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#include 
   
    #include 
    
     #include 
     
      #include 
      
       int replace_sub_str(const char *str,const char *substr,char *repstr,char *result){    const char *p,*q,*re,*temp1;    //char *q;    char *temp,*t;    int n,count = 0,m,i;    p = str;    q = substr;    re = repstr;    n = strlen(q);    m = strlen(re);    temp = (char*)malloc(n+1);    memset(temp,0x00,n+1);t = result;    while(*p)    {        memcpy(temp,p,n);        if(strcmp(temp,q)==0)        {            count++;            memset(temp,0x00,n+1);            p = p + n;            temp1 = repstr;            for(i = 0;i
      
     
    
   

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