largest-product-in-grid.py

raw = "08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08 49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00 81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65 52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91 22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80 24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50 32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70 67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21 24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72 21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95 78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92 16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57 86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58 19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40 04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66 88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69 04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36 20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16 20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54 01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48"
grid = raw.split()

finGrid2020 = []
for i in range(0, len(grid), 20):
    finGrid2020.append(grid[i : (i + 20)])

finGrid2020 = [[int(num) for num in row] for row in finGrid2020]

def largestProdInGrid(grid, adj):
    products = []
    for i in range(len(grid)):
        pivLoc = 0
        locProds = []

        while pivLoc <= len(grid[i]) - adj + 1:
            rowAdjs = []
            colAdjs = []
            LDiagAdjs = []
            RDiagAdjs = []

            for j in range(adj):
                if pivLoc + j <= len(grid[i]) - adj + 1:
                    if grid[i][pivLoc + j] != 0:
                        rowAdjs.append(grid[i][pivLoc + j])
                    else:
                        break
                else:
                    break

            for k in range(adj):
                if i + j <= len(grid) - adj + 1:
                    if grid[i + k][pivLoc] != 0:
                        colAdjs.append(grid[i + k][pivLoc])
                    else:
                        break
                else:
                    break

                
            for l in range(adj):
                if i + l <= len(grid) - adj + 1 and pivLoc - adj + 1 >= 0:
                    if grid[i + l][pivLoc - l] != 0:
                        LDiagAdjs.append(grid[i + l][pivLoc - l])
                    else:
                        break
                else:
                    break

            for m in range(adj):
                if i + m <= len(grid) - adj + 1 and len(grid[m]) - pivLoc >= adj:
                    if grid[i + m][pivLoc + m] != 0:
                        RDiagAdjs.append(grid[i + m][pivLoc + m])
                    else:
                        break   
                else:
                    break

            pivLoc += 1

            # print("row: ", rowAdjs)
            # print("col: ", colAdjs)
            # print("left diag: ", LDiagAdjs)
            # print("right diag: ", RDiagAdjs)

            locRProd = 1
            locCProd = 1
            locLDProd = 1
            locRDProd = 1

            if len(rowAdjs) == adj:
                for num in rowAdjs:
                    locRProd *= num
                locProds.append(locRProd)
            
            if len(colAdjs) == adj:
                for num in colAdjs:
                    locCProd *= num
                locProds.append(locCProd)
            
            if len(LDiagAdjs) == adj:
                for num in LDiagAdjs:
                    locLDProd *= num
                locProds.append(locLDProd)

            if len(RDiagAdjs) == adj:
                for num in RDiagAdjs:
                    locRDProd *= num
                locProds.append(locRDProd)
        
        products.append(max(locProds))
    
    return(max(products))

print(largestProdInGrid(finGrid2020, 4))

# print(largestProdInGrid([[1, 2, 4], [9, 3, 6], [9, 4, 7]], 2))