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

0 vote278 views2 answers
C++ compile to msi
C++
0 vote270 views1 answer
How the theam are store in database
C++
0 vote271 views1 answer
Softwareegg.courses4u
C++
0 vote273 views1 answer
Linux x11 copy paste event
C++
0 vote270 views1 answer
C++ preprocessor commands
C++
1 vote286 views2 answers
Convert letters to uppercase in c++
C++
14 votes305 views6 answers
Cout c++
C++
0 vote269 views1 answer
C++ Greatest common divisor
C++
0 vote255 views1 answer
C++ while loop decrement
C++
0 vote327 views1 answer
Binpow in fenwick tree
C++