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

4 votes173 views2 answers
C++ stream string into fiel
C++
1 vote202 views1 answer
Vector of vectors c++
C++
0 vote185 views1 answer
Cube mapping sdl
C++
0 vote212 views1 answer
Is variable sized array are not allowed in c++?
C++
0 vote202 views1 answer
. The cout with the insertion operator (<<) is used to print a statement
C++
0 vote186 views1 answer
Udo apt install dotnet-sdk-5
C++
3 votes191 views1 answer
C++ declaring and initializing strings
C++
-2 votes179 views1 answer
How to iterate through array in c++
C++
19 votes177 views1 answer
Access last element in vector in c++
C++
0 vote199 views1 answer
Split 2d array into chunks in c++
C++