Submission #369271

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
369271	2021-02-21 05:25:44	Berted	Feast (NOI19_feast)	C++17	100 / 100	905 ms	15588 KiB

feast

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#include <iostream>
#include <queue>
#include <set>
#define ll long long
#define pii pair<int,int>
#define fst first
#define snd second
#define ppp pair<pair<ll,int>,pii>
using namespace std;
int n,k,l=-1;ll ar[300001]={},to=0;set<pii> s;
priority_queue<ppp> pq;
int main()
{
  ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
  cin>>n>>k;
  for (int i=1;i<=n;i++) 
  {
    cin>>ar[i];
    if (ar[i]>=0)
    {
      if (l==-1) {l = i;}
    }
    else
    {
      if (l!=-1) {to+=ar[i-1] - ar[l-1];s.insert({l,i-1});l=-1;}
    }
    ar[i] += ar[i-1];
  }
  if (l!=-1) {s.insert({l,n});to+=ar[n] - ar[l-1];}
  l = -1;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

feast.cpp: In function 'int main()':
feast.cpp:40:17: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |  while (s.size()>k)
      |         ~~~~~~~~^~

• Subtask 1: 4 / 4
• Subtask 2: 8 / 8
• Subtask 3: 18 / 18
• Subtask 4: 10 / 10
• Subtask 5: 11 / 11
• Subtask 6: 20 / 20
• Subtask 7: 29 / 29