結果
問題 | No.5001 排他的論理和でランニング |
ユーザー | koyumeishi |
提出日時 | 2018-03-17 01:12:06 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 57 ms / 1,500 ms |
コード長 | 5,172 bytes |
コンパイル時間 | 863 ms |
実行使用メモリ | 6,148 KB |
スコア | 52,428,750 |
最終ジャッジ日時 | 2020-03-12 19:49:34 |
ジャッジサーバーID (参考情報) |
judge6 / |
純コード判定しない問題か言語 |
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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 | 52 ms
5,380 KB |
testcase_01 | AC | 19 ms
5,384 KB |
testcase_02 | AC | 16 ms
5,376 KB |
testcase_03 | AC | 29 ms
5,376 KB |
testcase_04 | AC | 56 ms
5,380 KB |
testcase_05 | AC | 22 ms
5,380 KB |
testcase_06 | AC | 33 ms
6,148 KB |
testcase_07 | AC | 37 ms
5,380 KB |
testcase_08 | AC | 53 ms
5,384 KB |
testcase_09 | AC | 3 ms
5,380 KB |
testcase_10 | AC | 24 ms
5,376 KB |
testcase_11 | AC | 22 ms
5,380 KB |
testcase_12 | AC | 22 ms
5,376 KB |
testcase_13 | AC | 48 ms
5,380 KB |
testcase_14 | AC | 36 ms
5,376 KB |
testcase_15 | AC | 20 ms
5,376 KB |
testcase_16 | AC | 11 ms
5,384 KB |
testcase_17 | AC | 15 ms
5,384 KB |
testcase_18 | AC | 31 ms
5,380 KB |
testcase_19 | AC | 25 ms
5,380 KB |
testcase_20 | AC | 15 ms
5,376 KB |
testcase_21 | AC | 15 ms
5,380 KB |
testcase_22 | AC | 7 ms
5,384 KB |
testcase_23 | AC | 7 ms
5,380 KB |
testcase_24 | AC | 21 ms
5,380 KB |
testcase_25 | AC | 45 ms
5,380 KB |
testcase_26 | AC | 38 ms
5,380 KB |
testcase_27 | AC | 30 ms
6,148 KB |
testcase_28 | AC | 35 ms
5,376 KB |
testcase_29 | AC | 46 ms
5,380 KB |
testcase_30 | AC | 8 ms
5,380 KB |
testcase_31 | AC | 34 ms
5,380 KB |
testcase_32 | AC | 18 ms
5,380 KB |
testcase_33 | AC | 52 ms
5,380 KB |
testcase_34 | AC | 57 ms
5,376 KB |
testcase_35 | AC | 33 ms
5,380 KB |
testcase_36 | AC | 54 ms
5,380 KB |
testcase_37 | AC | 41 ms
5,380 KB |
testcase_38 | AC | 19 ms
5,380 KB |
testcase_39 | AC | 29 ms
5,380 KB |
testcase_40 | AC | 26 ms
5,376 KB |
testcase_41 | AC | 11 ms
5,376 KB |
testcase_42 | AC | 24 ms
6,148 KB |
testcase_43 | AC | 27 ms
5,380 KB |
testcase_44 | AC | 46 ms
5,376 KB |
testcase_45 | AC | 48 ms
5,380 KB |
testcase_46 | AC | 46 ms
5,376 KB |
testcase_47 | AC | 22 ms
5,380 KB |
testcase_48 | AC | 17 ms
5,380 KB |
testcase_49 | AC | 43 ms
5,380 KB |
ソースコード
#include <iostream> #include <vector> #include <cstdio> #include <sstream> #include <map> #include <string> #include <algorithm> #include <queue> #include <cmath> #include <functional> #include <set> #include <ctime> #include <random> #include <chrono> #include <cassert> #include <tuple> #include <utility> using namespace std; namespace { using Integer = long long; //__int128; template<class T, class S> istream& operator >> (istream& is, pair<T,S>& p){return is >> p.first >> p.second;} template<class T> istream& operator >> (istream& is, vector<T>& vec){for(T& val: vec) is >> val; return is;} template<class T> istream& operator , (istream& is, T& val){ return is >> val;} template<class T, class S> ostream& operator << (ostream& os, const pair<T,S>& p){return os << p.first << " " << p.second;} template<class T> ostream& operator << (ostream& os, const vector<T>& vec){for(size_t i=0; i<vec.size(); i++) os << vec[i] << (i==vec.size()-1?"":" "); return os;} template<class T> ostream& operator , (ostream& os, const T& val){ return os << " " << val;} template<class H> void print(const H& head){ cout << head; } template<class H, class ... T> void print(const H& head, const T& ... tail){ cout << head << " "; print(tail...); } template<class ... T> void println(const T& ... values){ print(values...); cout << endl; } template<class H> void eprint(const H& head){ cerr << head; } template<class H, class ... T> void eprint(const H& head, const T& ... tail){ cerr << head << " "; eprint(tail...); } template<class ... T> void eprintln(const T& ... values){ eprint(values...); cerr << endl; } class range{ Integer start_, end_, step_; public: struct range_iterator{ Integer val, step_; range_iterator(Integer v, Integer step) : val(v), step_(step) {} Integer operator * (){return val;} void operator ++ (){val += step_;} bool operator != (range_iterator& x){return step_ > 0 ? val < x.val : val > x.val;} }; range(Integer len) : start_(0), end_(len), step_(1) {} range(Integer start, Integer end) : start_(start), end_(end), step_(1) {} range(Integer start, Integer end, Integer step) : start_(start), end_(end), step_(step) {} range_iterator begin(){ return range_iterator(start_, step_); } range_iterator end(){ return range_iterator( end_, step_); } }; inline string operator "" _s (const char* str, size_t size){ return move(string(str)); } constexpr Integer my_pow(Integer x, Integer k, Integer z=1){return k==0 ? z : k==1 ? z*x : (k&1) ? my_pow(x*x,k>>1,z*x) : my_pow(x*x,k>>1,z);} constexpr Integer my_pow_mod(Integer x, Integer k, Integer M, Integer z=1){return k==0 ? z%M : k==1 ? z*x%M : (k&1) ? my_pow_mod(x*x%M,k>>1,M,z*x%M) : my_pow_mod(x*x%M,k>>1,M,z);} constexpr unsigned long long operator "" _ten (unsigned long long value){ return my_pow(10,value); } inline int k_bit(Integer x, int k){return (x>>k)&1;} //0-indexed mt19937 mt(chrono::duration_cast<chrono::nanoseconds>(chrono::steady_clock::now().time_since_epoch()).count()); template<class T> string join(const vector<T>& v, const string& sep){ stringstream ss; for(size_t i=0; i<v.size(); i++){ if(i>0) ss << sep; ss << v[i]; } return ss.str(); } inline string operator * (string s, int k){ string ret; while(k){ if(k&1) ret += s; s += s; k >>= 1; } return ret; } } constexpr long long mod = 9_ten + 7; class XorShift{ public: uint32_t x; uint32_t y; uint32_t z; uint32_t w; XorShift(){ x = 123456789; y = 362436069; z = 521288629; w = 88675123; } XorShift(uint32_t seed){ x = 123456789; y = 362436069; z = 521288629; w = seed; for(int i=0; i<100; i++){ (*this)(); } } uint32_t next() { uint32_t t = x ^ (x << 11); x = y; y = z; z = w; return w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); } uint32_t operator () () { return next(); } // [0, range) int operator () (int range){ return ((long long)next()) * range >> 32 ; } // [0, 1.0] double prob(){ return (next()&0xfffffff) * 3.7252903123397e-9; // 0xfffffff = 268,435,455 = 2^28-1 } template<class T> T& operator()(vector<T>& v){ return v[ next()%v.size() ]; } }; int main(){ auto start_time = chrono::steady_clock::now(); XorShift rng(114514); int n,m; cin >> n,m; vector<int> a(n); cin >> a; vector<int> ans(m); int best = 0; shuffle(a.begin(), a.end(), mt); for(int i=0; i<m; i++){ ans[i] = a[i]; best ^= ans[i]; } if( n==m ){ println(ans); return 0; } constexpr int max_score = (1<<20) - 1; int current = best; int itr = 0; for(itr=0; ; itr++){ if( (itr&511) == 0 ){ if( best == max_score ) break; auto current_time = chrono::steady_clock::now(); int elapsed = chrono::duration_cast<chrono::milliseconds>(current_time - start_time).count(); if(elapsed > 1000) break; } int x = rng(m); int y = rng(n-m) + m; current ^= a[x] ^ a[y]; swap(a[x], a[y]); if( current > best ){ best = current; ans = vector<int>( begin(a), begin(a)+m ); } } println(ans); eprintln("score =", best); eprintln("num itr = ", itr); return 0; }