?? sieve.c
字號(hào):
#include "uhal.h"
#include <time.h>
#define MAX 50000
#define ITER 100
char *test_name = "Sieve Test" ;
char * test_ver = "\nProgram Version 1.0\n";
int t1, t2;
long i;
int init_test(void)
{
uHALr_printf ("Start, number of iterations: %i\n", ITER);
return 0;
}
int test()
{
long j, k;
char p[MAX];
t1 = clock();
for (k = 0; k < ITER; k++) {
for (i = 0; i < MAX; i++)
p[i] = 1;
i = 2;
while (i < MAX / 2)
{
for (j = 2 * i; j < MAX; j = j + i)
p[j] = 0;
while (p[++i] == 0)
;
}
i = MAX;
while (p[--i] == 0)
;
} /* endfor */
t2 = clock();
return 0;
}
int test_result(void)
{
uHALr_printf("\nNumber of entries was: %i", MAX);
uHALr_printf("\nHighest prime was: %d", i);
uHALr_printf("\nTime: %d milliseconds\n", t2 - t1) ;
return 0;
}
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