Ask a question, the program runs without error but is always incorrect!

squall_wl

#include "stdio.h"
main ()
{
unsigned long x;
int m, y;
scanf ("% d\n",&m);
x = 100;
x >> (m-1);
y = x&&000000000000001;
printf ("y =% d\n",&y);
}


ctrl + f7 is displayed as follows:
-------------------- Configuration: Text2-Win32 Debug --------------------
Compiling ...
Text2.c
D:\c\mxm\Text2.c (8): warning C4552: '>>': operator has no effect; expected operator with side-effect

Text2.obj-0 error (s), 1 warning (s)
Please master guidance, thank you!

珈蓝易拉罐

x >> (m-1);
This has no effect.
Do you want to:
x = x >> (m-1)
what?
or:
x >> = (m-1);

珈蓝易拉罐

Do n’t even say that I have seen several companies like this kind of face-to-face question:
unsigned int i = 1;
i << 2;
Ask you how many i is now, huh.

chengwei2537

#include "stdio.h"
void main ()
{
unsigned long;
int m, y;
scanf ("% d",&m);
x = 100;
x = x << m-1;
y = x&000000000000001;
printf ("y =% d\n", y);
}

squall_wl

I know
Is x>>=(m-1)
&&should be&
...