Submission #362678

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
362678	2021-02-04 04:45:34	hoaphat1	Cake 3 (JOI19_cake3)	C++17	100 / 100	1499 ms	38500 KiB

cake3

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#include<bits/stdc++.h>
 
using namespace std;
 
int main() {
  #define qwer "test"
  if (fopen(qwer".inp","r")) freopen(qwer".inp","r",stdin),freopen(qwer".out","w",stdout);
  ios::sync_with_stdio(0);
  cin.tie(0);
  int n, m;
  cin >> n >> m;
  vector<pair<int, int>> a(n);
  for (int i = 0; i < n; i++) cin >> a[i].second >> a[i].first;
  sort(a.begin(), a.end());
  /*
    k1 k2 ... km -> v - 2 * (c km - c k1)
    i >= i-1
  */
  long long ans = -1e18;
  long long now = 0;
  int L = 0, R = -1;
  vector<int> kt(n, 0);
  priority_queue<pair<int, int>, vector<pair<int,int>> , greater<pair<int, int>>> pq;
  priority_queue<pair<int, int>> smaller;
  int sz = 0;
  auto add = [&](int id) {
    int v = a[id].second;
    pq.emplace(v, id);
    now += v;
    kt[id] = 1;
 
 
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Compilation message (stderr)

cake3.cpp: In lambda function:
cake3.cpp:70:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   70 |    int mid = l + r >> 1;
      |              ~~^~~
cake3.cpp: In function 'int main()':
cake3.cpp:7:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
    7 |  if (fopen(qwer".inp","r")) freopen(qwer".inp","r",stdin),freopen(qwer".out","w",stdout);
      |                             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
cake3.cpp:7:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
    7 |  if (fopen(qwer".inp","r")) freopen(qwer".inp","r",stdin),freopen(qwer".out","w",stdout);
      |                                                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 76 / 76