結果
問題 | No.1330 Multiply or Divide |
ユーザー |
|
提出日時 | 2021-11-12 20:32:49 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 81 ms / 2,000 ms |
コード長 | 2,601 bytes |
コンパイル時間 | 1,682 ms |
コンパイル使用メモリ | 170,308 KB |
実行使用メモリ | 57,728 KB |
最終ジャッジ日時 | 2024-11-25 10:02:06 |
合計ジャッジ時間 | 5,257 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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ファイルパターン | 結果 |
---|---|
other | AC * 46 |
ソースコード
#include <bits/stdc++.h>#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}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, m, P, a[N], k[N], x[N], f[N << 6], Mx, Mt[N];inline void solve() {Rdn(n, m, P);forn (i, 1, n) Rdn(a[i]); sort (a + 1, a + n + 1);forn (i, 1, n) {x[i] = a[i];while (x[i] % P == 0) k[i] ++ , x[i] /= P;Mx = max(Mx, x[i]), Mt[k[i]] = max(Mt[k[i]], x[i]);}if (Mx <= 1 && m != 1) return Wtn("-1\n");memset(f, -1, sizeof f);f[0] = 1; int res = 0;while (1ll * f[res] * a[n] <= m) {forn (d, 0, 63) if (Mt[d]) f[res + d + 1] = max(f[res + d + 1], f[res] * Mt[d]); ++res;}Wtn(res + 1, '\n');}int Trd;int main() {Trd = 1;while(Trd--) init(), solve(); flush();return 0;}