Submission #617770

#	Time	Username	Problem	Language	Result	Execution time	Memory
617770		AbdelmagedNour	The Big Prize (IOI17_prize)	C++17	Compilation error	0 ms	0 KiB

prize

#include<bits/stdc++.h>
using namespace std;
#include"grader.cpp"
#include "prize.h"
int MAX,res=-1;
bool is_max(vector<int>x){
    return x[0]+x[1]==MAX;
}
void divide(int l,int r){
    if(l>r||res!=-1)return;
    if(l==r){
        vector<int>x=ask(l);
        if(x[0]+x[1]==0)res=l;
        return;
    }
    vector<int>x=ask(l);
    if(!is_max(x)){
        if(x[0]+x[1]==0)res=l;
        divide(l+1,r);
        return;
    }
    vector<int>y=ask(r);
    if(!is_max(y)){
        if(y[0]+y[1]==0){
            res=r;
            return;
        }
        for(int k=__lg(r-l+1);k>=0;k--){
            if(l+(1<<k)<r&&ask(l+(1<<k))==x)l+=(1<<k);
        }
        divide(l+1,r-1);
        return;
    }
    if(x[0]==y[0]&&x[1]==y[1])return;
    int md=(l+r)>>1;
    divide(l,md);
    divide(md+1,r);
}
int find_best(int n){
    MAX=0;
    res=-1;
    for(int i=0;i<min(n,500);i++){
        vector<int>x=ask(i);
        if(x[0]+x[1]==0)return i;
        MAX=max(MAX,x[0]+x[1]);
    }
    divide(500,n-1);
	return res;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccOg1D8a.o: in function `ask(int)':
grader.cpp:(.text+0x80): multiple definition of `ask(int)'; /tmp/ccWidRE9.o:prize.cpp:(.text+0xa0): first defined here
/usr/bin/ld: /tmp/ccOg1D8a.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccWidRE9.o:prize.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status