scrivener.cpp: In function 'void Typeletter(char)':
scrivener.cpp:7:11: warning: operation on 'k' may be undefined [-Wsequence-point]
7 | ans[v[++ k] = k] = L;
| ^~~~
scrivener.cpp:7:11: warning: operation on 'k' may be undefined [-Wsequence-point]
scrivener.cpp: In function 'void UndoCommands(int)':
scrivener.cpp:14:7: warning: operation on 'k' may be undefined [-Wsequence-point]
14 | v[++ k] = v[k - U - 1];
| ^~~~
/usr/bin/ld: /tmp/ccZ4viY4.o: in function `main':
grader.cpp:(.text.startup+0xff): undefined reference to `TypeLetter(char)'
collect2: error: ld returned 1 exit status