- Added guest contribution by Robert DiCicco.

1 files changed, 127 insertions, 0 deletions

diff --git a/challenge-218/robert-dicicco/julia/ch-2.jl b/challenge-218/robert-dicicco/julia/ch-2.jl
new file mode 100644
index 0000000000..25003b78cb
--- /dev/null
+++ b/challenge-218/robert-dicicco/julia/ch-2.jl
@@ -0,0 +1,127 @@
+#!/usr/bin/env julia
+#---------------------------------------------
+# AUTHOR: Robert DiCicco
+# DATE  : 2023-05-27
+# Challenge 218 MatrixScore.py ( Julia )
+#---------------------------------------------
+using Printf
+
+matrix = [ [0,0,1,1],
+           [1,0,1,0],
+           [1,1,0,0], ]
+
+function ToggleRow(r, ov)
+    testmat = []
+    col = 1
+    while col < 5
+        x = matrix[r][col]
+        if x == 0
+            push!(testmat,1)
+        else
+            push!(testmat,0)
+        end
+        col += 1
+    end
+    testval = binary_to_decimal(testmat)
+    if testval > ov
+        @printf("\nToggled row %d\n",r)
+        matrix[r] = testmat
+        ShowMatrix()
+    end
+end
+
+function ToggleCol(c)
+    ov = GetColVal(c);
+    row = 1;
+    testmat = [];
+    testval = 0;
+    while row <= 3
+        matrix[row][c] == 0 ? push!(testmat,1) : push!(testmat,0)
+        row += 1
+    end
+    testval = binary_to_decimal(testmat);
+    if testval > ov
+        for x in (1:3)
+            matrix[x][c] = testmat[x]
+        end
+        @printf("Toggled column %d\n",c);
+        ShowMatrix();
+    end
+end
+
+
+function binary_to_decimal(binary_array)
+    decimal = 0
+    power = length(binary_array) - 1
+    for digit in binary_array
+        decimal += digit * ( 2 ^ power)
+        power -= 1
+    end
+    return decimal
+end
+
+function ShowMatrix()
+    total = 0
+    cnt = 1
+    while cnt <= 3
+        @printf("%s\n",matrix[cnt])
+        total += binary_to_decimal(matrix[cnt])
+        cnt += 1
+    end
+    @printf("Total = %d\n\n",total)
+end
+
+function GetColVal(c)
+    testmat = []
+    row = 1
+    while row <= 3
+        push!(testmat,matrix[row][c])
+        row += 1
+    end
+    colval = binary_to_decimal(testmat)
+    return colval
+end
+
+ShowMatrix()
+for myrow in (1:3)
+    bd = binary_to_decimal(matrix[myrow])
+    ToggleRow(myrow,bd)
+end
+
+
+for mycol in (1:4)
+    ToggleCol(mycol)
+end
+
+#=
+#---------------------------------------------
+SAMPLE OUTPUT
+julia .\MatrixScore.jl
+
+[0, 0, 1, 1]
+[1, 0, 1, 0]
+[1, 1, 0, 0]
+Total = 25
+
+Toggled row 1
+[1, 1, 0, 0]
+[1, 0, 1, 0]
+[1, 1, 0, 0]
+Total = 34
+
+Toggled column 3
+[1, 1, 1, 0]
+[1, 0, 0, 0]
+[1, 1, 1, 0]
+Total = 36
+
+Toggled column 4
+[1, 1, 1, 1]
+[1, 0, 0, 1]
+[1, 1, 1, 1]
+Total = 39
+
+#---------------------------------------------
+=#
+
+