結果
問題 | No.1709 Indistinguishable by MEX |
ユーザー | XD |
提出日時 | 2021-11-09 15:44:05 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 10 ms / 2,000 ms |
コード長 | 3,421 bytes |
コンパイル時間 | 1,730 ms |
コンパイル使用メモリ | 169,004 KB |
実行使用メモリ | 10,952 KB |
最終ジャッジ日時 | 2024-11-18 15:11:11 |
合計ジャッジ時間 | 3,577 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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 | 3 ms
9,672 KB |
testcase_01 | AC | 2 ms
7,752 KB |
testcase_02 | AC | 3 ms
7,624 KB |
testcase_03 | AC | 3 ms
7,624 KB |
testcase_04 | AC | 3 ms
7,492 KB |
testcase_05 | AC | 2 ms
7,628 KB |
testcase_06 | AC | 3 ms
7,628 KB |
testcase_07 | AC | 3 ms
7,624 KB |
testcase_08 | AC | 8 ms
9,796 KB |
testcase_09 | AC | 7 ms
9,672 KB |
testcase_10 | AC | 6 ms
8,776 KB |
testcase_11 | AC | 5 ms
8,392 KB |
testcase_12 | AC | 6 ms
9,668 KB |
testcase_13 | AC | 7 ms
8,772 KB |
testcase_14 | AC | 7 ms
8,648 KB |
testcase_15 | AC | 7 ms
9,032 KB |
testcase_16 | AC | 9 ms
10,188 KB |
testcase_17 | AC | 7 ms
10,052 KB |
testcase_18 | AC | 10 ms
10,952 KB |
testcase_19 | AC | 10 ms
10,696 KB |
testcase_20 | AC | 9 ms
10,572 KB |
testcase_21 | AC | 9 ms
10,952 KB |
testcase_22 | AC | 8 ms
10,312 KB |
testcase_23 | AC | 9 ms
9,544 KB |
testcase_24 | AC | 8 ms
9,420 KB |
testcase_25 | AC | 8 ms
10,444 KB |
testcase_26 | AC | 2 ms
7,628 KB |
testcase_27 | AC | 5 ms
8,520 KB |
testcase_28 | AC | 5 ms
9,928 KB |
ソースコード
#include <bits/stdc++.h> #pragma GCC optmized(fast) #define forn(i,s,t) for(register int i=(s); i<=(t); ++i) #define forl(i,s,t) for(register i64 i=(s); i<=(t); ++i) #define form(i,s,t) for(register int i=(s); i>=(t); --i) #define rep(i,s,t) for(register int i=(s); i<(t); ++i) #define IT(u) for(register int i=G[u]; i; i=E[i].nxt) using namespace std; namespace FASTIO { const int SIZ = 1 << 26 | 1; char ibuf[SIZ], obuf[SIZ], *iS = ibuf, *iT = ibuf, *oS = obuf, *oT = obuf + SIZ - 1, qwq[60], qaq; #define gc() (iS == iT && (iT = (iS = ibuf) + fread(ibuf, 1, SIZ, stdin), iS == iT) ? EOF : *iS++) template<typename T> inline void Rdn(T& A) { register bool fl = 0; register char ch = gc(); A = 0; while(!isdigit(ch)) fl = (ch == '-'), ch = gc(); while(isdigit(ch)) A = (A * 10) + (ch & 15), ch = gc(); fl && (A = -A); } inline void Rdn(char& c) {while((c = gc()) == ' ' || c == '\n' || c == '\r');} inline void Rdn(char* s) { while((*s = gc()) == ' ' || *s == '\n' || *s == '\r') ; if(*s == EOF) return ; while(*s != ' ' && *s != '\n' && *s != '\r' && *s != EOF) *(++s) = gc(); *s = 0; } template<typename T, typename ...U> inline void Rdn(T& A, U& ...B) {Rdn(A), Rdn(B...);} inline void flush() {fwrite(obuf, 1, oS - obuf, stdout), oS = obuf;} inline void pc(char c) {*oS ++ = c; if(oS == oT) flush();} template<typename T> inline void Wtn(T A) { if(!A) return pc('0'); if(A < 0) pc('-'), A = -A; while(A) qwq[++qaq] = A % 10 + '0', A /= 10; while(qaq) pc(qwq[qaq -- ]); } inline void Wtn(char A) {pc(A);} inline void Wtn(char *s) {while(*s) pc(*s), ++s;} inline void Wtn(const char *s) {while(*s) pc(*s), ++s;} template<typename T, typename ...U> inline void Wtn(T A, U ...B) {Wtn(A), Wtn(B...);} #undef gc } const int Mod = 998244353; namespace Modint { struct Mint { int res; Mint() {} Mint(int _r) : res(_r) {} inline friend Mint operator + (const Mint& A, const Mint& B) { return Mint((A.res + B.res >= Mod) ? (A.res + B.res - Mod) : (A.res + B.res)); } inline friend Mint operator - (const Mint& A, const Mint& B) {return A + Mint(Mod - B.res); } inline friend Mint operator * (const Mint& A, const Mint& B) {return Mint(1ll * A.res * B.res % Mod); } inline friend Mint& operator += (Mint& A, const Mint& B) {return A = A + B; } inline friend Mint& operator -= (Mint& A, const Mint& B) {return A = A - B; } inline friend Mint& operator *= (Mint& A, const Mint& B) {return A = A * B; } inline friend Mint q_pow(Mint p, int k = Mod - 2) { Mint res(1); for (; k; k >>= 1, p *= p) (k & 1) && (res *= p, 0); return res; } } ; } using Modint :: Mint; using FASTIO :: Rdn; using FASTIO :: Wtn; using FASTIO :: flush; typedef long long i64; typedef double f64; typedef unsigned long long u64; typedef pair<i64, i64> pii; typedef pair<int, u64> piu; const int N = 2e5 + 5; const i64 INF = 1e18; inline void init() {} int n, P[N], pos[N]; Mint fac[N]; inline void solve() { Rdn(n); forn (i, 1, n) Rdn(P[i]), pos[P[i]] = i; int l = min(pos[0], pos[1]), r = max(pos[0], pos[1]); fac[0] = Mint(1); forn (i, 1, n) fac[i] = fac[i - 1] * Mint(i); Mint res(1); int num = 2; rep (i, 2, n) if (l > pos[i] || pos[i] > r) { if (pos[i] < l) l = pos[i]; else r = pos[i]; num ++ ; } else { res *= Mint(r - l + 1 - num), num ++ ; } Wtn(res.res, '\n'); } int Trd; int main() { Trd = 1; while(Trd--) init(), solve(); flush(); return 0; }