#210608 (Nim) No.167 N^M mod 10

• 問題: No.167 N^M mod 10
• ユーザー: 6soukiti29
• 提出日時: 2017-10-19 21:40:45
• 言語: Nim (2.2.0)
• 結果: AC
• 実行時間: 2 ms / 1,000 ms
• コード長: 1,755 bytes
• コンパイル時間: 3,340 ms
• コンパイル使用メモリ: 64,988 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-09-22 01:43:17
• 合計ジャッジ時間: 4,279 ms
• ジャッジサーバーID （参考情報）: judge5 / judge1

ファイルパターン	結果
sample	AC * 2
other	AC * 27

コンパイルメッセージ

/home/judge/data/code/Main.nim(1, 8) Warning: imported and not used: 'sequtils' [UnusedImport]
/home/judge/data/code/Main.nim(1, 17) Warning: imported and not used: 'strutils' [UnusedImport]

ソースコード

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import sequtils,strutils
proc ctoi(c : char): int =
    return ord(c) - ord('0')
    
proc stringmod(s : string, m : int) : int =
    var
        ans = 0
    for i in 0..s.high:
        ans *= 10
        ans += s[i].ctoi
        ans = ans mod m
    return ans
var
    N = stdin.readline
    M = stdin.readline
    t : int
    m = N[^1].ctoi
    e = m * m
if M == "0":
    echo 1
else:
    if m == 0:
        echo 0
        
    elif m == 1:
        echo 1
        
    elif m == 2:
        case stringmod(M, 4)
        of 0:
            echo 6
        of 1:
            echo 2
        of 2:
            echo 4
        of 3:
            echo 8
        else:
            discard
            
    elif m == 3:
        case stringmod(M, 4)
        of 0:
            echo 1
        of 1:
            echo 3
        of 2:
            echo 9
        of 3:
            echo 7
        else:
            discard
            
    elif m == 4:
        case stringmod(M, 2)
        of 0:
            echo 6
        of 1:
            echo 4
        else:
            discard
            
        
    elif m == 5:
        echo 5
        
    elif m == 6:
        echo 6
        
    elif m == 7:
        case stringmod(M, 4)
        of 0:
            echo 1
        of 1:
            echo 7
        of 2:
            echo 9
        of 3:
            echo 3
        else:
            discard
            
    elif m == 8:
        case stringmod(M, 4)
        of 0:
            echo 6
        of 1:
            echo 8
        of 2:
            echo 4
        of 3:
            echo 2
        else:
            discard
    
    elif m == 9:
        case stringmod(M, 2)
        of 0:
            echo 1
        of 1:
            echo 9
        else:
            discard
 
 
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