Replace Line in print in same line

replace_line_in_same_line.c

#include <stdio.h>
 
void clear(int size){
    char num[size];
   
    memset(num, ' ', size + 3);
    printf("\r%s", num);
}
 
int main()
{
    clear(printf("Hello Worldjjkkjjkjkjfkejfef"));
    printf("hello worlds again");
    return 0;
}