# include "stdio.h"
Int main ()
{
Double a, b, c, d;
char x;
Lf the scanf (" % ", & amp; A);
X>=97 & amp; & x<=122;
While (b{
Lf the scanf (" % s % % % lf lf ", & amp; X, & amp; B, & amp; C., & amp; D);
B++;
Printf (" % s % 2 lf ", x, b + c - d);
}
}
The surface x> here;=97 & amp; & x<=122; What do you mean? What's the use?

CodePudding user response:

97-122 is lowercase letters a-z of ASCII

CodePudding user response:

Written x>='a' & amp; & x<='z' can also,