結果
| 問題 | No.1740 Alone 'a' |
| ユーザー |
 fgwiebfaoish
|
| 提出日時 | 2021-11-12 21:31:56 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
AC
|
| 実行時間 | 650 ms / 2,000 ms |
| コード長 | 4,990 bytes |
| コンパイル時間 | 1,153 ms |
| コンパイル使用メモリ | 115,024 KB |
| 実行使用メモリ | 24,832 KB |
| 最終ジャッジ日時 | 2024-05-04 05:03:53 |
| 合計ジャッジ時間 | 11,710 ms |
|
ジャッジサーバーID （参考情報） |
judge1 / judge2 |
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テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 24 ms
17,920 KB |
| testcase_01 | AC | 25 ms
17,664 KB |
| testcase_02 | AC | 24 ms
17,664 KB |
| testcase_03 | AC | 650 ms
24,704 KB |
| testcase_04 | AC | 649 ms
24,832 KB |
| testcase_05 | AC | 43 ms
17,700 KB |
| testcase_06 | AC | 38 ms
17,828 KB |
| testcase_07 | AC | 25 ms
17,792 KB |
| testcase_08 | AC | 24 ms
17,408 KB |
| testcase_09 | AC | 24 ms
17,792 KB |
| testcase_10 | AC | 23 ms
17,664 KB |
| testcase_11 | AC | 112 ms
18,432 KB |
| testcase_12 | AC | 412 ms
23,168 KB |
| testcase_13 | AC | 385 ms
22,784 KB |
| testcase_14 | AC | 481 ms
24,448 KB |
| testcase_15 | AC | 28 ms
17,792 KB |
| testcase_16 | AC | 375 ms
22,656 KB |
| testcase_17 | AC | 28 ms
17,792 KB |
| testcase_18 | AC | 84 ms
17,920 KB |
| testcase_19 | AC | 412 ms
23,296 KB |
| testcase_20 | AC | 223 ms
20,352 KB |
| testcase_21 | AC | 298 ms
21,504 KB |
| testcase_22 | AC | 356 ms
22,144 KB |
| testcase_23 | AC | 351 ms
22,528 KB |
| testcase_24 | AC | 226 ms
20,352 KB |
| testcase_25 | AC | 230 ms
20,480 KB |
| testcase_26 | AC | 295 ms
21,376 KB |
| testcase_27 | AC | 313 ms
21,888 KB |
| testcase_28 | AC | 264 ms
20,864 KB |
| testcase_29 | AC | 481 ms
24,576 KB |
| testcase_30 | AC | 305 ms
21,632 KB |
| testcase_31 | AC | 365 ms
22,656 KB |
| testcase_32 | AC | 271 ms
20,864 KB |
| testcase_33 | AC | 363 ms
22,272 KB |
| testcase_34 | AC | 94 ms
18,304 KB |
| testcase_35 | AC | 258 ms
20,480 KB |
| testcase_36 | AC | 220 ms
20,224 KB |
| testcase_37 | AC | 96 ms
18,304 KB |
| testcase_38 | AC | 189 ms
19,712 KB |
| testcase_39 | AC | 50 ms
17,572 KB |
| testcase_40 | AC | 130 ms
18,816 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
using System.Threading;
using System.Runtime.CompilerServices;
using System.Diagnostics;
//using nint=System.Int32;
static class Program{
const int mod=998244353;
static void Main(){
Sc sc=new Sc();
var n=sc.I;
var s=sc.S;
var a=new int[n];
for(int i = 0;i<n;i++) {a[i]=s[i]-'a';}
Console.WriteLine("{0}",Fu1(a));
}
static int Fu1(int[] a){
int n=a.Length;
Mint ans=0;
var dp=new Mint[n+1,2,2];
dp[0,0,0]=1;
for(int i=0;i<n;i++){
for(int j=0;j<2;j++){
for(int k=0;k<2;k++){
int ul=j==0?a[i]:25;
for(int d=k==1?1:0;d<=ul;d++){dp[i+1,(j==1||d<ul)?1:0,(k==1||d==0)?1:0]+=dp[i,j,k];}
}
}
}
for(int j=0;j<2;j++){ans+=dp[n,j,1];}
return (int)dp[n,1,1];
}
}
public struct Mint{
const int mod=998244353;
private long d;
public Mint(long d){this.d=d;}
public static implicit operator Mint(long d){return new Mint(d%mod);}
public static explicit operator long(Mint d){return d.d;}
public override string ToString(){return d.ToString();}
public static Mint operator+(Mint a,long b){a.d=(mod+a.d+b%mod)%mod;return a;}
public static Mint operator+(Mint a,Mint b){a.d=(a.d+b.d)%mod;return a;}
public static Mint operator-(Mint a,long b){a.d=(mod+a.d-b%mod)%mod;return a;}
public static Mint operator-(Mint a,Mint b){a.d=(mod+a.d-b.d)%mod;return a;}
public static Mint operator*(Mint a,long b){a.d=b%mod*a.d%mod;return a;}
public static Mint operator*(Mint a,Mint b){a.d=a.d*b.d%mod;return a;}
public static Mint operator/(Mint a,long b){a.d=a.d*Mi(b)%mod;return a;}
public static Mint operator/(Mint a,Mint b){a.d=a.d*Mi(b.d)%mod;return a;}
public static bool operator==(Mint a,long b){return (long)a==b;}
public static bool operator!=(Mint a,long b){return (long)a!=b;}
public override bool Equals(object obj){return false;}
public override int GetHashCode(){return 0;}
public static long Mi(long a){
a=(a+mod)%mod;
long b=mod,u=1,v=0;
while(b>0){
long t=a/b;
a-=t*b;(a,b)=(b,a);
u-=t*v;(u,v)=(v,u);
}
u%=mod;
if(u<0){u+=mod;}
return u%mod;
}
}
public class Sc{
public int I{get{return int.Parse(Console.ReadLine());}}
public long L{get{return long.Parse(Console.ReadLine());}}
public double D{get{return double.Parse(Console.ReadLine());}}
public string S{get{return Console.ReadLine();}}
public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
public string[] Sa{get{return Console.ReadLine().Split();}}
public object[] Oa{get{return Console.ReadLine().Split();}}
public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
public int[] Ia3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),int.Parse);}
public int[] Ia3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),int.Parse);}
public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
public long[] La3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),long.Parse);}
public long[] La3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),long.Parse);}
public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}}
public double[] Da3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),double.Parse);}
public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}
public T[] Arr<T>(int n,Func<int,T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i);}return a;}
public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}
public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}
public (T,T) Tp2<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]));}
public (T,T,T) Tp3<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]),Ct<T>(s[2]));}
public (T,T,T,T) Tp4<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]),Ct<T>(s[2]),Ct<T>(s[3]));}
public (T,T,T,T,T) Tp5<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]),Ct<T>(s[2]),Ct<T>(s[3]),Ct<T>(s[4]));}
public (T1,T2) Tp2<T1,T2>(){var s=Console.ReadLine().Split();return (Ct<T1>(s[0]),Ct<T2>(s[1]));}
public (T1,T1,T2) Tp3<T1,T2>(){var s=Console.ReadLine().Split();return (Ct<T1>(s[0]),Ct<T1>(s[1]),Ct<T2>(s[2]));}
private T Ct<T>(string s){return (T)Convert.ChangeType(s,typeof(T));}
}