22 lines
605 B
Zig
22 lines
605 B
Zig
const std = @import("std");
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pub fn main() anyerror!void {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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const stdin = std.io.bufferedReader(std.io.getStdIn().reader()).reader();
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const stdout = std.io.getStdOut().writer();
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const key = "ICE";
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const input = try stdin.readAllAlloc(allocator, 4096);
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defer allocator.free(input);
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var i: usize = 0;
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for (input) |*char| {
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char.* ^= key[i];
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i = (i + 1) % key.len;
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}
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try stdout.print("{s}\n", .{std.fmt.fmtSliceHexLower(input)});
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}
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