2021/01/12

2021/01/12

模拟赛

vp了一场CF

https://codeforces.ml/contest/1438

B相加不大于的性质重要

C从奇偶性考虑，问题就迎刃而解，比赛这想了挺长时间

D构造算法假掉了

CF的赛制下时间比较紧啊

做题

CF1438A (构造)

CF1438B (贪心)

CF1438C (构造)

CF1439D (贪心, 构造)

CF1381C (贪心, 图匹配, 构造)

https://codeforces.ml/contest/1438/submission/104073695

https://codeforces.ml/contest/1438/submission/104073933

https://codeforces.ml/contest/1438/submission/104076563

https://codeforces.ml/contest/1381/submission/104090700

https://codeforces.ml/contest/1383/submission/104101475