Out-of-order responses cause stale UI. Requests get increasing ids; only the LATEST issued request may update state. Input: each line is issue N or resolve N. Print state changes: on each resolve, print render N if N is the latest issued id, else ignore N.
Input: event lines. Output: one line per resolve.
Your program reads from stdin and prints to stdout.
Example 1
Input: issue 1 issue 2 resolve 1 resolve 2
Output: ignore 1 render 2
Hints
Out-of-order responses cause stale UI. Requests get increasing ids; only the LATEST issued request may update state. Input: each line is issue N or resolve N. Print state changes: on each resolve, print render N if N is the latest issued id, else ignore N.
Input: event lines. Output: one line per resolve.
Your program reads from stdin and prints to stdout.
Example 1
Input: issue 1 issue 2 resolve 1 resolve 2
Output: ignore 1 render 2
Hints