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#include<string>
#include<limits>
#include<iostream>
using namespace std;
int main()
{
char targetString[100] = "fox";
char targetString2[100] = "the";
char strings[100];
cin>>strings;
double minDistance = std::numeric_limits<double>::infinity();
for (int x = 0; x < strlen(strings); x++)
{
	if (strings[x].equals(targetString))
	{
		for (int y = x; y < strlen(strings); y++)
		{
			if (strings[y] == (targetString2))
			{
				if (minDistance > (y - x))
				{
					minDistance = y - x;
				}
			}
		}
		for (int y = x; y >= 0; y--)
		{
			if (strings[y] == (targetString2))
			{
				if (minDistance > (x - y))
				{
					minDistance = x - y;
				}
			}
		}
	}
}
cout<<minDistance;
return 0;
}

prog.cpp: In function ‘int main()’:
prog.cpp:12:35: error: ‘strlen’ was not declared in this scope
 for (int x = 0; x < strlen(strings); x++)
                                   ^
prog.cpp:14:17: error: request for member ‘equals’ in ‘strings[x]’, which is of non-class type ‘char’
  if (strings[x].equals(targetString))
                 ^~~~~~
prog.cpp:18:36: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    if (strings[y] == (targetString2))
                                    ^
prog.cpp:28:36: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    if (strings[y] == (targetString2))
                                    ^

Standard output is empty