Submission #802692

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
802692	2023-08-02 13:26:56	acatmeowmeow	Let's Win the Election (JOI22_ho_t3)	C++11	10 / 100	5 ms	340 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
#define int long long 
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n, K;
  cin >> n >> K;
  vector<int> a(n + 5), b(n + 5), index;
  for (int i = 1; i <= n; i++) cin >> a[i] >> b[i];
  vector<int> arr(a);
  sort(arr.begin() + 1, arr.begin() + n + 1);
  double ans = 0;
  for (int i = 1; i <= K; i++) ans += (double)arr[i];
  for (int i = 1; i <= n; i++) if (b[i] != -1) index.push_back(i);
  sort(index.begin(), index.end(), [&](int x, int y){ return b[x] < b[y]; });
  vector<int> mark(n + 5);
  double prefix = 0;
  int cnt = 0;
  for (auto&i : index) {
    mark[i] = true;
    cnt++;
    prefix += (double)b[i]/cnt;
    double res = prefix;
    vector<int> rem;
    for (int j = 1; j <= n; j++) if (!mark[j]) rem.push_back(j);
    sort(rem.begin(), rem.end(), [&](int x, int y) { return a[x] < a[y]; });
 
 
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:31:32: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |   for (int j = 0, cur = cnt; j < rem.size() && cur < K; j++, cur++) res += (double)a[rem[j]]/(cnt + 1);
      |                              ~~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 33
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23