vectorMysteryInsert

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< vectorMystery1

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

Language/Type: C++ Vector collections

What are the contents of the vector after the following code executes?

Vector<int> vec;
for (int i = 1; i <= 5; i++) {
    vec += 2 * i;         // {2, 4, 6, 8, 10}
}
int size = vec.size();
for (int i = 0; i < size; i++) {
    vec.insert(i, 42);    // add 42 at index i
}
cout << vec << endl;

vector contents
`{2, 4, 6, 8, 10, 42, 42, 42, 42, 42}` `{42, 42, 42, 42, 42, 2, 4, 6, 8, 10}` `{42, 2, 42, 4, 42, 6, 42, 8, 42, 10}` `{2, 42, 4, 42, 6, 42, 8, 42, 10, 42}` `other`

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vectorMysteryInsert