Container

Question 1

the library of pair

Answer 1

include<utility></utility>

Question 2

pair declaration

Answer 2

pair<F, S> newPair (newPair is the pair’s name)

Question 3

create a pair with the specified first and second values, and how to access them

Answer 3

make_pair() ; name’s pair.first, name’s pair.second

Question 4

declare a pair playAttempts with an integer as the first element and a double as the second element

Answer 4

pair<int, double> playAttempts;

Question 5

the library of list

Answer 5

include <list></list>

Question 6

list declaration

Answer 6

list<T> newList;</T>

Question 7

push_back()

Answer 7

adds an element to the end of the list

Question 8

push_front()

Answer 8

adds an element to the front of the list

Question 9

front

Answer 9

returns the front element of the list

Question 10

back()

Answer 10

return the back element (last element) of the list

Question 11

pop_back, pop_front

Answer 11

removes element from the end of the list, from the front of the list

Question 12

remove

Answer 12

remove all the occurrences in the list

Question 13

how to declare the iterator in the list

Answer 13

list<T>:: iterator iter;</T>

Question 14

insert

Answer 14

insert(iteratorPosition, newElement) -> insert newElement into the list before the iteratorPosition

Question 15

erase

Answer 15

erase(iteratorPosition) - removes a single element at iteratorPosition
erase(iteratorFirst, iteratorLast) - removes a range of elements from iteratorFirst(inclusive) to iteratorLast(exclusive)

Question 16

emplace() function in Map

Answer 16

emplace function associates a key with specified value. If the key does not exist, the map is not updated.

Question 17

how to update map entry

Answer 17

EX:
statePopulation.at(“CA”) = 39000

Question 18

how to determine if the key exists in the map

Answer 18

count(key)

Question 19

erase(key)

Answer 19

removes the map entry for the specified key if the key exists

Question 20

clear()

Answer 20

removes all map entries

Question 21

how to define function template

Answer 21

template<typename>
T TripleMin(T para1, T para2, T para3)</typename>

Question 22

function template with multiple parameters

Answer 22

template<typename T1, typename T2>
ReturnType FunctionName(Parameters){
….
}

Question 23

class template declaration

Answer 23

template<typename>
class TripleItem {</typename>

}

template<typename> T1
TripleItem<TheType>::</TheType></typename>