Submission #8126

#	Time	Username	Problem	Language	Result	Execution time	Memory
8126		gs13105	Languages (IOI10_languages)	C++98	101 / 100	5020 ms	112336 KiB

lang

#include <cmath>
#include <string.h>
#include "grader.h"
#include "lang.h"

unsigned short pre3[56][1048576];
unsigned short num3[1048576];
unsigned int p3[98];
unsigned int pre1[65536][56];
unsigned int num1[65536];
double now[56];
const unsigned int mod=1048575;

void excerpt(int *E)
{
	int c,r,mxnum=0,i,j;
	double z,mx;
	memset(now,0,sizeof(now));
	p3[0]=(E[0]<<10^E[1]<<5^E[2])&mod;
	c=num3[p3[0]];
	for(i=0;i<56;i++)
	{
		z=cbrt(pre3[i][p3[0]]);
		now[i]+=1.9*z*z/(c+5);
	}
	for(i=1;i<98;i++)
	{
		p3[i]=(p3[i-1]<<5^E[i+2])&mod;
		c=num3[p3[i]];
		for(j=0;j<56;j++)
		{
			z=cbrt(pre3[j][p3[i]]);
			now[j]+=1.9*z*z/(c+5);
		}
	}
	for(i=0;i<100;i++)
	{
		if(num1[E[i]]>0)
		{
			for(j=0;j<56;j++)
			{
				z=cbrt(pre1[E[i]][j]);
				now[j]+=z*z/num1[E[i]];
			}
		}
	}
	mx=now[0];
	for(i=1;i<56;i++)
	{
		if(now[i]>mx)
		{
			mx=now[i];
			mxnum=i;
		}
	}
	r=language(mxnum);
	for(i=0;i<98;i++)
	{
		num3[p3[i]]++;
		pre3[r][p3[i]]++;
	}
	for(i=0;i<100;i++)
	{
		num1[E[i]]++;
		pre1[E[i]][r]++;
	}
}

• Subtask 1: 30 / 30
• Subtask 2: 71 / 80