Submission #624240

#	Time	Username	Problem	Language	Result	Execution time	Memory
624240		MatesV13	Finding Routers (IOI20_routers)	C++17	100 / 100	1 ms	724 KiB

routers

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

int use_detector(int x);

int rezultati[100005];
int nadi(int lo, int hi, int val){
	if (lo==hi) return lo;
	int mid = (lo+hi+1)/2;
	if (!rezultati[mid]) 
		rezultati[mid] = use_detector(mid) + 1;
	int odgovor = rezultati[mid]-1;
	if (odgovor >= val) return nadi(lo, mid-1, val);
	return nadi (mid, hi, val);
}

vector<int> find_routers(int l, int n, int q){
	
	vector<int> poz;
	poz.push_back(0);
	
	while (poz.size() != n){
		int temp = nadi(0, l, poz.size());
		int idx = 2*temp-poz[poz.size()-1];
		poz.push_back(idx);
	}
	
	return poz;
}

Compilation message (stderr)

routers.cpp: In function 'std::vector<int> find_routers(int, int, int)':
routers.cpp:22:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   22 |  while (poz.size() != n){
      |         ~~~~~~~~~~~^~~~

• Subtask 1: 16 / 16
• Subtask 2: 21 / 21
• Subtask 3: 23 / 23
• Subtask 4: 40 / 40