제출 #311938

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
311938		decoqwq	Vrtić (COCI18_vrtic)	C++14	0 / 160	18 ms	372 KiB

vrtic

#include <bits/stdc++.h>
using namespace std;
int to[160],st[160],n,a[160],ans;
int gans()
{
	int qwq=0;
	for(int i=1;i<=n;i++)
	{
		qwq=max(qwq,abs(st[a[i]]-st[a[to[i]]]));
	}
	return qwq;
}
void SA()
{
	double Temp=3000;
	ans=gans();
	while(Temp>1e-4)
	{
		int x=rand()%n+1,y=rand()%n+1;
		while(x==y)
		{
			x=rand()%n+1,y=rand()%n+1;
		}
		swap(a[x],a[y]);
		int qwq=gans();
		if(qwq<ans)
		{
			ans=qwq;
		}
		else
		{
			if(exp((double)(ans-qwq)/Temp)*32767.0<=rand())
			{
				swap(a[x],a[y]);
			}
		}
		Temp*=0.96;
	}
}
int main()
{
	srand(19260817);
	cin>>n;
	ans=0x3f3f3f3f;
	for(int i=1;i<=n;i++)
	{
		scanf("%d",&to[i]);
	}
	for(int i=1;i<=n;i++)
	{
		scanf("%d",&st[i]);
		a[i]=i;
	}
	random_shuffle(a+1,a+n+1);
	for(int i=1;i<=100;i++)
	{
		SA();
	}
	cout<<ans<<"\n";
	for(int i=1;i<=n;i++)
	{
		cout<<st[a[i]]<<" ";
	}
}

컴파일 시 표준 에러 (stderr) 메시지

vrtic.cpp: In function 'int main()':
vrtic.cpp:47:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   47 |   scanf("%d",&to[i]);
      |   ~~~~~^~~~~~~~~~~~~
vrtic.cpp:51:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   51 |   scanf("%d",&st[i]);
      |   ~~~~~^~~~~~~~~~~~~

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