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