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 vote251 views1 answer
C++ caps lock key
C++
0 vote265 views1 answer
Json::iterator c++
C++
0 vote237 views1 answer
Distructor of the node of the link list
C++
0 vote233 views2 answers
Find a member variable in a vector of objects cpp
C++
0 vote244 views1 answer
What algorithm does bitcoin use
C++
1 vote254 views1 answer
Collections c# vs c++
C++
19 votes269 views1 answer
How to output to a file in c++
C++
1 vote235 views1 answer
C++ random number 0 to 1
C++
5 votes273 views2 answers
Delete specific row from dynamic 2d array c++
C++
0 vote277 views1 answer
What does npl mean?
C++