brutal force
time limit exceeded
Greedy Algorithm
174 to 178 (4) 180 to 185 (6) 192 to 197 (6) 262 (1)
8.3 83/363 All free easy problems
8.13 140/367
8.17 152/368
8.18 160/368
8.23 180/368
8.26 196/371
8.31 211/373
9.02 223/374
9.06 235/378
9.07 242/378
9.08 252/378
9.17 293/386
9.26 310/390