让你吐血的 C 基础 面试题目

题目：输入一组数值 期间用逗号隔开， 按大小排序后 同样用逗号隔开输出。

#include
#include

void Ch_Number(int *Dest, char *Str)
{
char TmpBuf[5] = {0};
int LenStr = 0, i = 0, j = 0, k = 0;
int TmpValue = 0;


if(NULL == Dest || NULL == Str)
{
return;
}


    LenStr = strlen(Str);
for(i = 0; i <= LenStr; i++)
{
if(',' == *(Str + i) || i >= (LenStr))
{
j = 0;
*(Dest + k) = atoi(TmpBuf);
memset(TmpBuf, 0x0, 5);
k++;
}
else
{
TmpBuf[j] = *(Str + i);
j++;
}
}
return;   
}


void Num_Char(char *Dest, int *Str)
{
char *tmp = NULL;
char Svalue = 0, char_value = 0, k = 0, j = 0;


if(NULL == Dest)
{
return;
}


tmp = Dest;
while('\0' != *(Str + k))
{
Svalue =  (char)*(Str + k);
while(Svalue)
{
char_value = ((Svalue%10) + '0');
sprintf((tmp + j),"%c",char_value);
Svalue = Svalue/10;
j++;
}
sprintf((tmp + j),"%c", ',');
j++;
k++;
}
return;  
}




void FindMaxNumber(int *Dest)
{
  int *tmp = NULL;
  int LenStr = 0, k = 0, j = 0;
  int TmpValue = 0;


  if(NULL == Dest)
  {
 return;
  }
  
  tmp = Dest;
  while('\0' != *(tmp + k))
  {
 TmpValue = *(tmp + k);
 j = k;
 while('\0' != *(tmp + j))
 {
 if(TmpValue < *(tmp + j))
 {
 *(tmp + k) =  *(tmp + j);
 *(tmp + j) = TmpValue;
 TmpValue = *(tmp + k);
 }
 j++;
 }
 k++;
  }
   return;
}


int main()
{
char OutBuff[28] = {0},InBuff[28] = {0};
int TmpBuff[28] = {0};


printf("Please Input Number:");
scanf("%s", InBuff);


//将字符转换成数字
Ch_Number(TmpBuff, InBuff);

//冒泡排序
FindMaxNumber(TmpBuff);


//将数字转换成字符
Num_Char(OutBuff, TmpBuff);


printf("%s", OutBuff);
}