Question

华为面试题

C语言题，输入一个正整数，要求判断这个数是否是对称数（比如121，123321，1456541）。要求不能调用字符串库函数。

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <memory.h>

int main(int argc, char* argv[])
{
while(1)
{
unsigned int nInt = 0;
scanf("%d",&nInt);

if(0 == nInt)
break;

char szDigit[32];
memset(szDigit,0,sizeof(szDigit));
unsigned int nIntT = nInt;

int nCount = 0;
while(nIntT > 0 && nCount < sizeof(szDigit) - 1)
{
szDigit[nCount] = nIntT % 10;
nIntT /= 10;
nCount++;
}

bool bRel = true;
for(int i = 0; i<nCount/2;i++)
{
if(szDigit[i] != szDigit[nCount - i - 1])
bRel = false;
}

if(bRel)
printf("%d is Y\n",nInt);
else
printf("%d is N\n",nInt);

}

system("pause");
return 0;
}

Answer 2

4.struct为关键字,是定意结构体的意思
6.全局变量,全局有效,局部变量,该函数内有效
8.16位

Answer 3

这就是华为面试的题目吗?是什么职位的啊?
4.struct为关键字,是定意结构体的意思
6.全局变量,全局有效,局部变量,该函数内有效
8.16位

Answer 4

#include
<stdio.h>
#include
<stdlib.h>
#include
<memory.h>
int
main(int
argc,
char*
argv[])
{
while(1)
{
unsigned
int
nInt
=
0;
scanf("%d",&nInt);
if(0
==
nInt)
break;
char
szDigit[32];
memset(szDigit,0,sizeof(szDigit));
unsigned
int
nIntT
=
nInt;
int
nCount
=
0;
while(nIntT
>
0
&&
nCount
<
sizeof(szDigit)
-
1)
{
szDigit[nCount]
=
nIntT
%
10;
nIntT
/=
10;
nCount++;
}
bool
bRel
=
true;
for(int
i
=
0;
i<nCount/2;i++)
{
if(szDigit[i]
!=
szDigit[nCount
-
i
-
1])
bRel
=
false;
}
if(bRel)
printf("%d
is
Y\n",nInt);
else
printf("%d
is
N\n",nInt);
}
system("pause");
return
0;
}

Answer 5

1
一个
2
8