stringMysteryAB

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Main Page → Exercises → C++ → Solve an Exercise

Language/Type: C++ parameters string references

What is the output of the following code?

void mystery(string a, string& b) {
    a.erase(0, 1);
    b += a[0];
    b.insert(3, "FOO");
}

int main() { // 01234
    string a = "marty";
    string b = "stepp";
    mystery(a, b);
    cout << a << " " << b << endl;
    return 0;
}

output
`marty steFOOppa` `arty steFOOpp` `marty stepp` `arty msteppFOO` `arty stepp` (order shuffled)

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stringMysteryAB