herlo

herlo:

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D. Journey(广搜)

Codeforces Round #605 (Div. 3) E - Nearest Opposite Parity (超级源点)

Codeforces Round #606 (Div. 2) D. Let's Play the Words?(贪心+map)

Codeforces Round #606 (Div. 2) E - Two Fairs(DFS,反向思维)

反思 19-12-20

Codeforces Round #592 (Div. 2) C - The Football Season(推公式)

Codeforces Round #613 (Div. 2) D - Dr. Evil Underscores(思维,位运算)

Educational Codeforces Round 80 (Rated for Div. 2) C - Two Arrays(DP)

2019 ICPC 南昌网络赛 - Subsequence (子串判断,预处理,超时)

2019 ICPC 南昌网络赛 - Max answer (区间和,区间最值)