Pagerank.main

#include<stdio.h>
#include<math.h>

void kiir (double tomb[], int db){
	for (int i=0; i<db; i++)
		printf("%lf\n",  tomb[i]);
}
double tavolsag(double PR[], double PRV[],int n){
	double osszeg=0.0;
	for (int i=0;i<n;++i){
	    	osszeg += (PRV[i] - PR[i]) * (PRV[i] - PR[i]);
	    return sqrt(osszeg);
	}
}

int main(void){
	double L[4][4]={ //J JP JPL M
		{0.0,	0.0, 	 1.0/3.0, 0.0},
		{1.0,	1.0/2.0, 1.0/3.0, 1.0},
		{0.0,	1.0/2.0, 0.0,	  0.0},
		{0.0,	0.0,	 1.0/3.0, 0.0}
	};

	double PR[4]={0.0, 0.0, 0.0 ,0.0};
	double PRV[4]={1.0/4.0, 1.0/4.0, 1.0/4.0, 1.0/4.0};

	int i,j;
	for(;;){
		for(i=0;i<4;i++)
			PR[i] = PRV[i];
		for (i=0;i<4;i++){
		double ideg=0;
			for (j=0;j<4;j++)
				ideg+=L[i][j]*PR[j];
		PRV[i]=ideg;
		}
		    	if(tavolsag(PR,PRV,4)<0.000000001)
			break;
	}
	kiir(PR,4);
return 0;
}