Psong:
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2017 ACM/ICPC Asia Regional Qingdao Online 2017 ACM/ICPC Asia Regional Beijing Online Codeforces 812E(Nim变形) CodeForces 767E(贪心) CodeForces 741C(二分图) CodeForces 735E(树形DP) HDU 5952 2016 沈阳三日游 HDU 5898 (数位DP) HDU 5900(区间DP) Codeforces Round #114 (Div. 1) C Wizards and Numbers Codeforces Round #110 (Div. 1) C Cipher Codeforces Round #110 (Div. 1) D Clues
2017 ACM/ICPC Asia Regional Qingdao Online
2017 ACM/ICPC Asia Regional Beijing Online
Codeforces 812E(Nim变形)
CodeForces 767E(贪心)
CodeForces 741C(二分图)
CodeForces 735E(树形DP)
HDU 5952
2016 沈阳三日游
HDU 5898 (数位DP)
HDU 5900(区间DP)
Codeforces Round #114 (Div. 1) C Wizards and Numbers
Codeforces Round #110 (Div. 1) C Cipher
Codeforces Round #110 (Div. 1) D Clues