Submission #1144086

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1144086	2025-02-02 11:28:04	nikolashami	Feast (NOI19_feast)	C++20	100 / 100	143 ms	12180 KiB

feast

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#include<bits/stdc++.h>
using namespace std;
using ll=long long;
#define mp make_pair
#define pr pair<ll,ll>
#define fi first
#define se second
const int N=3e5+4;
pr f[N][2];
ll a[N],n,k;
pr chk(ll x){
  f[0][0]={0,0};
  f[0][1]={-(ll)4e15,-(ll)4e15};
  for(int i=1;i<=n;++i){
    f[i][1]=max(mp(f[i-1][1].fi+a[i],f[i-1][1].se),mp(f[i-1][0].fi+a[i]-x,f[i-1][0].se+1));
    f[i][0]=max((pair<ll,ll>)f[i-1][0],(pair<ll,ll>)f[i-1][1]);
  }
  return(max({f[n][0],f[n][1]}));
}
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    
    cin>>n>>k;
    for(int i=1;i<=n;++i)
      cin>>a[i];
 
 
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• 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