#include <sys/time.h>
#include <sys/resource.h>
#include <stdio.h>


int x[1000000];

main()
{
	int i, sum;
  	int who;
  	struct rusage rusage;
  	long hsec,husec;
	int size;
	int regsize;


	printf("Enter size: ");
	scanf("%d",&size);
	regsize=size;
	printf("\n");
	for (i=0; i<regsize; i++) {
		x[i] = 1;
	}

  	who=RUSAGE_SELF;
  	getrusage(who,&rusage);
  	hsec = rusage.ru_utime.tv_sec;
  	husec = rusage.ru_utime.tv_usec;

	
	sum =0;
	for (i = 0; i < regsize; i++) {
		sum += x[i];
	}

  	who=RUSAGE_SELF;
  	getrusage(who,&rusage);
  	hsec = rusage.ru_utime.tv_sec - hsec;
  	husec = rusage.ru_utime.tv_usec - husec;
  	printf ("time taken %f \n",hsec+husec/1000000.0);
}