Submission #1220526

#	Time	Username	Problem	Language	Result	Execution time	Memory
1220526		moha1111	Rice Hub (IOI11_ricehub)	C++20	Compilation error	0 ms	0 KiB

ricehub

//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#include "ricehub.h"
#include <cstdio>
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#define all(a) a.begin() , a.end()
const long long mod = 1000000007;
using namespace std;
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;
typedef tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update>indexed_multiset;

long long 

int besthub(long long R, long long L, int a[], long long B)
{
    long long st = 1 , en = R , ans;
    while(st <= en)
    {
        long long mid = (st + en) / 2;
        indexed_multiset cur;
        for(int i = 0 ; i < mid ; i++)
            cur.insert(a[i]);

        if(mid % 2 == 0)
        {
            if(*cur.find_by_order(mid / 2) <= B)
            {
                st = mid + 1 , ans = mid;
                continue;
            }
            for(int i = mid ; i < r ; i++)
            {
                cur.insert(a[mid]);
                cur.erase(cur.find(a[i - mid]));
                if(*cur.find_by_order(mid / 2) <= B)
                {
                    st = mid + 1 , ans = mid;
                    continue;
                }
            }
            en = mid - 1;
        }
        else
        {
            if(*cur.find_by_order(mid / 2) + *cur.find_by_order(mid / 2 + 1)<= B * 2)
            {
                st = mid + 1 , ans = mid;
                continue;
            }
            for(int i = mid ; i < r ; i++)
            {
                cur.insert(a[mid]);
                cur.erase(cur.find(a[i - mid]));
                if(*cur.find_by_order(mid / 2) + *cur.find_by_order(mid / 2 + 1)<= B * 2)
                {
                    st = mid + 1 , ans = mid;
                    continue;
                }
            }
            en = mid - 1;
        }
    }
    cout << ans << '\n';
}

Compilation message (stderr)

ricehub.cpp: In function 'long long int besthub(long long int, long long int, int*, long long int)':
ricehub.cpp:32:35: error: 'r' was not declared in this scope
   32 |             for(int i = mid ; i < r ; i++)
      |                                   ^
ricehub.cpp:51:35: error: 'r' was not declared in this scope
   51 |             for(int i = mid ; i < r ; i++)
      |                                   ^
ricehub.cpp:65:1: warning: no return statement in function returning non-void [-Wreturn-type]
   65 | }
      | ^