結果
問題 | No.97 最大の値を求めるくえり |
ユーザー | はまやんはまやん |
提出日時 | 2017-07-31 15:14:12 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,420 ms / 5,000 ms |
コード長 | 3,809 bytes |
コンパイル時間 | 1,583 ms |
コンパイル使用メモリ | 171,768 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-11 00:08:54 |
合計ジャッジ時間 | 6,939 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 11 ms
5,248 KB |
testcase_02 | AC | 162 ms
5,248 KB |
testcase_03 | AC | 164 ms
5,248 KB |
testcase_04 | AC | 20 ms
5,248 KB |
testcase_05 | AC | 22 ms
5,248 KB |
testcase_06 | AC | 22 ms
5,248 KB |
testcase_07 | AC | 34 ms
5,248 KB |
testcase_08 | AC | 49 ms
5,248 KB |
testcase_09 | AC | 78 ms
5,248 KB |
testcase_10 | AC | 135 ms
5,248 KB |
testcase_11 | AC | 190 ms
5,248 KB |
testcase_12 | AC | 250 ms
5,248 KB |
testcase_13 | AC | 307 ms
5,248 KB |
testcase_14 | AC | 1,420 ms
5,248 KB |
testcase_15 | AC | 612 ms
5,248 KB |
testcase_16 | AC | 335 ms
5,248 KB |
testcase_17 | AC | 107 ms
5,248 KB |
testcase_18 | AC | 82 ms
5,248 KB |
ソースコード
#include<bits/stdc++.h> #define rep(i,a,b) for(int i=a;i<b;i++) #define rrep(i,a,b) for(int i=a;i>=b;i--) #define fore(i,a) for(auto &i:a) #pragma GCC optimize ("-O3") using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); } //--------------------------------------------------------------------------------------------------- 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<100003> mint; /*--------------------------------------------------------------------------------------------------- ∧_∧ ∧_∧ (´<_` ) Welcome to My Coding Space! ( ´_ゝ`) / ⌒i / \ | | / / ̄ ̄ ̄ ̄/ | __(__ニつ/ _/ .| .|____ \/____/ (u ⊃ ---------------------------------------------------------------------------------------------------*/ unsigned xor128_x = 123456789, xor128_y = 362436069, xor128_z = 521288629, xor128_w = 88675123; unsigned xor128() { unsigned t = xor128_x ^ (xor128_x << 11); xor128_x = xor128_y; xor128_y = xor128_z; xor128_z = xor128_w; return xor128_w = xor128_w ^ (xor128_w >> 19) ^ (t ^ (t >> 8)); } void generateA(int N, int A[]) { for (int i = 0; i < N; ++i) A[i] = xor128() % 100003; } //--------------------------------------------------------------------------------------------------- int N, Q, A[101010]; int solve1(int q) { int res = 0; rep(i, 0, N) res = max(res, (mint(A[i]) * q).get()); return res; } int solve2(int q) { mint x = q; rrep(i, 100002, 1) { int y = (mint(i) / x).get(); int k = lower_bound(A, A + N, y) - A; if (k < N) if (A[k] == y) return i; } return -1; } //--------------------------------------------------------------------------------------------------- void _main() { cin >> N >> Q; generateA(N, A); sort(A, A + N); rep(_, 0, Q) { int q; cin >> q; int ans = 0; if (q != 0) { if (N <= 1010) ans = solve1(q); else ans = solve2(q); } printf("%d\n", ans); } }