2017-2018 ACM-ICPC East Central North America Regional Contest (ECNA 2017)
Problem A
Solved by ultmaster. 04:33 (+)
Problem B
Solved by kblack. 03:18 (+1)
Problem C
Solved by zerol. 00:09 (+)
Problem D
Solved by kblack. 00:21 (+)
温暖的签到。
Problem E
Solved by ultmaster. 01:09 (+3)
Problem F
Solved by kblack. 01:04 (+)
温暖的树形签到。
Problem G
Solved by kblack. 01:31 (+)
温暖的 DP 签到。
Problem H
Solved by zerol. 00:17 (+)
Problem I
Solved by ultmaster. 02:17 (+)
Problem J
Solved by zerol. 01:22 (+)