Submission #988550

#TimeUsernameProblemLanguageResultExecution timeMemory
988550cnn008Rarest Insects (IOI22_insects)C++17
Compilation error
0 ms0 KiB
#include "bits/stdc++.h" using namespace std; #include "insects.h" #ifdef N_N_C #include "debug.h" #else #define cebug(...) "Arya" #endif #define ll long long mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); int rand(int l, int r){ assert(l<=r); return uniform_int_distribution<int> (l,r)(rng); } const int N=1e5+5; const int mod=1e9+7; int min_cardinality(int n){ set <int> s; vector <int> nw; // vector <int> p(n); // iota(p.begin(),p.end(),0); // shuffle(p.begin(),p.end(),rng); map <int,set<int>> mp; int cad; auto add = [&](int i) -> void{ s.insert(i); move_inside(i); }; auto del = [&](int i) -> void{ s.erase(i); move_outside(i); }; auto clear = [&]() -> void{ auto _s=s; for(auto i:_s) del(i); }; auto check = [&](int k) -> bool{ nw.clear(); auto op=*mp.lower_bound(k); for(auto i:op.second){ if(s.find(i)!=s.end()) continue; add(i); if(press_button()>k) del(i); else nw.push_back(i); } mp[mid]=s; return (int)s.size()>=cad*k; }; for(int i=0; i<n; i++){ add(i); if(press_button()>1) del(i); } cad=(int)s.size(); if(cad<=9){ vector <int> vis(n,0); int type=0; for(int i=0; i<n; i++){ if(!vis[i]){ vis[i]=++type; move_inside(i); for(int j=i+1; j<n; j++){ move_inside(j); int val=press_button(); if(val==2) vis[j]=type; move_outside(j); } move_outside(i); } } map <int,int> brute; for(int i=0; i<n; i++) brute[vis[i]]++; int ans=INT_MAX; for(auto [x,y]:brute) ans=min(ans,y); return ans; } mp[1]=s; for(int i=0; i<n; i++) mp[n].insert(i); int l=2,r=n/cad,ans=1; while(l<=r){ int mid=(l+r)/2; if(check(mid)){ ans=mid; l=mid+1; }else{ r=mid-1; for(auto i:nw) del(i); } } return ans; } /** /\_/\ * (= ._.) * / >💖 \>💕 **/

Compilation message (stderr)

insects.cpp:97:9: warning: "/*" within comment [-Wcomment]
   97 | /**  /\_/\
      |          
insects.cpp: In lambda function:
insects.cpp:52:6: error: 'mid' was not declared in this scope; did you mean 'mod'?
   52 |   mp[mid]=s;
      |      ^~~
      |      mod