Passing array (not slice) as parameter.

current/algorithms/numbers-zig/numbers2.zig

@@ -0,0 +1,45 @@
+const std = @import("std");
+const print = std.debug.print;
+const expect = std.testing.expect;
+
+test "simple partition #1" {
+    var arr = [_]u64{1,3,5};
+    const res = bipartition(&arr, 0, @as(u64, arr.len-1), 2);
+    std.log.warn("Res {}", .{res});
+    try expect(res == 1);
+}
+
+pub fn bipartition(arr: []const u64, t1: u64, t2: u64, v: u64) u64 {
+    std.log.warn("Arr called with {}, {}, {}", .{t1, t2, v});
+    var x1:u64 = t1;
+    var x2:u64 = t2;
+    var x:u64 = undefined;
+
+    if (arr.len <= 0) {
+        return x1;
+    }
+
+    if (v < arr[x1]) {
+        return x1;
+    }
+
+    if (v >= arr[t2]) {
+        return t2 + 1;
+    }
+
+    while (x1 < x2 - 1) {
+        std.log.warn("Round {},{}", .{t1, t2});
+        x = (x1 + x2) / 2;
+        if (arr[x] < v) {
+            x1 = x;
+        } else {
+            x2 = x;
+        }
+    }
+
+    return x2;
+}
+
+pub fn main() !void {
+    print("Hello World {}!!!\n", .{1});
+}