Submission #103210

#	Time	Username	Problem	Language	Result	Execution time	Memory
103210		daniel920712	The Big Prize (IOI17_prize)	C++14	20 / 100	63 ms	3552 KiB

prize

#include <iostream>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#include "prize.h"

using namespace std;
int all[200005];
int l[200005],r[200005];
int find_best(int n)
{
    vector < int > t;
    int i,x=floor(sqrt(n)),j,all=0;
    for(i=0;i<n;i+=x)
    {
        //printf("%d\n",i);
        t=ask(i);
        all++;
        l[i]=t[0];
        r[i]=t[1];
        if(l[i]==0&&r[i]==0) return i;
    }
    for(i=x;i<n;i+=x)
    {
        if(i+x>=n&&r[i])
        {
            for(j=i+1;j<n;j++)
            {
                all++;
                assert(all<10000);
                t=ask(j);
                l[j]=t[0];
                r[j]=t[1];
                if(l[j]==0&&r[j]==0) return j;
            }
        }
        else
        {
            if(r[i]!=r[i+x])
            {
                for(j=i+1;j<i+x;j++)
                {
                    all++;
                    assert(all<10000);
                    t=ask(j);
                    l[j]=t[0];
                    r[j]=t[1];
                    if(l[j]==0&&r[j]==0) return j;
                }
            }
        }
    }
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:53:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

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