Autodesk programming face the questions together, we try playing Write a function to reduce a sentence, such as : "MY name is chris" compression "Mynameischris", please use the smallest and occupied memory to achieve the maximum efficiency of the algorithm. I wrote one, please enlighten #include "Stdio.h> Char * compress (char * ptr) { Char 6-12, *tail; Char c; P=tail=ptr; While (c=*p)         { If (c!=32)                 { *tail++=c; *p=32;                 } P++;         } *tail= '\0'; Return ptr; } Int main () { Char a[30]={ "MY name is") Printf ( "%s" compress (a)); Printf ( "done\n"); Return 0 } /*** Write a function to reduce a sentence, such as : "MY name is chris" compression "Mynameischris" Please use the smallest and occupied memory to achieve the maximum efficiency of the algorithm. ****/ #include "Stdio.h> #include "String.h> #include "Malloc.h> //both Passed on VC + + 6.0     //writen By [stdlib.h] Compress1 char * (char * ptr) { Char 6-12, *tail; Char c; P=tail=ptr; While (c=*p)         { If (c!=32)                 { *tail++=c; *p=32;                 } P++;         } *tail= '\0'; Return ptr; } //writen By [choki] 4003rd Oh, I do not have the space to use Char * compress2 (const char * ptr) { Char *result; Int count; Result = (char *) malloc (sizeof (char) *strlen (ptr)); If (result ====== NULL) Return NULL;         Memset (result, 0x00, strlen (ptr)); For (count=0; count "strlen (ptr); count++)         { If (ptr[count]> '') Memcpy (result+strlen (result), ptr+count, 1);         } Return result; } Int main () { Char a[30]={ "MY name is chris") Printf ( "%s\n" compress1 (a)); Printf ( "%s\n" compress2 (a)); Printf ( "done\n"); Return 0 } --> *p=32; How I think this irrelevant? Memcpy (result+strlen (result), ptr+count, 1); The total will be *tail++=c; *p=32; High efficiency Ha ha [ Closed window ]