Submission #908418

#	Time	Username	Problem	Language	Result	Execution time	Memory
908418		zyq181	Coreputer (IOI23_coreputer)	C++17	0 / 100	1 ms	424 KiB

coreputer

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

vector<int> malfunctioning_cores(int N){
	vector<int> them;
	int lo = 0;
	int hi = N - 1;
	vector<int> q;
	bool flag = false;
	while(lo < hi){
		int m = (lo + hi)/2;
		q.clear();
		for(int a=0; a<=m; a++) q.push_back(a);
		int t = run_diagnostic(q);
		if(t == 0) flag = true;
		if(t == -1){
			lo = m + 1;
		}
		else hi = m;
	}
	them.push_back(lo);
	for(int a=0; a<lo; a++){
		q.clear();
		for(int b=0; b<=lo; b++) if(a != b) q.push_back(b);
		if(run_diagnostic(q) == -1){
			them.push_back(a);
		}
	}
	for(int a=lo+1; a<N; a++){
		q.clear();
		for(int b=0; b<lo; b++) q.push_back(b);
		q.push_back(a);
		if(run_diagnostic(q) != -1) q.push_back(a); 
	}
	vector<int> r;
	sort(them.begin(), them.end(), greater<int>());
	for(int a=0; a<N; a++){
		if(them.back() == a){
			r.push_back(1);
			them.pop_back();
		}
		else{
			r.push_back(0);
		}
	}
	return r;
}

Compilation message (stderr)

coreputer.cpp: In function 'std::vector<int> malfunctioning_cores(int)':
coreputer.cpp:10:7: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
   10 |  bool flag = false;
      |       ^~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40