Submission #1070851

#TimeUsernameProblemLanguageResultExecution timeMemory
1070851JoenPoenManRarest Insects (IOI22_insects)C++17
0 / 100
271 ms704 KiB
#include "insects.h" #include <bits/stdc++.h> using namespace std; int min_cardinality(int n) { int k = 0; vector<int> S; for (int i = 0; i< n; i++) { move_inside(i); if (press_button() == 2) { move_outside(i); } else S.push_back(i); } k = S.size(); int _n = n, y = 0; vector<bool> active(n, 1); while (_n > 8) { int x = (_n+2*k-1)/(2*k); for (int i : S) move_outside(i); S.clear(); for (int i = 0; i< n; i++) if (active[i]) { move_inside(i); if (press_button() == x+1) { move_outside(i); } else S.push_back(i); } if (S.size() < x*k) { active.assign(n, 0); _n = 0; for (int i : S) active[i] = 1, _n++; } else { for (int i : S) { _n -= active[i]; active[i] = 0; } y += x; } } int l = 0, h = _n; while (l < h) { int x = (l+h+1)/2; for (int i : S) move_outside(i); S.clear(); for (int i = 0; i< n; i++) if (active[i]) { move_inside(i); if (press_button() == x+1) { move_outside(i); } else S.push_back(i); } if (S.size() < x*k) { h = x-1; } else { l = x; } } return y+l; }

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:34:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   34 |       if (S.size() < x*k) {
      |           ~~~~~~~~~^~~~~
insects.cpp:60:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   60 |       if (S.size() < x*k) {
      |           ~~~~~~~~~^~~~~
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