Submission #315336

#	Time	Username	Problem	Language	Result	Execution time	Memory
315336		Dymo	Just Long Neckties (JOI20_ho_t1)	C++14	100 / 100	109 ms	15608 KiB

ho_t1

#include<bits/stdc++.h>

using namespace std;


#define pb	push_back
#define ll long long
#define pll pair<ll,ll>
#define ff first
#define ss second
#define endl "\n"
const ll maxn=5e5+50;
const ll mod =1e9+7;
const ll base=113;
pll a[maxn];
ll l[maxn];
ll r[maxn];
ll b[maxn];
ll ans[maxn];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    if (fopen("GIDDY.inp", "r"))
    {
        freopen("GIDDY.inp", "r", stdin);
        freopen("GIDDY.out", "w", stdout) ;
    }
    ll n;
     cin>>n ;
     for (int i=1;i<=n+1;i++)
     {
         cin>>a[i].ff;
         a[i].ss=i;
     }
     sort(a+1,a+n+2);
    /* for (int i=1;i<=n+1;i++)
     {
         cout <<a[i].ff<<" "<<a[i].ss<<endl;
     }*/
     for (int i=1;i<=n;i++)
     {
        cin>>b[i];
     }
     sort(b+1,b+n+1);
     for (int i=1;i<=n;i++)
     {
       l[i]=max(l[i-1],max(0ll,a[i].ff-b[i]));

     }
     for (int i=n;i>=1;i--)
     {
         r[i]=max(r[i+1],max(0ll,a[i+1].ff-b[i]));
     }
     for (int i=1;i<=n+1;i++)
     {
         ans[a[i].ss]=max(l[i-1],r[i]);
        /*
           //  cout <<l[i-1]<<" "<<r[i+1]<<" "<<i<<endl;
         }*/
     }
     for (int i=1;i<=n+1;i++)
     {
         cout <<ans[i]<<" ";
     }



}

Compilation message (stderr)

ho_t1.cpp: In function 'int main()':
ho_t1.cpp:28:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   28 |         freopen("GIDDY.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
ho_t1.cpp:29:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   29 |         freopen("GIDDY.out", "w", stdout) ;
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 8 / 8
• Subtask 3: 91 / 91