下面程序中的关系表达式过于复杂，并有些错误，请简化并改正它。
#include <stdio.h>
int main (void) /* 1 */
{ /* 2 */
int weight, height; /* weight 以磅为单位， height 以英寸为单位 */
/* 4 */
scanf ("%d, weight, height); /* 5 */
if (weight < 100 && height>64) /* 6 */
if (height >= 72) /* 7 */
printf ("You are very tall for your weight.\n");
else if (height < 72 && > 64) /* 9 */
printf ("You are tall for your weight.\n"); /* 10 */
else if (weight > 300 && ! (weight <= 300)) /* 11 */
&&height<48) /* 12 */
if (! (height >= 48) /* 13 */
printf (" You are quite short for your weight.\n");
else /* 15 */
printf (" Your weight is idea.\n"); /* 16 */
/* 17 */
return 0;
} 
#include <stdio.h> int main (void) { int weight, height; /* weight 以磅为单位， height 以英寸为单位 */ printf ("Enter your weight in pounds and "); printf ("your height in inches.\n"); scanf ("%d %d, &weight, &height); if (weight < 100 && height>64) if (height >= 72) printf ("You are very tall for your weight.\n"); else printf ("You are tall for your weight.\n"); else if (weight > 300 && height < 48) printf (" You are quite short for your weight.\n"); else printf (" Your weight is idea.\n"); return 0; }