字符串杂题(KMP & manacher & 哈希 & trie)
Chef And Special Dishes - CodeChef CHEFSPL - Virtual Judge
P3498 [POI 2010] KOR-Beads - 洛谷
Toponyms - 黑暗爆炸 1174 - Virtual Judge
Language Recognition - POJ 3576 - Virtual Judge
Best Division - HDU 5845 - Virtual Judge
神奇项链 - BZOJ 3790 - Virtual Judge
P3435 [POI 2006] OKR-Periods of Words - 洛谷
Kpm的MC密码 - BZOJ 3439 - Virtual Judge