Submission #146587

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
146587	2019-08-24 15:21:24	gs14004	Safety (NOI18_safety)	C++17	100 / 100	82 ms	6292 KiB

safety

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#include <bits/stdc++.h>
using namespace std;
using lint = long long;
using pi = pair<int, int>;
const int MAXN = 250005;
int n, h, x[MAXN], y[MAXN];
struct pque{
  bool neg;
  lint offset = 0;
  priority_queue<lint> pq;
  void push(lint x){
    if(neg) x = -x;
    pq.push(x - offset);
  }
  lint top(){
    lint x = pq.top() + offset;
    if(neg) x = -x;
    return x;
  }
  void pop(){
    pq.pop();
  }
  void add_offset(lint x){
    if(neg) x = -x;
    offset += x;
  }
}pql, pqr;
 
 
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Compilation message (stderr)

safety.cpp: In function 'int main()':
safety.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&h);
  ~~~~~^~~~~~~~~~~~~~~
safety.cpp:36:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x[i]);
   ~~~~~^~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 4 / 4
• Subtask 3: 9 / 9
• Subtask 4: 5 / 5
• Subtask 5: 6 / 6
• Subtask 6: 11 / 11
• Subtask 7: 11 / 11
• Subtask 8: 22 / 22
• Subtask 9: 29 / 29