Length of 2d array c++

How to find 2d vector length cpp

myVector[
  Vector[0, 4, 2, 5],
  Vector[1, 4, 2]
];

/*When you call for myVector[1].size() it would return 3 and [0] would return 4.

For the amount of rows (int vectors) in the 2d vector, you can just use myVector.size()

You can run this to see it in actions*/

Source: stackoverflow.com

Length of 2d array c++

int rows = sizeof(arr) / sizeof(arr[0]); // returns rows
int col = sizeof(arr[0]) / sizeof(int); // returns col

Size of a matrix c++

std::vector< std::vector<int> > my_array; /* 2D Array */

my_array.size(); /* size of y */
my_array[0].size(); /* size of x */

Source: stackoverflow.com

Similar codes

1 vote235 views3 answers
Print 2d array c++
C++
0 vote247 views1 answer
No indentation latex
C++
0 vote271 views1 answer
Ex: java script
C++
0 vote234 views1 answer
Powers of 2 in cpp
C++
-1 vote226 views2 answers
Run cpp code
C++
0 vote248 views1 answer
C++ calorie calculator using a for loop
C++
3 votes248 views1 answer
Map declaration c++
C++
1 vote246 views1 answer
C++ keyboard input
C++
6 votes191 views1 answer
Rng cpp
C++
0 vote260 views1 answer
Cpp full form
C++