Program to remove "dub" from a string

Question

The new type of music mix made with the word "dub" . The process is like this . Every orginal song must start with the word "dub" and after every word of the orginal lyric the word "dub" should be added.
Suppose:

Input:
37
dubneverdubgonnadubgivedubyoudubupdub

Expect output :
never gonna give you up

How can i solve this program in c? Anyone please help me.

Answer 1

a slightly better JS approach might be
console.log('dubneverdubgonnadubgivedubyoudubupdub'.replace(/dub/g, ' '));

wonder if C has replace() like others!?!

a verbose C approach could be

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stddef.h>

int main()
{
const char* s = "dubneverdubgonnadubgivedubyoudubupdub";
const char* pS = s;
size_t sLen = strlen(s);
char* buf = malloc(sizeof(char) * sLen);
if (buf == NULL)
{
return 1;
}
memset(buf, 0, sLen);
char* bP = buf;
const char* pT = NULL;
size_t pos = 0;
while ((pS = strstr(pS, "dub")) != NULL)
{
pT = strstr(pS + 3, "dub");
if (pT == NULL)
{
break;
}
else
{
pos = pT - (pS + 3);
strncpy(bP, pS + 3, pos);
strcat(bP, " ");
pS += 3;
bP += (pos + 1);
}
}
if ((pT = strrchr(buf, ' ')) != NULL)
{
buf[pT - buf] = '\0';
}
printf("%s\n", buf);
free(buf);
return 0;
}

https://code.sololearn.com/cA24A62a24A7

Answer 2

For JavaScript

"dubneverdubgonnadubgivedubyoudubupdub".split("dub").join(" ").trim("")

https://code.sololearn.com/cvkzrp2oALbA/?ref=app

Answer 3

Please use C language, not JavaScript or other languages.