HW4-1

Description

此題節錄至東華資工 online judge，上學期 week 12 - 3
http://134.208.3.66/problem/PR110-12-03

請完成下列函數，replace 以及 replaceAll，函數的定義如下

char *replace(char *source, char *pattern, char *replacement);

函數 replace 會在字串 source 中找到第一個出現的 pattern 然後將它替換成 replacement 並回傳字串source
char *replaceAll(char *source, char *pattern, char *replacement);

函數 replace 會在字串 source 中找到所有的的 pattern 然後將它們全部都替換成 replacement 並回傳字串source

Please finish the function replace and function replaceAll.

char *replace(char *source, char *pattern, char *replacement);

char *replaceAll(char *source, char *pattern, char *replacement);

Function replace will find the first appear pattern in source and replace it withreplacement.

Function replaceAll will find all pattern in source and replace it with replacement.