LeetCode 862. 和至少為 K 的最短子數組
思路： 采用滑動窗口 注意點 左邊移動的時候，如果去掉的數是負數，那么右邊游標要做回滾； 右邊的游標移動時，出現sum<=0，說明此次的計算沒有意義，不要再進行下去； 代碼 ...
原文：[LeetCode] 862. Shortest Subarray with Sum at Least K 和至少為K的最短子數組
Return thelengthof the shortest, non empty, contiguoussubarray of A with sum at least K . If there is no non empty subarray with sum at leastK, return . Example : Example : Example : Note: lt A.lengt ...
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