526互联

Red-Blue

Educational Codeforces Round 148 (Rated for Div. 2) D1. Red-Blue Operations

[Easy Version传送门](https://codeforces.com/contest/1832/problem/D1) [Hard Version传送门](https://codeforces.com/contest/1832/problem/D1) 题目大意： ![](https:// ......
Educational Codeforces Operations Red-Blue Round
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