\nI *think* the orange checkmark means I completed the problem previously, but does it mean that I completed it by itself rather than as part of whatever collection I\'m currently working through?\n\n![image](https://assets.leetcode.com/users/images/239538e2-fe1e-4a93-9fbf-0aac9cd9fe41_1618661948.991616.png)

\nI think the orange checkmark means I completed the problem previously, but does it mean that I completed it by itself rather than as part of whatever collecti