Problem	letters
User	ethanlinHoucheng
Submission Time	2023-05-16 08:28:42
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

letters.cpp: In function ‘void solve()’:
letters.cpp:25:21: error: expected ‘(’ before ‘islower’
25 | else if islower(s[i]){
| ^~~~~~~
| (