基本情况
AB秒了。C跨度有点太大,题解暂时都还没理解。
C. Recover an RBS
待补题
- Educational Codeforces Round Rated 132educational codeforces round rated round codeforces rated based educational codeforces round 151 construction educational codeforces round educational codeforces round 147 cf-educational educational codeforces round educational codeforces round 158 educational codeforces contest round educational codeforces monsters round educational codeforces round 119