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A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Given the locations and 阅读全文
posted @ 2020-10-07 16:01
CNoodle
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Given a string s, remove duplicate letters so that every letter appears once and only once. You must make sure your result is the smallest in lexicogr 阅读全文
posted @ 2020-10-07 07:19
CNoodle
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Implement the class UndergroundSystem that supports three methods: 1. checkIn(int id, string stationName, int t) A customer with id card equal to id, 阅读全文
posted @ 2020-10-07 05:22
CNoodle
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Given an array of non-negative integers arr, you are initially positioned at start index of the array. When you are at index i, you can jump to i + ar 阅读全文
posted @ 2020-10-07 00:48
CNoodle
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