuna.
The second line contains an integer $X$.
The following lines are divided into $N$ parts, each describing one fish. Each part has one of the following two formats:
- The part consists of exactly one line containing two integers $P_1, P_2$.
- The part consists of two lines: the first line contains two integers $P_1, P_2$, and the second line contains one integer $P_3$.
Output Format
Output the total value of all fish.
Explanation/Hint
**Sample 2 Explanation.**
The fisherman caught $4$ tuna, and the value of $X$ is $2$:
|Tuna ID|$p_1$|$p_2$|$p_3$|Difference|Final value|
| :----------: | :----------: | :----------: | :----------: | :----------: | :----------: |
|$1$|$3$|$5$|/|$2 \le 2$|$5$|
|$2$|$2$|$8$|$4$|$6 \gt 2$|$4$|
|$3$|$6$|$5$|/|$1 \le 2$|$6$|
|$4$|$6$|$3$|$7$|$3 \le 7$|$7$|
So the total value is $5+4+6+7=22$.
**Constraints.**
For $100\%$ of the testdata, $1 \le N \le 20$, $1 \le X \le 10$, $1 \le P_1, P_2, P_3 \le 100$.
**Notes.**
**Translated from [COCI 2016-2017](https://hsin.hr/coci/archive/2016_2017/) [CONTEST #5](https://hsin.hr/coci/archive/2016_2017/contest5_tasks.pdf) _T1 Tuna_.**
**The score of this problem follows the original COCI problem, with a full score of $50$.**
Translated by ChatGPT 5