Submission #997398

#TimeUsernameProblemLanguageResultExecution timeMemory
99739812345678Minerals (JOI19_minerals)C++17
85 / 100
29 ms3056 KiB
#include "minerals.h" #include <bits/stdc++.h> using namespace std; const int nx=5e4+5; mt19937 rng(time(0)); int p, c; vector<int> l, r; int update(int x) { p=Query(x); swap(c, p); return c!=p; } void solve(vector<int> &l, vector<int> &r, int t) { int sz=l.size(); if (sz==1) return Answer(l[0], r[0]), void(); int md=(sz-1)/2; vector<int> l1, l2, r1, r2; for (int i=0; i<=md; i++) l1.push_back(l[i]), update(l[i]); for (int i=md+1; i<sz; i++) r1.push_back(l[i]); for (int i=0; i<sz; i++) { if (l2.size()==l1.size()) r2.push_back(r[i]); else if (r2.size()==r1.size()) l2.push_back(r[i]); else if (update(r[i])==t) l2.push_back(r[i]); else r2.push_back(r[i]); } solve(l1, l2, !t); solve(r1, r2, t); } void Solve(int N) { for (int i=1; i<=2*N; i++) { if (update(i)) l.push_back(i); else r.push_back(i); } solve(l, r, 1); } /* 5 4 7 1 2 8 3 6 10 9 5 */
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