結果
| 問題 |
No.3089 Base M Numbers, But Only 0~9
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-04-04 22:00:12 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,575 bytes |
| コンパイル時間 | 4,170 ms |
| コンパイル使用メモリ | 309,124 KB |
| 実行使用メモリ | 7,844 KB |
| 最終ジャッジ日時 | 2025-04-04 22:00:25 |
| 合計ジャッジ時間 | 5,058 ms |
|
ジャッジサーバーID (参考情報) |
judge6 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 5 |
| other | AC * 13 WA * 6 |
ソースコード
#pragma GCC optimize ("O3,inline,omit-frame-pointer,no-asynchronous-unwind-tables,fast-math")
#include <bits/stdc++.h>
#include <unordered_map>
#include <stdlib.h>
using namespace std;
#define rep(i, a, n) for(ll i = a; i < n; i++)
#define rrep(i, a, n) for(ll i = a; i >= n; i--)
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
//constexpr ll MOD = 1000000007;
constexpr ll MOD = 998244353;
constexpr int IINF = 1001001001;
constexpr ll INF = 1LL<<60;
template<class t,class u> void chmax(t&a,u b){if(a<b)a=b;}
template<class t,class u> void chmin(t&a,u b){if(b<a)a=b;}
template<int MOD> struct ModInt {
static const int Mod = MOD; unsigned x; ModInt() : x(0) { }
ModInt(signed sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
ModInt(signed long long sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
int get() const { return (int)x; }
ModInt &operator+=(ModInt that) { if ((x += that.x) >= MOD) x -= MOD; return *this; }
ModInt &operator-=(ModInt that) { if ((x += MOD - that.x) >= MOD) x -= MOD; return *this; }
ModInt &operator*=(ModInt that) { x = (unsigned long long)x * that.x % MOD; return *this; }
ModInt &operator/=(ModInt that) { return *this *= that.inverse(); }
ModInt operator+(ModInt that) const { return ModInt(*this) += that; }
ModInt operator-(ModInt that) const { return ModInt(*this) -= that; }
ModInt operator*(ModInt that) const { return ModInt(*this) *= that; }
ModInt operator/(ModInt that) const { return ModInt(*this) /= that; }
ModInt inverse() const { long long a = x, b = MOD, u = 1, v = 0;
while (b) { long long t = a / b; a -= t * b; std::swap(a, b); u -= t * v; std::swap(u, v); }
return ModInt(u); }
bool operator==(ModInt that) const { return x == that.x; }
bool operator!=(ModInt that) const { return x != that.x; }
ModInt operator-() const { ModInt t; t.x = x == 0 ? 0 : Mod - x; return t; }
};
template<int MOD> ostream& operator<<(ostream& st, const ModInt<MOD> a) { st << a.get(); return st; };
template<int MOD> ModInt<MOD> operator^(ModInt<MOD> a, unsigned long long k) {
ModInt<MOD> r = 1; while (k) { if (k & 1) r *= a; a *= a; k >>= 1; } return r; }
typedef ModInt<998244353> mint;
int main() {
ios::sync_with_stdio(false);
std::cin.tie(nullptr);
ll m; cin >> m;
string n; cin >> n;
mint ans = 0, num = 1;
for(auto c: n){
ans *= (m%MOD);
ll x = (m/10)+ (m%10 > (c-'0') ? 1: 0);
ans *= (x%MOD);
ans += num*((((x-1)*5)%MOD)*(x%MOD) + ((c-'0')*x)%MOD);
num *= (x%MOD);
}
cout << ans << endl;
return 0;
}