Datasets:
| \left\{\begin{array}{l}\frac{t}{2}, t \in[0,10] \\5, t \in(10,120] \\-\frac{t}{180}+\frac{17}{3}, t \in(120,300] \\4, t \in(300,540] \\\frac{t}{60}-5, t \in(540,600] \\5, t \in(600,627] \\\frac{39 t+2000}{400}, t \in(627,658]\end{array}\right. |