I need to overwrite values in a 2D vector, where the new values is simply just equal to an integer I am counting up. But as soon as I exit this if-statement, the value resets to the original value? I think it may have something to do with the indexing, but I just can’t figure ..
Category : 2d-vector
I am trying to create a 10 by 10 grid with uint8_t values. using some coordinates I am trying to place 255 values at those indexes. When I substitute 255 at those coordinates it works fine but as soon as I try to print out the values at those indexes it doesn’t seem to be ..
I was creating empty 2D vector in a header file by just providing size but unable to create it. class Grid { public: int rows = 5/0.05; int cols = 6/0.05; std::vector<std::vector<uint8_t>> grid(rows, std::vector<uint8_t>(cols, 0)); }; I am getting below error no matching function for call to ‘std::vector<std::vector >::vector(int&, std::vector)’ error: ‘rows’ is not a ..
I have a 2D vector of Integer and want to count how many times certain value is repeated. For example: I have myvector defined as: std :: vector <std :: vector <int>> myVector {{{1, 2, 9, 4, 6}, {8, 3, 5, 4, 8}, {4, 1, 9, 1, 7}, {5, 2, 7, 3, 4}, {7, 4, ..
I have a simple ball class. It takes a color name for its initialization. Ball::Ball(ColorName color_name) : m_color_name{color_name} { } I try to create a 2d-vector board to contain some balls. The width and the height are given outside. class Board { private: int m_width; int m_height; std::vector<std::vector<Ball>> m_grids; public: Board(int width, int height); ~Board(); ..
I am trying to take values in a 2d vector called alloc from the user but the alloc zero index is the only changed index and the values of each index override it i don’t know why (i.e: only the first index of the 2d vector is affected) Code: cout<<"Please Enter n"<<endl; cin>>n; cout<<"Please Enter ..
I have a vector a strings, witch is basically a grid. vector<string> tempo(0); bla blooper vroom yahoo i would like iterate the columns and i forgot how. not all of the string are of the same length. the end result should be a new vector of strings: bbvy llra aooh ooo pmo e r how ..
I am trying to create an adjacency list graph representation using a vector(V) of vectors(v). My goal is for every new vertex value entered, I increment the size of the V*, and insert the new value into the open spot, which would then be the starting value of v**. I then want to create an ..
let’s say I have a vector storing vectors of strings. std::vector<std::vector<std::string>> MyVec = { {}, {} } I want to use anything equivalent to .push_back(X) such that the vector will now look as following: { {X}, {} }. Does anyone have an idea for a way to solve this? Source: Windows Que..
I am trying to read a file "chartIn.txt" that stores seats on a plane in the format: 1 A B C D 2 A B C D … I have read the file with method readChart() in the Plane class. It seams to read the file and store in 2d vector seatChart. When I enter ..
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