Samsung’s Unpacked event midweek revealed three new phones and two sets of earbuds, but the real standout, as usual, is the Galaxy S26 Ultra. This year, the Ultra actually features a bit of genuine tech innovation — and no, we don’t mean it folds.
暴力做法是对每个位置向右扫描找第一个更大值,O(n²)。可抽象为:元素像一排人,身高为数值。当前人「下一个更大」= 他右侧第一个没被挡住的人(比当前矮的都被挡住)。单调栈用 O(n) 维护「右侧候选更大值」:倒序遍历,弹掉 ≤ 当前的,栈顶即答案,再入栈当前值。
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Powerful_Crab_2905,更多细节参见搜狗输入法2026
if (exchanged) break;