摘要:
[Codeforces Round 626 (Div. 2, based on Moscow Open Olympiad in Informatics)] D. Present(异或性质,按位拆分,双指针) D. Present time limit per test 3 seconds memor 阅读全文
摘要:
[Codeforces Round 626 (Div. 2, based on Moscow Open Olympiad in Informatics)] D. Present(异或性质,按位拆分,树桩数组) D. Present time limit per test 3 seconds memo 阅读全文