codeforces 162 div 1占坑，D,E还没搞A. Escape from StonesB. Good SequencesC. Choosing BallsD. Colorfu
codeforces 162 div 1
占坑，D,E还没搞
A. Escape from Stones
B. Good Sequences
C. Choosing Balls
D. Colorful Stones
E. Roadside Trees
codeforces 162 div 1
占坑，D,E还没搞
A. Escape from Stones
B. Good Sequences
C. Choosing Balls
D. Colorful Stones
E. Roadside Trees