September 2017 Update

Task/Zig-zag-matrix/Sidef/zig-zag-matrix.sidef

@@ -1,24 +1,21 @@
 func zig_zag(w, h) {
 
-    var r = [];
-    var n = 0;
+    var r = []
+    var n = 0
 
     h.of { |e|
         w.of { |f|
-            [e-1, f-1]
+            [e, f]
         }
-    } \
-    -> reduce('+') \
-    -> sort { |a, b|
+    }.reduce('+').sort { |a, b|
            (a[0]+a[1] <=> b[0]+b[1]) ||
            (a[0]+a[1] -> is_even ? a[0]<=>b[0]
                                  : a[1]<=>b[1])
-    } \
-    -> each { |a|
-       r[a[1]][a[0]] = n++;
+    }.each { |a|
+       r[a[1]][a[0]] = n++
     }
 
-    return r;
+    return r
 }
 
-zig_zag(5, 5).each {say .join('', {|i| "%4i" % i})};
+zig_zag(5, 5).each { say .join('', {|i| "%4i" % i}) }