打了两次div2,终于能打div1了,还是挺兴奋的
Positive AND(10.2)
Replace for X(10.3)
Inversions(10.4)
D-Dimensional MST(10.4)
Adding Squares(10.4)
Compress all Subsegments(10.5)
Rooted Minimum Spanning Tree(10.5)
Random Knapsack(10.8)
Village Road Network(未做)
题解赛后发