Submission #914173

#TimeUsernameProblemLanguageResultExecution timeMemory
914173AbitoColors (BOI20_colors)C++14
9 / 100
1 ms600 KiB
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #define F first #define S second #define pb push_back #define ppb pop_back #define ep insert //#define endl '\n' #define elif else if #define pow pwr #define sqrt sqrtt #define int long long #define ll long long #define y1 YONE #define free freeee #define lcm llcm /* ⠄⠄⠄⠄⢠⣿⣿⣿⣿⣿⢻⣿⣿⣿⣿⣿⣿⣿⣿⣯⢻⣿⣿⣿⣿⣆⠄⠄⠄ ⠄⠄⣼⢀⣿⣿⣿⣿⣏⡏⠄⠹⣿⣿⣿⣿⣿⣿⣿⣿⣧⢻⣿⣿⣿⣿⡆⠄⠄ ⠄⠄⡟⣼⣿⣿⣿⣿⣿⠄⠄⠄⠈⠻⣿⣿⣿⣿⣿⣿⣿⣇⢻⣿⣿⣿⣿⠄⠄ ⠄⢰⠃⣿⣿⠿⣿⣿⣿⠄⠄⠄⠄⠄⠄⠙⠿⣿⣿⣿⣿⣿⠄⢿⣿⣿⣿⡄⠄ ⠄⢸⢠⣿⣿⣧⡙⣿⣿⡆⠄⠄⠄⠄⠄⠄⠄⠈⠛⢿⣿⣿⡇⠸⣿⡿⣸⡇⠄ ⠄⠈⡆⣿⣿⣿⣿⣦⡙⠳⠄⠄⠄⠄⠄⠄⢀⣠⣤⣀⣈⠙⠃⠄⠿⢇⣿⡇⠄ ⠄⠄⡇⢿⣿⣿⣿⣿⡇⠄⠄⠄⠄⠄⣠⣶⣿⣿⣿⣿⣿⣿⣷⣆⡀⣼⣿⡇⠄ ⠄⠄⢹⡘⣿⣿⣿⢿⣷⡀⠄⢀⣴⣾⣟⠉⠉⠉⠉⣽⣿⣿⣿⣿⠇⢹⣿⠃⠄ ⠄⠄⠄⢷⡘⢿⣿⣎⢻⣷⠰⣿⣿⣿⣿⣦⣀⣀⣴⣿⣿⣿⠟⢫⡾⢸⡟⠄. ⠄⠄⠄⠄⠻⣦⡙⠿⣧⠙⢷⠙⠻⠿⢿⡿⠿⠿⠛⠋⠉⠄⠂⠘⠁⠞⠄⠄⠄ ⠄⠄⠄⠄⠄⠈⠙⠑⣠⣤⣴⡖⠄⠿⣋⣉⣉⡁⠄⢾⣦⠄⠄⠄⠄⠄⠄⠄⠄ */ typedef unsigned long long ull; using namespace std; int a[64],n,c=1; int32_t main(){ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL); cin>>n;; set<int> s;bool h; cout<<"? 1"<<endl;cin>>h; for (int i=2;i<=n;i++) s.ep(i); int x=n-1,last=1; for (int i=1;i<n;i++){ //cout<<x<<endl; if (s.count(last+x)) cout<<"? "<<last+x<<endl,s.erase(last+x),last+=x; else cout<<"? "<<last-x<<endl,s.erase(last-x),last-=x; cin>>h; if (!h) {c=x+1;break;} else x--; }cout<<"= "<<c<<endl; return 0; }
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