第358场周赛
并查集模板
2208. 将数组和减半的最少操作次数
771. 宝石与石头
931. 下降路径最小和
167. 两数之和 II - 输入有序数组
2178.拆分成最多数目的正偶数
2600.K件物品的最大和
2679. 矩阵中的和
445. 两数相加 II
1262. 可被三整除的最大和
2481.分割圆的最少切割次数
1494. 并行课程 II
1177. 构建回文串检测
逆序数
1375. 二进制字符串前缀一致的次数
2475. 数组中不等三元组的数目
1483. 树节点的第 K 个祖先
leetcode第349场周赛心得
1170. 比较字符串最小字母出现频次
2611. 老鼠和奶酪
2352. 相等行列对
2465.不同的平均值数目
2559. 统计范围内的元音字符串数
2517. 礼盒的最大甜蜜度
1130.叶值的最小代价生成树
1048. 最长字符串链
codeforces 295B
2418. 按身高排序
1095C
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