无自我介绍,然后简单问简历里你觉得哪些是你的亮点。说了中间件。
- 问kafka怎么实现可靠性?
- 问怎么设计一个批处理订单的rpc接口?
- 问redis的分布式锁?
- 问分库分表注意点
- 问项目细节,怎么设置价格的mysql变量?
sql题
SELECT name, AVG(score) AS average_score
FROM scores
GROUP BY name
ORDER BY average_score DESC;
算法题,秒了
import java.util.Arrays;
import java.util.Comparator;
public class VersionComparator {
public static void main(String[] args) {
String[] versions = {"1.45.0", "1.5", "6", "3.3.3.3.3.3.3"};
Arrays.sort(versions, new Comparator<String>() {
@Override
public int compare(String o1, String o2) {
return compareVersions(o1, o2);
}
});
System.out.println("Sorted versions: " + Arrays.toString(versions));
}
private static int compareVersions(String v1, String v2) {
String[] vals1 = v1.split("\\.");
String[] vals2 = v2.split("\\.");
int length = Math.max(vals1.length, vals2.length);
for (int i = 0; i < length; i++) {
// Convert the substring to integers to compare
int val1 = i < vals1.length ? Integer.parseInt(vals1[i]) : 0;
int val2 = i < vals2.length ? Integer.parseInt(vals2[i]) : 0;
if (val1 < val2) {
return -1;
} else if (val1 > val2) {
return 1;
}
}
return 0;
}
}