View Code of Problem 3924

#include<stdio.h>
#include<string.h>
char s[100000000];
int main(){
  scanf("%s",s);
  int len=strlen(s);
  for(int i=0;i<len;i++){
    if(s[i]!=s[i+1])
      printf("%c",s[i]);
  }
  return 0;
}