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摘要： Sqrt(x) 思路一: 暴力 public int mySqrt(int x) { long begin = 1L; while ((begin * begin) <= x) { begin++; } return Long.valueOf(begin).intValue() - 1; } 思路二 阅读全文

摘要： 问题: docker-compose 启动 java 容器时报错 library initialization failed - unable to allocate file descriptor table - out of memoryPicked up JAVA_TOOL_OPTIONS: 阅读全文