提出 #60985893

---

ソースコード 拡げる

{-# LANGUAGE BangPatterns #-}
import           Control.Monad
import qualified Data.ByteString.Char8 as BS
import           Data.Maybe
import           Data.List
readInt = fst . fromJust . BS.readInt
readIntList = map readInt . BS.words
getInt = readInt <$> BS.getLine
getIntList = readIntList <$> BS.getLine
f :: Int -> Int -> Int -> String
f a b c
  | a == b && b == c = "Yes"
  | (sum [a, b, c]) == 2*(maximum [a, b, c]) = "Yes"
  | otherwise = "No"
main :: IO ()
main = do
    [a, b, c] <- getIntList
    putStrLn $ f a b c

提出情報

コンパイルエラー

app/Main.hs:2:1: warning: [-Wunused-imports]
    The import of ‘Control.Monad’ is redundant
      except perhaps to import instances from ‘Control.Monad’
    To import instances alone, use: import Control.Monad()
  |
2 | import           Control.Monad
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

app/Main.hs:5:1: warning: [-Wunused-imports]
    The import of ‘Data.List’ is redundant
      except perhaps to import instances from ‘Data.List’
    To import instances alone, use: import Data.List()
  |
5 | import           Data.List
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^

app/Main.hs:6:1: warning: [-Wmissing-signatures]
    Top-level binding with no type signature:
      readInt :: BS.ByteString -> Int
  |
6 | readInt = fst . fromJust . BS.readInt
  | ^^^^^^^

app/Main.hs:7:1: warning: [-Wmissing-signatures]
    Top-level binding with no type signature:
      readIntList :: BS.ByteString -> [Int]
  |
7 | readIntList = map readInt . BS.words
  | ^^^^^^^^^^^

app/Main.hs:8:1: warning: [-Wmissing-signatures]
    Top-level binding with no type signature: getInt :: IO Int
  |
8 | getInt = readInt <$> BS.getLine
  | ^^^^^^

app/Main.hs:8:1: warning: [-Wunused-top-binds]
    Defined but not used: ‘getInt’
  |
8 | getInt = readInt <$> BS.getLine
  | ^^^^^^

app/Main.hs:9:1: warning: [-Wmissing-signatures]
    Top-level binding with no type signature: getIntList :: IO [Int]
  |
9 | getIntList = readIntList <$> BS.getLine
  | ^^^^^^^^^^

ジャッジ結果