Problem Solution——[TJOI2018] Mathematical Calculation I really didn’t see that this is a line segment tree
Xiaodou now has a number x, the initial value is 1. Xiaodou has Q operations, operat
Problem Solution——[TJOI2018] Mathematical Calculation I really didn’t see that this is a line segment tree
Xiaodou now has a number x, the initial value is 1. Xiaodou has Q operations, operat