write C++ code

3 Consecutive integers You are given a string str. You need to implement a function to test whether str is formed by consecutive integers (without separators). The integers are in the standard decimal format. You may assume integers are non-negative. For example, str = 123467 is not formed by consecutive integers, while str = 1213141516 is (i.e., 12, 13, 14, 15, 16). You may assume integers are at most 999999.

starter code

//

// ECConsecutiveInts.cpp

//

//

// Created by Yufeng Wu on 1/15/23.

//

//

#include

#include

using namespace std;

// Test whether strInput is a string composed of consecutive and increasing integers (in decimal formats)

// Return true if yes and false otherwise (return false if there are unexpected characters)

// For example, 1234578 would return false, while 1213141516 would return true (12 13 14 15 16)

// You may assume the integers is at most 999999 and there is no any seperators between numbers

// You may also assume integers are all non-negatives

// Tip: try to use library functions instead of writing a lot of code yourself

// functions in C++ string you may find useful:

// substr: extract a substring from a string

// stoi: convert string to integer (be careful about how to handle exception)

// and so on..

bool ECConsecutiveInts(const string &strInput)

{

// your code here

}

test code

// To build: c++ ECConsecutiveIntsTest.cpp ECConsecutiveInts.cpp -o test

#include

#include

using namespace std;

extern bool ECConsecutiveInts(const string &strInput);

int main()

{

// Not consecutive

string a = "1234578";

bool fa = ECConsecutiveInts(a);

if(fa)

{

cout << "Consecutive ";

}

else

{

cout << "NOT Consecutive ";

}

// consecutive

string b = "111213141516";

bool fb = ECConsecutiveInts(b);

if(fb)

{

cout << "Consecutive ";

}

else

{

cout << "NOT Consecutive ";

}

// NOT consecutive

string c = "123124125127";

bool fc = ECConsecutiveInts(c);

if(fc)

{

cout << "Consecutive ";

}

else

{

cout << "NOT Consecutive ";

}

// NOT consecutive

string d = "123a567";

bool fd = ECConsecutiveInts(d);

if(fd)

{

cout << "Consecutive ";

}

else

{

cout << "NOT Consecutive ";

}

}