Submission #371375

#	Time	Username	Problem	Language	Result	Execution time	Memory
371375		leinad2	The Big Prize (IOI17_prize)	C++17	20 / 100	142 ms	1280 KiB

prize

#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
int A[200010];
int find_best(int n)
{
    while(1)
    {
        int a=0, b=n-1;
        while(a<b)
        {
            int m=a+b>>1;
            vector<int>v=ask(m);
            if(v[0]+v[1]==0)return m;
            if(v[1]>A[m+1])a=m+1;
            else b=m;
        }
        vector<int>v=ask(a);
        if(v[0]+v[1]==0)return a;
        for(int i=0;i++<a;)A[i]++;
    }
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:12:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   12 |             int m=a+b>>1;
      |                   ~^~

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