c++ program to count occurrence of a given word in a text file code example
Example 1: find all occurrences of a substring in a string c++
#include <string>
#include <iostream>
using namespace std;
int main()
{
string s("hello hello");
int count = 0;
size_t nPos = s.find("hello", 0);
while(nPos != string::npos)
{
count++;
nPos = s.find("hello", nPos + 1);
}
cout << count;
};
Example 2: find last occurrence of character in string c++
auto find_char = 'a'
size_t last_occurence_index = str.find_last_of(find_char);