Submission #1205054

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205054		bronze_coder	Hack (APIO25_hack)	C++20	Compilation error	0 ms	0 KiB

hack

#include <bits/stdc++.h>
using namespace std;

int squareroot(int n){
    int x = sqrt(n);
    while(x*x<n){
        x++;
    }
    while(x*x>n){
        x--;
    }
    return x;
}

int hack(){
    int low = 1;
    int high = 1000000000;
    while(low<high){
        int mid = (low+high)/2;
        int s = sqrt(high-low);
        vector<long long> query;
        for(int i=0;i<s;i++){
            query.push_back(i+1);
        }
        for(int i=0;low+s*(i+1)<=mid;i++){
            query.push_back(low+s*(i+1));
        }
        query.push_back(mid+1);
        if(collisions(query)){
            high = mid;
        }
        else{
            low = mid+1;
        }
    }
    return low;
}

Compilation message (stderr)

hack.cpp: In function 'int hack()':
hack.cpp:29:12: error: 'collisions' was not declared in this scope
   29 |         if(collisions(query)){
      |            ^~~~~~~~~~