Cpp get last element of vector

Access last element in vector in c++

vector<int> v;
cout << v[v.size() - 1];
cout << *(v.end() - 1);
cout << *v.rbegin();
// all three of them work

Cpp get last element of vector

vector<int> vec;
vec.push_back(0);
vec.push_back(1);
int last_element = vec.back();
int also_last_element = vec[vec.size() - 1];

C++ get last element in array

#include<iostream>
/*To get the last element of the array we first get the size 
    of the array by using sizeof().  Unfortunately, this gives 
    us the size of the array in bytes.  To fix this, we divide
    the size (in bytes) by the size of the data type in the array.
    In our case, this would be int, so we divide sizeof(array) 
    by sizeof(int).  Since arrays  start from 0 and not 1 we 
    subtract one to get the last element.
    -yegor*/
int array[5] = { 1, 2, 3, 4, 5 };
printf("Last Element of Array: %d", array[(sizeof(array)/sizeof(int))-1]);

C++ access second last element of vector

arr2.rbegin()[1] // rbegin() is reverse order starting at 0 for last element, 1 for second-last

Source: stackoverflow.com

Similar codes

0 vote304 views2 answers
Sort using comparator anonymous function c++
C++
2 votes307 views2 answers
C++ convert int to cstring
C++
1 vote332 views1 answer
Find the graph is minimal spanig tree or not
C++
14 votes307 views2 answers
How to sort in descending order in c++
C++
4 votes292 views1 answer
Index from iterator c++
C++
1 vote327 views1 answer
How to take user input in a client server program in c++
C++
0 vote307 views1 answer
Set iterator
C++
0 vote303 views1 answer
C++ split string by several space
C++
1 vote354 views1 answer
Lpcwstr to string c++
C++
0 vote289 views1 answer
MPI_File_seek
C++