yumao

摘要： Expanding RodsTime Limit: 1000MSMemory Limit: 30000KTotal Submissions: 8686Accepted: 2152DescriptionWhen a thin rod of length L is heated n degrees, it expands to a new length L'=(1+n*C)*L, where C is the coefficient of heat expansion. When a thin rod is mounted on two solid walls and then heate 阅读全文