Submission #1040699

#TimeUsernameProblemLanguageResultExecution timeMemory
1040699LaMatematica14Detecting Molecules (IOI16_molecules)C++17
100 / 100
77 ms18420 KiB
#include <bits/stdc++.h> using namespace std; vector<int> fine(multimap<long long, int> a) { vector<int> r(a.size()); int n = 0; for(pair<int, int> i : a) r[n++] = i.second; return r; } vector<int> find_subset(int l, int u, vector<int> w) { vector<pair<long long, int>> wn(w.size()); for (int i = 0; i < w.size(); i++) wn[i] = {w[i], i}; sort(wn.begin(), wn.end()); multimap<long long, int> in; long long tot = 0, larg = 0; for (int i = 0; i < wn.size() && tot+wn[i].first <= u; i++) { tot += wn[i].first; in.insert(wn[i]); if (tot >= l) return fine(in); larg = i; } for (int i = larg+1; i < wn.size() && tot < l; i++) { if (in.lower_bound(tot+wn[i].first-(long long)u) != in.end()) { long long aus = tot; tot -= (*in.lower_bound(tot+wn[i].first-(long long)u)).first; tot += wn[i].first; in.erase(in.lower_bound(aus+wn[i].first-(long long)u)); in.insert(wn[i]); } if (tot >= l) return fine(in); } vector<int> a(0); return a; }

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for (int i = 0; i < w.size(); i++) wn[i] = {w[i], i};
      |                     ~~^~~~~~~~~~
molecules.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for (int i = 0; i < wn.size() && tot+wn[i].first <= u; i++) {
      |                     ~~^~~~~~~~~~~
molecules.cpp:21:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i = larg+1; i < wn.size() && tot < l; i++) {
      |                          ~~^~~~~~~~~~~
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