Submission #2230524
Source Code Expand
main = do
n <- readLn :: I0 Int
print $ 2 * n
Submission Info
| Submission Time | |
|---|---|
| Task | A - 流行 |
| User | ururu76 |
| Language | Haskell (GHC 7.10.3) |
| Score | 0 |
| Code Size | 55 Byte |
| Status | CE |
Compile Error
Main.hs:2:20:
Not in scope: type constructor or class ‘I0’
Perhaps you meant ‘IO’ (imported from Prelude)