Please help me with this!!!

Question

#include <iostream>
#include <string>
#include <stdio> // this library doesn't work here
using namespace std;

int main()
{
char str[20],ans,a,b;
cout<<"Enter a String: ";
gets(str); // even tried cin.getline(str,20);
cout<<"\nDo need to replace a word: ";
cin>>ans;
if(ans=='Y'||ans=='y')
{
cout<<"Enter the word to be replaced: ";
cin>>a;
cout<<"\nWith word: "
cin>>b;
int s =strlen(str);
for(int i=0;i<s;i++)
{
if(str[i]==a)
{
str[i]=b;
}
}
puts(str);
}
return 0;
}

Answer 1

What is the problem?

Answer 2

Thank but I already looked for the problem in my book so the issue is with compiler because sololearn codebock instead of turbo !!!
The solution is cstdio

Answer 3

Stdio is the problem... check out the comments!!!!

Answer 4

Try this but it doesn't work

#include <iostream>
#include <string.h>
#include "stdio.h"

int main(){
char str[20],ans,a,b;
std::cout<<"Enter a String: ";
gets(str);
Doing a little research I found that gets() was deprecated in C++11 and removed from C++14.