C++ Exercises: Count a substring of length 2 appears in a given string and also as the last 2 characters of the string
C++ Basic Algorithm: Exercise-30 with Solution
Write a C++ program to count a substring of length 2 appears in a given string and also as the last 2 characters of the string. Do not count the end substring.
Sample Solution:
C++ Code :
#include <iostream>
using namespace std;
int test(string str)
{
string last_two_char = str.substr(str.length()-2);
int ctr = 0;
for (int i = 0; i < str.length()-2; i++)
{
if (str.substr(i, 2) == (last_two_char)) ctr++;
}
return ctr;
}
int main()
{
cout << test("abcdsab") << endl;
cout << test("abcdabab") << endl;
cout << test("abcabdabab") << endl;
cout << test("abcabd") << endl;
return 0;
}
Sample Output:
1 2 3 0
Pictorial Presentation:

Flowchart:

C++ Code Editor:
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Previous: Write a C++ program to create a string like "aababcabcd" from a given string "abcd".
Next: Write a C++ program to check whether the sequence of numbers 1, 2, 3 appears in a given array of integers somewhere.
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