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

10 votes120 views3 answers
What is pi
C++
1 vote126 views1 answer
How to return 2d array from function c++
C++
0 vote153 views1 answer
Initialize a vector with another vector c++ complexity
C++
1 vote125 views1 answer
Doubly linked list c++ code
C++
70 votes185 views5 answers
Erase element from vector c++
C++
-1 vote126 views1 answer
String array 2d c++
C++
0 vote167 views1 answer
How to traverse through vector pair
C++
3 votes130 views4 answers
String c++
C++
-1 vote126 views1 answer
Transformer in nlp
C++
1 vote122 views1 answer
Const char to string
C++