int a[15] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 };
int *p = &a[5];
int b = p[7];
int main()
{
int i = 10;
switch(i) {
case 9:i++;
case 10:i++;
case 11:i++;
default:i++;
}
printf("result= %dn", i);
return 0;
}
#include<stdio.h>
int fun(int i)
{
int cnt = 0;
while(i)
{
cnt++;
i=i&(i-1);
}
return cnt;
}
int main()
{
printf("%d\n\r",fun(2021));
return 0;
}
15题 | 被引用1次