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

2 votes366 views1 answer
Conditional cout in c++
C++
2 votes336 views2 answers
Qt qstring to float
C++
0 vote319 views2 answers
Opencv combine video
C++
0 vote311 views1 answer
Is variable sized array are not allowed in c++?
C++
0 vote321 views1 answer
Give an algorithm for finding the ith-to-last node in a singly linked list in which the last node is indicated by a null next reference.
C++
0 vote342 views1 answer
Qrandomgenerator bounded
C++
3 votes392 views3 answers
Largest Subarray with Zero Sum
C++
0 vote315 views1 answer
Lua table contains
C++
-1 vote296 views1 answer
How to insert all values from one vector to another
C++
0 vote305 views1 answer
Why return 0 in int main
C++