Transform backpressure gaps: Pull-through transforms execute on-demand. Data doesn't cascade through intermediate buffers; it flows only when the consumer pulls. Stop iterating, stop processing.
Москвичей предупредили о резком похолодании09:45
，这一点在safew官方版本下载中也有详细论述
Aldi said the wage increase will benefit 28,000 staff members, and says it makes its entry-level workers the highest paid of all supermarket staff, including its fellow budget chain Lidl.
// 核心逻辑：弹出栈中≤当前元素的所有值（这些值无法成为左侧元素的「更大值」）