小程序

#include "stdio.h"

#include "stdlib.h"

#include "string.h"

int find_transtoint(char *pinput, int *ptranto)

{

char *ptmp = pinput;

char autmp[256] = {0};

int i = 0;

while(*pinput != '\0')

{

if(*pinput == ' ')

{

memcpy(autmp, ptmp, pinput-ptmp);

ptranto[i] = atoi(autmp); 

i++;

ptmp = pinput+1;

}

pinput++;

}

ptranto[i] = atoi(ptmp); 

/* 返回实际的个数 */

return (i+1);

}

void find_swap(int *pswapto, int ilen)

{

int iMin = 0;

int i = 0;

int j = 1;

int iRecord = 0;

int iTmp = 0;

if(1 == ilen)

{

return;

}

while(i < ilen)

{

iMin =  (pswapto[i]%1000);

j = i+1;

while(j < ilen)

{

if(iMin > (pswapto[j]%1000))

{

iMin = pswapto[j]%1000;

iRecord = j;

}

j++;

}

iTmp = pswapto[iRecord];

pswapto[iRecord] = pswapto[i];

pswapto[i] = iTmp;

i++;

}

}

void find_string(char *pinput, char *output)

{

int iaInput[256] = {0};

char caInput[256] = {0};

int iLen = 0;

int i = 0;

if((pinput == NULL)||(*pinput == '\0'))

{

return;

}

iLen = find_transtoint(pinput, iaInput);

  find_swap(iaInput, iLen);

while(i < iLen)

{

memset(caInput, 0, sizeof(caInput));

ltoa(iaInput[i], caInput, 10);

if(i == 0)

{

sprintf(output, "%s", caInput);

}

else

{

sprintf(output, "%s %s", output, caInput);

}

i++;

}

}

int main()

{

//char *p = "123 1000 2000 3380 4670 5822 5022";

char *p = "";

char acoutput[1024] = {0};

find_string(p, acoutput);

return 0;

}