Submission #371078

#TimeUsernameProblemLanguageResultExecution timeMemory
371078Atill83Poklon (COCI17_poklon7)C++14
90 / 120
861 ms262148 KiB
#include <bits/stdc++.h> #define ff first #define ss second #define endl '\n' using namespace std; const long long INF = (long long) 1e18; const int mod = (int) 1e9+7; const int MAXN = (int) 2e6+5; typedef long long ll; typedef unsigned long long ull; typedef pair<int,int> pii; typedef pair<ll,ll> pll; ll n; int l[MAXN], r[MAXN]; int Gidx = 0; string idx[MAXN]; int len[MAXN]; vector<int> hsh[MAXN]; int do_it(int v){ assert(Gidx <= MAXN); if(v < 0){ int cur = -v, pow = 1; while(cur){ idx[Gidx] += (char)('0' + cur % 2); hsh[Gidx].push_back(((hsh[Gidx].empty() ? 0 : hsh[Gidx].back()) + pow * (cur % 2) % mod) % mod); pow = pow * 2 % mod; cur /= 2; } reverse(idx[Gidx].begin(), idx[Gidx].end()); reverse(hsh[Gidx].begin(), hsh[Gidx].end()); len[Gidx] = hsh[Gidx].size(); return Gidx++; } int left = do_it(l[v]), right = do_it(r[v]); int winner = -1; if(len[left] != len[right]){ winner = (len[left] > len[right] ? left : right); }else{ if(idx[left].size() != idx[right].size()){ return (idx[left].size() > idx[right].size() ? left : right); } int yer = -1; for(yer = 0; yer < idx[left].size(); yer++){ if(idx[left][yer] != idx[right][yer]) break; } if(yer == idx[left].size() || idx[left][yer] == '1') winner = left; else winner = right; } len[winner]++; return winner; } int main(){ ios_base::sync_with_stdio(false); cin.tie(nullptr);cout.tie(nullptr); #ifdef Local freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin); freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout); #endif cin>>n; for(int i = 1; i <= n; i++) cin>>l[i]>>r[i]; int ans = do_it(1); string & cev = idx[ans]; while(cev.size() != len[ans]) cev += '0'; cerr<<ans<<endl; cout<<cev<<endl; #ifdef Local cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds "; #endif }

Compilation message (stderr)

poklon.cpp: In function 'int do_it(int)':
poklon.cpp:46:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(yer = 0; yer < idx[left].size(); yer++){
      |                      ~~~~^~~~~~~~~~~~~~~~~~
poklon.cpp:50:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         if(yer == idx[left].size() || idx[left][yer] == '1')
      |            ~~~~^~~~~~~~~~~~~~~~~~~
poklon.cpp: In function 'int main()':
poklon.cpp:77:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   77 |     while(cev.size() != len[ans])
      |           ~~~~~~~~~~~^~~~~~~~~~~
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