模板引入
一维前缀和
https://www.nowcoder.com/share/jump/9257752291725692504394 解法一:暴力枚举
在每次提供 l 与 r 的时候,都从 l 开始遍历数组,直到遇到 r 停止,这个方法的时间复杂度为 O(N * q)
解法二:前…
How good is search?
• Completeness: Does it always find a solution if one exists? 是否通解 • Optimality: Is the solution optimal (i.e., lowest cost)? 是否最优 • Time Complexity: How long does it take to find a solution? 时间多久 • Space Complexit…