룬아님의 취중코딩

외부 스킴을 사용하여 앱을 킬때에 encode되어있는 url을 포함하여 넘겨줄 때가 있다. myScheme://info?url=%2fsomething -> myScheme://info?url=/something 이때 받는 쪽에서 Uri객체의 getQueryParameter() 함수를 사용하면 encode되어있는 url이 자동으로 decode되기 때문에 따로 decode처리를 해줄 필요가 없다. String url = uri.getQueryParameter("url"); //url = "/something" 아래는 getQueryParameter의 코드이다. @Nullable public String getQueryParameter(String key) { if (isOpaque()) { throw new..

Brackets A string S consisting of N characters is considered to be properly nested if any of the following conditions is true: S is empty; S has the form "(U)" or "[U]" or "{U}" where U is a properly nested string; S has the form "VW" where V and W are properly nested strings. For example, the string "{[()()]}" is properly nested but "([)()]" is not. Write a function: class Solution { public int..

NumberOfDiscIntersections We draw N discs on a plane. The discs are numbered from 0 to N − 1. An array A of N non-negative integers, specifying the radiuses of the discs, is given. The J-th disc is drawn with its center at (J, 0) and radius A[J]. We say that the J-th disc and K-th disc intersect if J ≠ K and the J-th and K-th discs have at least one common point (assuming that the discs contain ..

Triangle An array A consisting of N integers is given. A triplet (P, Q, R) is triangular if 0 ≤ P A[R], A[Q] + A[R] > A[P], A[R] + A[P] > A[Q]. For example, consider array A such that: A[0] = 10 A[1] = 2 A[2] = 5 A[3] = 1 A[4] = 8 A[5] = 20 Triplet (0, 2, 4) is triangular. Write a function: class Solution { public int solution(int[] A); } that, given an array A con..