제출 #1303567

#제출 시각아이디문제언어결과실행 시간메모리
1303567NonozeXylophone (JOI18_xylophone)C++20
47 / 100
26 ms440 KiB
#include "xylophone.h" /* * Author: Nonoze * Created: Wednesday 17/12/2025 */ #include <bits/stdc++.h> using namespace std; #ifndef DEBUG #define dbg(...) #endif // #define cout cerr << "OUT: " #define endl '\n' #define endlfl '\n' << flush #define quit(x) return (void)(cout << x << endl) template<typename T> void read(T& x) { cin >> x; } template<typename T1, typename T2> void read(pair<T1, T2>& p) { read(p.first), read(p.second); } template<typename T> void read(vector<T>& v) { for (auto& x : v) read(x); } template<typename T1, typename T2> void read(T1& x, T2& y) { read(x), read(y); } template<typename T1, typename T2, typename T3> void read(T1& x, T2& y, T3& z) { read(x), read(y), read(z); } template<typename T1, typename T2, typename T3, typename T4> void read(T1& x, T2& y, T3& z, T4& zz) { read(x), read(y), read(z), read(zz); } template<typename T> void print(vector<T>& v) { for (auto& x : v) cout << x << ' '; cout << endl; } #define sz(x) (int)(x.size()) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define make_unique(v) sort(all(v)), v.erase(unique(all(v)), (v).end()) #define pb push_back #define mp(a, b) make_pair(a, b) #define fi first #define se second #define cmin(a, b) a = min(a, b) #define cmax(a, b) a = max(a, b) #define YES cout << "YES" << endl #define NO cout << "NO" << endl #define QYES quit("YES") #define QNO quit("NO") #define double long double const int inf = numeric_limits<int>::max() / 4; const int MOD = 1e9+7, LOG=20; static int A[5001]; int que(int s, int t) { return query(min(s, t), max(s, t)); } void calc(int prec, int cur, int val1, int val2) { int inc=1; if (val1>val2) inc=-1; val1+=inc; int pos=val1; while (pos!=val2) { pos+=inc; int val=que(pos, pos-2*inc); if (prec<cur) { if (val==cur-prec) { val=que(pos, pos-inc); A[pos]=cur-val; cur=A[pos], prec=A[pos-inc]; } else if (que(pos, pos-inc)==val) { A[pos]=cur-val; cur=A[pos], prec=A[pos-inc]; } else { A[pos]=prec+val; cur=A[pos], prec=A[pos-inc]; } } else { if (val==prec-cur) { val=que(pos, pos-inc); A[pos]=cur+val; cur=A[pos], prec=A[pos-inc]; } else if (que(pos, pos-inc)==val) { A[pos]=cur+val; cur=A[pos], prec=A[pos-inc]; } else { A[pos]=prec-val; cur=A[pos], prec=A[pos-inc]; } } } } void solve(int N) { int l=2, r=N, emplN=N; while (l<=r) { int m=(l+r)/2; int val=query(1, m); if (val==N-1) emplN=m, r=m-1; else l=m+1; } l=1, r=emplN-1; int empl1=1; while (l<=r) { int m=(l+r)/2; int val=query(m, emplN); if (val==N-1) empl1=m, l=m+1; else r=m-1; } A[emplN]=N, A[empl1]=1; if (empl1>1) { int prec=1, cur=query(empl1-1, empl1); A[empl1-1]=cur+1; calc(prec, cur+1, empl1, 1); } if (empl1<emplN-1) { int prec=1, cur=query(empl1, empl1+1); A[empl1+1]=cur+1; calc(prec, cur+1, empl1, emplN); } if (emplN<N) { int prec=N, cur=query(emplN, emplN+1); A[emplN+1]=N-cur; calc(prec, N-cur, emplN, N); } for (int i=1; i<=N; i++) { answer(i, A[i]); } }
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