#include <iostream>
#include <string>
using namespace std;
int main() {
string a = "abc abc abc abc abc def def def abac abca";
string b = "def";
int c = -1;
size_t poz = -1;
do {
++c;
poz = a.find(b, poz + 1);
} while (poz != string::npos);
cout << c;
return 0;
}
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