Submission #427139

#	Time	Username	Problem	Language	Result	Execution time	Memory
427139		MOUF_MAHMALAT	The Big Prize (IOI17_prize)	C++14	0 / 100	70 ms	284 KiB

prize

#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
typedef int ll;
vector<ll>v,w,x;
ll l,r,m;
int find_best(int n)
{
    v=ask(0);
    l=0,r=n-1;
    while(l<n)
    {
        m=(l+n)/2;
        w=ask(m);
        if(w[0]+w[1]==0)
            return m;
        if(v==w)
        {
            l=m+1;
            continue;
        }
        for(ll i=l; i<=min(n-1,l+500); i++)
        {
            x=ask(i);
            if(x[0]+x[1]==0)
                return i;
            v=x;
        }
        l+=500;
    }
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:31:1: warning: control reaches end of non-void function [-Wreturn-type]
   31 | }
      | ^

• Subtask 1: 0 / 20
• Subtask 2: 0 / 80