jiaodong

[INFO 2021-07-13 14:14:49,825] e2e.py: 781  ... still waiting for command to finish (85950 seconds) ...
[INFO 2021-07-13 14:15:19,852] e2e.py: 781  ... still waiting for command to finish (85980 seconds) ...
[INFO 2021-07-13 14:15:49,171] e2e.py: 781  ... still waiting for command to finish (86010 seconds) ...
[INFO 2021-07-13 14:16:19,560] e2e.py: 781  ... still waiting for command to finish (86040 seconds) ...
[INFO 2021-07-13 14:16:49,650] e2e.py: 781  ... still waiting for command to finish (86070 seconds) ...
[INFO 2021-07-13 14:17:19,317] e2e.py: 781  ... still waiting for command to finish (86100 seconds) ...
[INFO 2021-07-13 14:17:50,003] e2e.py: 781  ... still waiting for command to finish (86130 seconds) ...
[INFO 2021-07-13 14:18:20,098] e2e.py: 781  ... still waiting for command to finish (86161 seconds) ...
[INFO 2021-07-13 14:18:50,144] e2e.py: 781  ... still waiting for command to finish (86191 seconds) ...
[INFO 2021-07-13 14:19:19,719] e2e.py: 781  ... still waiting for command to finish (862

jiaodong

2021-07-13 11:53:27,029 INFO updater.py:241 -- [1/7] Waiting for SSH to become available
2021-07-13 11:53:27,029 INFO updater.py:244 -- Running `uptime` as a test.
2021-07-13 11:53:27,068 INFO command_runner.py:361 -- Waiting for IP
2021-07-13 11:53:27,119 INFO command_runner.py:369 -- Not yet available, retrying in 5 seconds
2021-07-13 11:53:32,386 INFO command_runner.py:369 -- Not yet available, retrying in 5 seconds
2021-07-13 11:53:37,431 INFO command_runner.py:369 -- Not yet available, retrying in 5 seconds
2021-07-13 11:53:42,474 INFO command_runner.py:366 -- Received: 52.38.18.250
2021-07-13 11:53:42,474 INFO log_timer.py:27 -- NodeUpdater: ins_kjnUu8eNaXanezjjmDYMgTfD: Got IP  [LogTimer=15428ms]
2021-07-13 11:53:42,474 VINFO command_runner.py:509 -- Running `uptime`
2021-07-13 11:53:42,474 VVINFO command_runner.py:512 -- Full command is `ssh -tt -i /tmp/secret3liz_60k -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o IdentitiesOnly=yes -o ExitOnForwardFailure=yes -o ServerAliveInterval=5 

jiaodong

2021-07-06 19:57:43,117	INFO worker.py:740 -- Connecting to existing Ray cluster at address: 192.168.86.157:6379
(pid=60632) 2021-07-06 19:57:44,187	INFO http_state.py:72 -- Starting HTTP proxy with name 'SERVE_CONTROLLER_ACTOR:SERVE_PROXY_ACTOR-node:192.168.86.157-0' on node 'node:192.168.86.157-0' listening on '127.0.0.1:8000'
2021-07-06 19:57:45,140	INFO api.py:716 -- Started detached Serve instance in namespace 'ns'.
2021-07-06 19:57:45,146	INFO api.py:418 -- Updating deployment 'Fail'.
(pid=60634) INFO:     Started server process [60634]
(pid=60632) 2021-07-06 19:57:45,241	INFO backend_state_manager.py:885 -- Adding 1 replicas to backend 'Fail'.
(pid=60632) 2021-07-06 19:57:45,247	INFO runtime_env.py:114 -- Using preinstalled conda environment: ray
(pid=60632) Adding SHOULD_START to replica_tag: Fail#bHWVIB, backend_tag: Fail
(pid=60638) 2021-07-06 19:57:47,354	ERROR backend_worker.py:83 -- Exception while running deployment class __init__: division by zero
(pid=60638) 2021-07-06 19:57:47,354	INFO backen

jiaodong

// 1.1 Implement an algorithm to determine if a string has all unique characters. What if you cannot use additional data structures.

public boolean isUnique(String s){
  int length = s.length();
  // ASCII table only has 128 unique characters, incluing commands
  if(length > 256) return false;
  boolean[] table = new boolean[256];
  for(int i = 0; i < length; i++){
      // Read ASCII int value of character
      int code = (int) s.charAt(i);

jiaodong

public class Evaluate
{
	public static void main(String[] args)
	{
		Stack<String> ops = new Stack<String>();
		Stack<Double> vals = new Stack<Double>();
		while(!StdIn.isEmpty())
		{
			String s = StdIn.readString();
			if 		(s.equals("("))				;