結果
問題 | No.5020 Averaging |
ユーザー | ゆにぽけ |
提出日時 | 2024-02-25 14:04:07 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 933 ms / 1,000 ms |
コード長 | 3,987 bytes |
コンパイル時間 | 1,928 ms |
コンパイル使用メモリ | 150,712 KB |
実行使用メモリ | 6,676 KB |
スコア | 44,313,027 |
最終ジャッジ日時 | 2024-02-25 14:05:00 |
合計ジャッジ時間 | 51,097 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge10 |
純コード判定しない問題か言語 |
(要ログイン)
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 | 932 ms
6,676 KB |
testcase_01 | AC | 909 ms
6,676 KB |
testcase_02 | AC | 926 ms
6,676 KB |
testcase_03 | AC | 907 ms
6,676 KB |
testcase_04 | AC | 907 ms
6,676 KB |
testcase_05 | AC | 930 ms
6,676 KB |
testcase_06 | AC | 907 ms
6,676 KB |
testcase_07 | AC | 907 ms
6,676 KB |
testcase_08 | AC | 912 ms
6,676 KB |
testcase_09 | AC | 906 ms
6,676 KB |
testcase_10 | AC | 930 ms
6,676 KB |
testcase_11 | AC | 906 ms
6,676 KB |
testcase_12 | AC | 930 ms
6,676 KB |
testcase_13 | AC | 906 ms
6,676 KB |
testcase_14 | AC | 933 ms
6,676 KB |
testcase_15 | AC | 907 ms
6,676 KB |
testcase_16 | AC | 931 ms
6,676 KB |
testcase_17 | AC | 906 ms
6,676 KB |
testcase_18 | AC | 930 ms
6,676 KB |
testcase_19 | AC | 906 ms
6,676 KB |
testcase_20 | AC | 910 ms
6,676 KB |
testcase_21 | AC | 910 ms
6,676 KB |
testcase_22 | AC | 930 ms
6,676 KB |
testcase_23 | AC | 907 ms
6,676 KB |
testcase_24 | AC | 914 ms
6,676 KB |
testcase_25 | AC | 905 ms
6,676 KB |
testcase_26 | AC | 930 ms
6,676 KB |
testcase_27 | AC | 906 ms
6,676 KB |
testcase_28 | AC | 909 ms
6,676 KB |
testcase_29 | AC | 930 ms
6,676 KB |
testcase_30 | AC | 907 ms
6,676 KB |
testcase_31 | AC | 931 ms
6,676 KB |
testcase_32 | AC | 906 ms
6,676 KB |
testcase_33 | AC | 932 ms
6,676 KB |
testcase_34 | AC | 907 ms
6,676 KB |
testcase_35 | AC | 906 ms
6,676 KB |
testcase_36 | AC | 929 ms
6,676 KB |
testcase_37 | AC | 906 ms
6,676 KB |
testcase_38 | AC | 931 ms
6,676 KB |
testcase_39 | AC | 906 ms
6,676 KB |
testcase_40 | AC | 931 ms
6,676 KB |
testcase_41 | AC | 907 ms
6,676 KB |
testcase_42 | AC | 931 ms
6,676 KB |
testcase_43 | AC | 931 ms
6,676 KB |
testcase_44 | AC | 921 ms
6,676 KB |
testcase_45 | AC | 906 ms
6,676 KB |
testcase_46 | AC | 930 ms
6,676 KB |
testcase_47 | AC | 906 ms
6,676 KB |
testcase_48 | AC | 908 ms
6,676 KB |
testcase_49 | AC | 930 ms
6,676 KB |
ソースコード
#include <iostream> #include <vector> #include <algorithm> #include <array> #include <iterator> #include <string> #include <cctype> #include <cstring> #include <cstdlib> #include <cassert> #include <cmath> #include <ctime> #include <iomanip> #include <numeric> #include <stack> #include <queue> #include <map> #include <unordered_map> #include <set> #include <unordered_set> #include <bitset> #include <random> #include <utility> #include <functional> using namespace std; void Main() { int start_time = clock(); //input int N; cin >> N; vector<long long> A(N),B(N); for(int i = 0;i < N;i++) { cin >> A[i] >> B[i]; } const long long M = (long long)5e17; const int TIME_LIMIT = 0.9 * CLOCKS_PER_SEC; mt19937_64 rng{(unsigned)time(nullptr)}; vector<pair<int,int>> ans; long double score = 0; int sz = 50; int half = 25; int loop = 0; long double start_temp = 10,end_temp = 50; vector<vector<int>> G(1 << 2); vector<int> T(N); for(int i = 0;i < N;i++) { int S = 0; if(A[i] > M) { S |= 1; } if(B[i] > M) { S |= 2; } if(i > 0) { G[S].push_back(i); } T[i] = S; } auto diff = [&M](long long a,long long b) -> long long { return max(abs(a - M),abs(b - M)); }; { vector<long long> C = A,D = B; for(int i = 0;i < half;i++) { while(true) { int u = rng() % (N - 1) + 2; /* int v = rng() % (N - 1) + 2; */ int U = T[u] ^ 3; int v = G[U][rng() % G[U].size()] + 1; if(u == v) { continue; } { long long x = (C[u - 1] + C[v - 1]) / 2; C[u - 1] = C[v - 1] = x; } { long long x = (D[u - 1] + D[v - 1]) / 2; D[u - 1] = D[v - 1] = x; } ans.push_back(make_pair(u,v)); break; } } vector<int> ord(N); iota(ord.begin(),ord.end(),0); sort(ord.begin() + 1,ord.end(),[&](int i,int j) { return diff(C[i],D[i]) > diff(C[j],D[j]); }); for(int i = N - (sz - half);i < N;i++) { int id = ord[i]; { long long x = (C[0] + C[id]) / 2; C[0] = C[id] = x; } { long long x = (D[0] + D[id]) / 2; D[0] = D[id] = x; } ans.push_back(make_pair(1,id + 1)); } score = 2e6 - 1e5 * log10(diff(C[0],D[0]) + 1); } while(clock() - start_time < TIME_LIMIT) { loop++; vector<pair<int,int>> n_ans(ans.begin(),ans.begin() + half); { int id = rng() % half; while(true) { int u = rng() % (N - 1) + 2; /* int v = rng() % (N - 1) + 2; */ int U = T[u] ^ 3; int v = G[U][rng() % G[U].size()] + 1; if(u == v) { continue; } n_ans[id] = make_pair(u,v); break; } } long double n_score = 0; vector<long long> C = A,D = B; for(const auto &[u,v] : n_ans) { { long long x = (C[u - 1] + C[v - 1]) / 2; C[u - 1] = C[v - 1] = x; } { long long x = (D[u - 1] + D[v - 1]) / 2; D[u - 1] = D[v - 1] = x; } } vector<int> ord(N); iota(ord.begin(),ord.end(),0); sort(ord.begin() + 1,ord.end(),[&](int i,int j) { return diff(C[i],D[i]) > diff(C[j],D[j]); }); for(int i = N - (sz - half);i < N;i++) { int id = ord[i]; { long long x = (C[0] + C[id]) / 2; C[0] = C[id] = x; } { long long x = (D[0] + D[id]) / 2; D[0] = D[id] = x; } n_ans.push_back(make_pair(1,id + 1)); } n_score = 2e6 - 1e5 * log10(diff(C[0],D[0]) + 1); long double temp = start_temp + (end_temp - start_temp) * (clock() - start_time) / TIME_LIMIT; long double prob = exp((n_score - score) / temp); if(prob >= (long double)(rng() % M) / M) { swap(ans,n_ans); score = n_score; } /* if(n_score > score) */ /* { */ /* swap(ans,n_ans); */ /* score = n_score; */ /* } */ } //output cout << ans.size() << "\n"; for(int i = 0;i < (int)ans.size();i++) { cout << ans[i].first << " " << ans[i].second << "\n"; } cerr << "Score : " << score << "\n"; cerr << "Loop : " << loop << "\n"; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int tt = 1; /* cin >> tt; */ while(tt--) Main(); }