Submission #839560

#	Time	Username	Problem	Language	Result	Execution time	Memory
839560		model_code	Coreputer (IOI23_coreputer)	C++17	80 / 100	1 ms	228 KiB

coreputer

// partially_correct/solution-N+log+c.cpp

#include "coreputer.h"

#include <iostream>

std::vector<int> malfunctioning_cores(int N) {
	std::vector<int> T;
	std::vector<int> c(N);

	int a = 0, b = N-1;
	while(a!=b){
		int half = (a+b)/2;
		T.clear();
		for(int i=0; i<=half; i++) T.push_back(i);

		if(run_diagnostic(T)>=0){
			b = half;
		} else {
			a = half+1;
		}
	}

	int h = a;
	c[h] = 1;
	for(int i=0; i<h; i++){
		T.clear();
		for(int j=0; j<=h; j++){
			if(i!=j) T.push_back(j);
		}

		if(run_diagnostic(T)==-1) c[i] = 1;
	}

	h--;
	for(int i=h+2; i<N; i++){
		T.clear();
		for(int j=h+1; j<N; j++){
			if(i!=j) T.push_back(j);
		}

		if(run_diagnostic(T)<=0) c[i] = 1;
	}

	return c;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 40
• Subtask 3: 30 / 40