#include <bits/stdc++.h> #include "shortcut.h" using namespace std; #define ll long long #define pll pair<ll,ll> #define pb push_back long long find_shortcut(int n, std::vector<int> L, std::vector<int> D, int C) { ll l[n],d[n]; for(int i=0;i<n-1;i++)l[i]=L[i]; l[n-1]=0; for(int i=0;i<n;i++)d[i]=D[i]; ll c=C; ll c1[n],c2[n]; c1[0]=d[0]; for(int i=1;i<n;i++)c1[i]=max(c1[i-1]+l[i-1],d[i]); c2[n-1]=d[n-1]; for(int i=n-2;i>-1;i--)c2[i]=max(c2[i+1]+l[i],d[i]); ll ans=1e18; for(int x=0;x<n;x++){ for(int y=x+1;y<n;y++){ ll dx=d[x],dy=d[y],ly=l[y]; d[x]=c1[x]; d[y]=c2[y]; l[y]=c; ll s=0; for(int i=x;i<=y;i++)s+=l[i]; s/=2; multiset<ll> ms; ms.insert(d[x]); ll mx=0; for(ll i=x,j=x,pi=0,pj=0;i<=y;i++){ while(pj+l[j]-pi<=s){ pj+=l[j]; j++; if(j>y)j=x; ms.insert(pj+d[j]); } ms.erase(ms.find(pi+d[i])); if(!ms.empty())mx=max(mx,*ms.rbegin()-pi+d[i]); pi+=l[i]; } ans=min(ans,mx); d[x]=dx; d[y]=dy; l[y]=ly; } } return ans; }

shortcut.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
shortcut_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~