結果
問題 | No.545 ママの大事な二人の子供 |
ユーザー | koyumeishi |
提出日時 | 2017-07-15 00:00:35 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 56 ms / 2,000 ms |
コード長 | 4,349 bytes |
コンパイル時間 | 1,118 ms |
コンパイル使用メモリ | 111,096 KB |
実行使用メモリ | 9,728 KB |
最終ジャッジ日時 | 2024-10-08 00:11:45 |
合計ジャッジ時間 | 2,777 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 * 32 |
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(){ returnrange_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-indexedmt19937 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;int main(){int n;cin >> n;vector<long long> a(n), b(n);vector<long long> d(n);for(int i=0; i<n; i++){cin >> a[i],b[i];}set<long long> s_a, s_b;const int unko = 16;for(int x=0; x<(1<<min(unko,n)); x++){long long val = 0;for(int i=0; i<min(unko,n); i++){val += k_bit(x,i) ? -a[i] : b[i];}s_a.insert(val);}if(n-unko>0){for(int x=0; x<(1<<(n-unko)); x++){long long val = 0;for(int i=0; i<n-unko; i++){val += k_bit(x,i) ? -a[i+unko] : b[i+unko];}s_b.insert(val);}}else{s_b.insert(0);}long long ans = 1ll<<60;for(auto x : s_a){auto itr = s_b.lower_bound(-x);if( itr != s_b.end() ){ans = min(ans, abs(x+*itr));if( next(itr) != s_b.end() ){ans = min(ans, abs(x+*next(itr)));}}if( itr != s_b.begin() ){ans = min(ans, abs(x+*prev(itr)));}}assert(ans != (1ll<<60));assert(ans>=0);println(ans);return 0;}