challenge0hn0.cpp

bool like0hn0(std::vector<std::vector<int>> grid) {
    for(int i = 0; i < grid.size(); i++)
        for(int j = 0; j < grid.size(); j++)
            if(grid[i][j != 0])
                if(!isValid(grid, i, j)) return false;
}

bool isValid(std::vector<std::vector<int>> grid, int i, int j) {
    
   int value = grid[i][j]; 
   int x = i;
    while(grid[x][j] != 0)
        if(--x > 0)
            value--;
    
     x = i;
    while(grid[x][j] != 0)
        if(++x < grid.size())
            value--;
     x = j;
    while(grid[i][x] != 0)
        if(--x > 0)
            value--;
    x = j;
    while(grid[i][x] != 0)
        if(++x <  grid.size())
            value--;
    
    return value == 0;
    
}