제출 #1197560

#제출 시각아이디문제언어결과실행 시간메모리
1197560shadow_samiThe Potion of Great Power (CEOI20_potion)C++20
56 / 100
3080 ms48780 KiB
#include<bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; using namespace std; typedef long long int ll; typedef vector<ll> vi; typedef vector<vector<ll>> vvi; typedef pair<ll,ll> pi; typedef map<ll,ll> mi; typedef long double ld; typedef vector<ld> vd; typedef vector<vector<ld>> vvd; typedef pair<ld,ld> pd; #define ff first #define ss second #define srt(a) sort(a.begin(),a.end()); #define fip(k, n) for (ll i = k; i < n; i++) #define fjp(k, n) for (ll j = k; j < n; j++) #define fin(k, n) for (ll i = k; i >= n; i--) #define fjn(k, n) for (ll j = k; j >= n; j--) #define fp(k, n, m) for (ll k = n; k < m; k++) #define fn(k, n, m) for (ll k = n; k >= m; k--) #define ordered_set tree<pi, null_type,less< pi >, rb_tree_tag,tree_order_statistics_node_update> #define totalOne(n) __builtin_popcount(n) #define backZero(n) __builtin_ctzll(n) #define frontZero(n) __builtin_clzll(n) #define fx(k) for ( auto x : k ) #define test ll t;cin >> t;while (t--) #define nli "\n" // ==========================(debug)============================================================================================== // #ifdef SAMI #define debug(x) cerr<<#x;cerr<<" ";_printn(x);cerr<<nli; #define debg() cerr<<nli; #else #define debug(x) #define debg() #endif void _printn(ll x){ cerr<<x<<" "; } void _printn(int x){ cerr<<x<<" "; } void _printn(ld x){ cerr<<x<<" "; } void _printn(double x){ cerr<<x<<" "; } void _printn(string x){ cerr<<x<<" "; } void _printn(char x){ cerr<<x<<" "; } void _printn(bool x){ cerr<<x<<" "; } template<class T,class V>void _printn(pair<T,V> vv); template<class T> void _printn(vector<T> vv); template<class T> void _printn(set<T> vv); template<class T,class V> void _printn(map<T,V> vv); template<class T> void _printn(multiset<T> vv); template<class T,class V>void _printn(pair<T,V> vv){ cerr<<"( ";_printn(vv.ff);cerr<<",";_printn(vv.ss);cerr<<")";} template<class T> void _printn(vector<T> vv){ cerr<<"[ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"]"; }; template<class T> void _printn(set<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; }; template<class T> void _printn(multiset<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; }; template<class T,class V> void _printn(map<T,V> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; }; // ==========================(debug)============================================================================================== // ll n,m,tp,tp2,res,cnt,sum,tptp,ans; const ll mx = 1e5+5; const ll mod = 1e9+7; // ==========================(MOD)=============================================================================================== // ll mod_add(ll aa,ll bb){ return ((aa%mod)+(bb%mod))%mod; } ll mod_minus(ll aa,ll bb){ return (((aa%mod)-(bb%mod))+10*mod)%mod; } ll mod_mul(ll aa,ll bb){ return ((aa%mod)*(bb%mod))%mod; } ll mod_power(ll aa,ll bb){ aa%=mod; ll empowered = 1; bb%=mod-1; while(bb > 0){ if(bb & 1) empowered = mod_mul(empowered,aa); bb = bb >> 1; aa = mod_mul(aa,aa); } return empowered; } ll mod_divi(ll aa,ll bb){ aa=mod_mul(aa,mod_power(bb,mod-2)); return aa; } // ==========================(MOD)=============================================================================================== // bool f = false; ll sr,de; ll a[mx]; vi v,v2; vector<pi> adj[mx]; set<ll> st; ll pt = 0; ll limit = 29; vector<pi> lis[mx]; vector<vi> mem; ll l,r,mid; ll get(ll i,ll q){ l = 0; r = lis[i].size() - 1; pt = -1; while(l<=r){ mid = l + (r-l) / 2; if(lis[i][mid].ff <= q){ pt = mid; l = mid + 1; }else r = mid - 1; } return pt; } ll get2(ll i,ll q){ l = 0; r = adj[i].size() - 1; pt = -1; while(l<=r){ mid = l + (r-l) / 2; if(adj[i][mid].ss >= q){ pt = mid; r = mid - 1; }else l = mid + 1; } return pt; } void init(int N, int D, int H[]) { n = N; fip(0,N) a[i] = H[i]; return; } void curseChanges(int U, int A[], int B[]) { fip(0,n+1) adj[i].clear(); fip(0,U){ sr = A[i]; de = B[i]; adj[sr].push_back({de,i+1}); adj[de].push_back({sr,i+1}); } tptp = 0; v.clear(); mem.push_back(v); tptp++; fip(0,n){ cnt = 0; lis[i].push_back({0,0}); cnt++; st.clear(); fx(adj[i]){ if(st.find(x.ff)==st.end()) st.insert(x.ff); else st.erase(st.find(x.ff)); if(cnt%limit){ lis[i].push_back({x.ss,-1}); }else{ lis[i].push_back({x.ss,tptp}); v.clear(); fx(st)v.push_back(x); mem.push_back(v); tptp++; } cnt++; } } return; } int question(int xx, int yy, int V) { ans = 1e9; v.clear(); v2.clear(); tp = get(xx,V); while(tp!=-1 && lis[xx][tp].ss==-1) tp--; res = (tp==-1?0:lis[xx][tp].ss); st.clear(); fx(mem[res]) st.insert(x); res = get2(xx,lis[xx][tp].ff+1); if(res!=-1){ fip(res,adj[xx].size()){ if(adj[xx][i].ss > V) break; if(st.find(adj[xx][i].ff)==st.end()) st.insert(adj[xx][i].ff); else st.erase(st.find(adj[xx][i].ff)); } } fx(st) v.push_back(a[x]); tp2 = get(yy,V); while(tp2!=-1 && lis[yy][tp2].ss==-1) tp2--; res = (tp2==-1?0:lis[yy][tp2].ss); st.clear(); fx(mem[res]) st.insert(x); res = get2(yy,lis[yy][tp2].ff+1); if(res!=-1){ fip(res,adj[yy].size()){ if(adj[yy][i].ss > V) break; if(st.find(adj[yy][i].ff)==st.end()) st.insert(adj[yy][i].ff); else st.erase(st.find(adj[yy][i].ff)); } } fx(st) v2.push_back(a[x]); srt(v); srt(v2); ans = 1e9; if(!v.size() || !v2.size())return ans; tp = 0; tp2 = 0; while(tp<(ll)v.size()) { while(tp2+1<(ll)v2.size() && v2[tp2+1] <= v[tp]) tp2++; ans = min(ans,abs(v[tp]-v2[tp2])); if(tp2+1<(ll)v2.size()) ans = min(ans,abs(v[tp]-v2[tp2+1])); tp++; } return ((int)ans); } #ifdef SAMI int main(){ ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0); mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); #ifdef SAMI freopen("input1.txt", "r", stdin); freopen("output1.txt", "w", stdout); freopen("error1.txt", "w", stderr); #endif // ONLINE_JUDGE int N, D, U, Q; std::cin >> N >> D >> U >> Q; int *F = new int[N]; for (int i=0; i<N; i++) std::cin >> F[i]; init(N, D, F); int *A = new int[U], *B = new int[U]; for (int i=0; i<U; i++) { std::cin >> A[i] >> B[i]; } curseChanges(U, A, B); bool correct = true; for (int i=0; i<Q; i++) { int X,Y,V,CorrectAnswer; /* std::cin >> X >> Y >> V >> CorrectAnswer; int YourAnswer = question(X,Y,V); if (YourAnswer != CorrectAnswer) { std::cout << "WA! Question: " << i << " (X=" << X << ", Y=" << Y << ", V=" << V << ") " << "Your answer: " << YourAnswer << " Correct Answer: " << CorrectAnswer << std::endl; correct = false; } else { std::cerr << YourAnswer << " - OK" << std::endl; } } if (correct) { std::cout << "Correct." << std::endl; } else std::cout << "Incorrect." << std::endl; */ std::cin >> X >> Y >> V; int YourAnswer = question(X,Y,V); cout<<YourAnswer<<nli; } cerr << "Time elapsed: " << setprecision(6) << 1000.0 * clock() / CLOCKS_PER_SEC << "ms\n"; return 0; } #endif
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