Joining two vectors in c++

// my linkedin : https://www.linkedin.com/in/vaalarivan-prasanna-3a07bb203/
vector<int> AB;
AB.reserve(A.size() + B.size()); // preallocate memory
AB.insert(AB.end(), A.begin(), A.end());
AB.insert(AB.end(), B.begin(), B.end());
//eg : A = {4, 1}, B = {2, 5}
//after the 2 insert operations, AB = {4, 1, 2, 5}

Similar codes

0 vote271 views1 answer
Input time from console C++
C++
9 votes270 views3 answers
How to iterate in string in c++
C++
0 vote281 views1 answer
Not c++
C++
7 votes208 views1 answer
Remove from the front of a vector
C++
2 votes265 views1 answer
Cannot find "-lsqlite3" C++
C++
6 votes263 views2 answers
How to print double value up to 9 decimal places in c++
C++
1 vote245 views1 answer
C++ random number 0 to 1
C++
0 vote281 views6 answers
Iterator on std::tuple
C++
0 vote277 views1 answer
271533778232847
C++
4 votes257 views1 answer
C++ show time elapsed
C++