結果
問題 | No.5020 Averaging |
ユーザー | ぴぃいいいい |
提出日時 | 2024-02-25 16:26:57 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 903 ms / 1,000 ms |
コード長 | 4,967 bytes |
コンパイル時間 | 8,093 ms |
コンパイル使用メモリ | 320,760 KB |
実行使用メモリ | 6,548 KB |
スコア | 20,851,077 |
最終ジャッジ日時 | 2024-02-25 16:27:56 |
合計ジャッジ時間 | 53,967 ms |
ジャッジサーバーID (参考情報) |
judge11 / judge12 |
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 | 902 ms
6,548 KB |
testcase_01 | AC | 900 ms
6,548 KB |
testcase_02 | AC | 902 ms
6,548 KB |
testcase_03 | AC | 902 ms
6,548 KB |
testcase_04 | AC | 902 ms
6,548 KB |
testcase_05 | AC | 902 ms
6,548 KB |
testcase_06 | AC | 902 ms
6,548 KB |
testcase_07 | AC | 902 ms
6,548 KB |
testcase_08 | AC | 901 ms
6,548 KB |
testcase_09 | AC | 902 ms
6,548 KB |
testcase_10 | AC | 901 ms
6,548 KB |
testcase_11 | AC | 901 ms
6,548 KB |
testcase_12 | AC | 902 ms
6,548 KB |
testcase_13 | AC | 902 ms
6,548 KB |
testcase_14 | AC | 902 ms
6,548 KB |
testcase_15 | AC | 901 ms
6,548 KB |
testcase_16 | AC | 901 ms
6,548 KB |
testcase_17 | AC | 901 ms
6,548 KB |
testcase_18 | AC | 901 ms
6,548 KB |
testcase_19 | AC | 902 ms
6,548 KB |
testcase_20 | AC | 902 ms
6,548 KB |
testcase_21 | AC | 902 ms
6,548 KB |
testcase_22 | AC | 901 ms
6,548 KB |
testcase_23 | AC | 902 ms
6,548 KB |
testcase_24 | AC | 902 ms
6,548 KB |
testcase_25 | AC | 902 ms
6,548 KB |
testcase_26 | AC | 901 ms
6,548 KB |
testcase_27 | AC | 902 ms
6,548 KB |
testcase_28 | AC | 902 ms
6,548 KB |
testcase_29 | AC | 901 ms
6,548 KB |
testcase_30 | AC | 901 ms
6,548 KB |
testcase_31 | AC | 900 ms
6,548 KB |
testcase_32 | AC | 901 ms
6,548 KB |
testcase_33 | AC | 902 ms
6,548 KB |
testcase_34 | AC | 902 ms
6,548 KB |
testcase_35 | AC | 902 ms
6,548 KB |
testcase_36 | AC | 902 ms
6,548 KB |
testcase_37 | AC | 902 ms
6,548 KB |
testcase_38 | AC | 902 ms
6,548 KB |
testcase_39 | AC | 903 ms
6,548 KB |
testcase_40 | AC | 902 ms
6,548 KB |
testcase_41 | AC | 902 ms
6,548 KB |
testcase_42 | AC | 901 ms
6,548 KB |
testcase_43 | AC | 901 ms
6,548 KB |
testcase_44 | AC | 901 ms
6,548 KB |
testcase_45 | AC | 901 ms
6,548 KB |
testcase_46 | AC | 900 ms
6,548 KB |
testcase_47 | AC | 902 ms
6,548 KB |
testcase_48 | AC | 902 ms
6,548 KB |
testcase_49 | AC | 902 ms
6,548 KB |
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> using namespace std; using namespace atcoder; using mint = modint998244353; #define Yes(n) cout << ((n) ? "Yes" : "No" ) << endl #define print(var) std::cout<<#var<<"="<<(var)<<std::endl #define all(a) (a).begin(), (a).end() #define vi vector<int> #define vvi vector<vi> #define vvvi vector<vvi> #define ll long long #define vll vector<ll> #define vvll vector<vll> #define vvvll vector<vvll> #define vmi vector<mint> #define vvmi vector<vmi> #define vvvmi vector<vvmi> #define vs vector<string> #define pii pair<int,int> #define vpii vector<pii> #define vvpii vector<vpii> #define bit(x,i)(((x)>>(i))&1) #define inf (1<<30) #define INF (1ll<<60) template<typename T> inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); } template<typename T> inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); } template<class T, class F> T nibutan(T ok, T ng, const F &f){while(abs(ok-ng)>1){T mid = (ok+ng)/2;(f(mid)?ok:ng) = mid;}return ok;} template<class T> vector<T> digit(T x){vector<T> res; while(x>0){res.push_back(x%10); x/=10;} return res;} #ifdef LOCAL #include "../../cpp-dump/dump.hpp" #else #define cpp_dump #endif static uint32_t xor128(void){ static uint32_t x=123456789,y=362436069,z=521288629,w=88675123; uint32_t t; t=(x^(x<<11));x=y;y=z;z=w; return( w=(w^(w>>19))^(t^(t>>8)) ); } int randrange(int a){return (uint64_t(xor128()) * a >> 32); } double randDouble(double a,double b){return a+(b-a)*xor128()/(double)ULONG_MAX;} inline double get_time() { using namespace std::chrono; return duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count(); } double start_time = get_time(); struct IO{ int n; vll a,b; IO(){} void input(){ cin >> n; a.resize(n); b.resize(n); for(int i=0;i<n;i++){ cin >> a[i] >> b[i]; } } }; struct State{ int n; unordered_set<int> used; vi seq; State(IO& io) : n(io.n){ used.insert(0); } void add(int i, int j, const IO& io){ if(i > seq.size()){ cerr << "error : " << i << " is out of range" << endl; return; } if(i == seq.size()) seq.push_back(j); else seq.insert(seq.begin()+i, j); used.insert(j); } void swap(int i, int j, const IO& io){ if(i>=seq.size()){ cerr << "seq size is " << seq.size() << " but i is " << i << endl; return; } used.erase(seq[i]); seq[i] = j; used.insert(j); } void del(int i, const IO& io){ if(i>=seq.size()){ cerr << "seq size is " << seq.size() << " but i is " << i << endl; return; } used.erase(seq[i]); seq.erase(seq.begin()+i); } void update(const IO& io){ int coin = randrange(10); if(seq.size()==0 || (coin < 3 && seq.size() < 50)){ int i = randrange(seq.size()+1); int j = randrange(n-1)+1; add(i,j,io); } else if(coin < 6 && seq.size() > 0){ int i = randrange(seq.size()); del(i,io); } else{ int i,j; i = randrange(seq.size()); j = randrange(n-1)+1; swap(i,j,io); } } double get_score(const IO& io){ vll a = io.a; vll b = io.b; for(int i=0;i<seq.size();i++){ ll ave_a = (a[0] + io.a[seq[i]])/2; ll ave_b = (b[0] + io.b[seq[i]])/2; a[0] = ave_a; b[0] = ave_b; a[seq[i]] = ave_a; b[seq[i]] = ave_b; } double diff_a = a[0]-5e17; double diff_b = b[0]-5e17; return diff_a*diff_a + diff_b*diff_b; } void get_card(const IO & io){ vll a = io.a; vll b = io.b; for(int i=0;i<seq.size();i++){ ll ave_a = (a[0] + io.a[seq[i]])/2; ll ave_b = (b[0] + io.b[seq[i]])/2; a[0] = ave_a; b[0] = ave_b; a[seq[i]] = ave_a; b[seq[i]] = ave_b; } cerr << a[0] << " " << b[0] << endl; } }; int main(){ cin.tie(nullptr); ios::sync_with_stdio(false); IO io; io.input(); State now_state(io); double now_score = now_state.get_score(io); while(get_time() - start_time < 900){ State state = now_state; state.update(io); if(chmin(now_score, state.get_score(io))){ swap(now_state, state); #ifdef LOCAL cerr << setprecision(15) << now_score << endl; #endif } } vi ans = now_state.seq; cout << ans.size() << endl; for(auto e:ans){ cout << 1 << " " << e+1 << endl; } #ifdef LOCAL now_state.get_card(io); #endif }