diff options
| -rw-r--r-- | build.zig | 4 | ||||
| -rw-r--r-- | exercises/53_slices2.zig | 35 | ||||
| -rw-r--r-- | patches/patches/53_slices2.patch | 20 |
3 files changed, 59 insertions, 0 deletions
@@ -272,6 +272,10 @@ const exercises = [_]Exercise{ .main_file = "52_slices.zig", .output = "Hand1: A 4 K 8 Hand2: 5 2 Q J", }, + .{ + .main_file = "53_slices2.zig", + .output = "'all your base are belong to us.' 'for great justice.'", + }, }; /// Check the zig version to make sure it can compile the examples properly. diff --git a/exercises/53_slices2.zig b/exercises/53_slices2.zig new file mode 100644 index 0000000..2456d86 --- /dev/null +++ b/exercises/53_slices2.zig @@ -0,0 +1,35 @@ +// +// You are perhaps tempted to try slices on strings? They're arrays of +// u8 characters after all, right? Slices on strings work great. +// There's just one catch: don't forget that Zig string literals are +// immutable (const) values. So we need to change the type of slice +// from: +// +// var foo: []u8 = "foobar"[0..3]; +// +// to: +// +// var foo: []const u8 = "foobar"[0..3]; +// +// See if you can fix this Zero Wing-inspired phrase descrambler: +const std = @import("std"); + +pub fn main() void { + const scrambled = "great base for all your justice are belong to us"; + + const base1: []u8 = scrambled[15..23]; + const base2: []u8 = scrambled[6..10]; + const base3: []u8 = scrambled[32..]; + printPhrase(base1, base2, base3); + + const justice1: []u8 = scrambled[11..14]; + const justice2: []u8 = scrambled[0..5]; + const justice3: []u8 = scrambled[24..31]; + printPhrase(justice1, justice2, justice3); + + std.debug.print("\n", .{}); +} + +fn printPhrase(part1: []u8, part2: []u8, part3: []u8) void { + std.debug.print("'{s} {s} {s}.' ", .{part1, part2, part3}); +} diff --git a/patches/patches/53_slices2.patch b/patches/patches/53_slices2.patch new file mode 100644 index 0000000..f5403a2 --- /dev/null +++ b/patches/patches/53_slices2.patch @@ -0,0 +1,20 @@ +20,22c20,22 +< const base1: []u8 = scrambled[15..23]; +< const base2: []u8 = scrambled[6..10]; +< const base3: []u8 = scrambled[32..]; +--- +> const base1: []const u8 = scrambled[15..23]; +> const base2: []const u8 = scrambled[6..10]; +> const base3: []const u8 = scrambled[32..]; +25,27c25,27 +< const justice1: []u8 = scrambled[11..14]; +< const justice2: []u8 = scrambled[0..5]; +< const justice3: []u8 = scrambled[24..31]; +--- +> const justice1: []const u8 = scrambled[11..14]; +> const justice2: []const u8 = scrambled[0..5]; +> const justice3: []const u8 = scrambled[24..31]; +33c33 +< fn printPhrase(part1: []u8, part2: []u8, part3: []u8) void { +--- +> fn printPhrase(part1: []const u8, part2: []const u8, part3: []const u8) void { |