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2020-2021:teams:intrepidsword:2020.07.10-2020.07.16_周报 [2020/07/17 16:58] chielo [jsh] |
2020-2021:teams:intrepidsword:2020.07.10-2020.07.16_周报 [2020/07/17 22:26] (当前版本) prime21 [pmxm] |
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| 行 26: | 行 26: | ||
| ==== pmxm ==== | ==== pmxm ==== | ||
| + | 本周个人训练: | ||
| + | codeforces 2600难度的题目10道 | ||
| + | TCO 2015 round 1A/1B | ||
| + | 组队训练: | ||
| + | |||
| + | 个人问题: | ||
| + | |||
| + | 能用简单平衡树搞定的问题写了权值线段树,有点得不偿失 | ||
| + | 完美匹配建模问题需要补 | ||
| + | |||
| + | 组队问题: | ||
| + | 团队中期题dirty,团队中期题进度有点慢 | ||
| ==== jsh ==== | ==== jsh ==== | ||
| 行 41: | 行 53: | ||
| ==== pmxm ==== | ==== pmxm ==== | ||
| + | 一道赛中瞎想出来的题 | ||
| + | The 2015 ACM-ICPC Asia Beijing Regional Contest E - Stamps | ||
| + | |||
| + | 转移非常简单,$dp_{k+1,n}$表示(n,k)状态对应的答案 | ||
| + | |||
| + | $$ | ||
| + | dp_{i,j} = dp_{i,j-1} + dp[i-1][j]/j | ||
| + | $$ | ||
| ==== jsh ==== | ==== jsh ==== | ||