CS253 IQ 12

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Which has O(1) amortized insertion at the end?

1. array
2. cache
3. set
4. string
5. unordered_map

In which does 12 always appear before 34?

1. deque<int>
2. list<int>
3. set<int>
4. unordered_set<int>
5. vector<int>

A set<int> is sorted by numeric value.

Which uses std::pair?

1. array
2. deque
3. multimap
4. string
5. unordered_set

map and multimap have key,value pairs.

Which is correct?

1. pair<int,double> p = {1,2.3}; cout << p[1];
2. pair<int,double> p = {1,2.3}; cout << p<double>;
3. pair<int,double> p = {1,2.3}; cout << p.double;
4. pair<int,double> p = {1,2.3}; cout << p<second>;
5. pair<int,double> p = {1,2.3}; cout << p.second;

E

Which is a valid λ-function declaration?

1. 1
2. 1 and 2
3. 1, 2, and 3
4. 1, 2, 3, and 4
5. 2, 3, and 4

B: 1 & 2 are the same. 3 & 4 are missing semicolons.