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Just another update

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Ingy döt Net 2015-02-20 00:35:01 -05:00
parent a25938f123
commit 00a190b0a6
6591 changed files with 94363 additions and 23227 deletions
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16
Task/Huffman-coding/D/huffman-coding.d
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@ -1,21 +1,21 @@
import std.stdio, std.algorithm, std.typecons, std.container,std.array;
import std.stdio, std.algorithm, std.typecons, std.container, std.array;
auto encode(T)(Group!("a == b", T[]) sf) {
auto encode(alias eq, R)(Group!(eq, R) sf) /*pure nothrow @safe*/ {
auto heap = sf.map!(s => tuple(s[1], [tuple(s[0], "")]))
.array.heapify!q{b < a};
while (heap.length > 1) {
auto lo = heap.front; heap.removeFront;
auto hi = heap.front; heap.removeFront;
foreach (ref pair; lo[1]) pair[1] = '0' ~ pair[1];
foreach (ref pair; hi[1]) pair[1] = '1' ~ pair[1];
lo[1].each!((ref pair) => pair[1] = '0' ~ pair[1]);
hi[1].each!((ref pair) => pair[1] = '1' ~ pair[1]);
heap.insert(tuple(lo[0] + hi[0], lo[1] ~ hi[1]));
}
return heap.front[1].schwartzSort!q{tuple(a[1].length, a[0])};
return heap.front[1].schwartzSort!q{ tuple(a[1].length, a[0]) };
}
void main() {
auto s = "this is an example for huffman encoding"d;
foreach (p; s.dup.sort().release.group.encode)
void main() /*@safe*/ {
immutable s = "this is an example for huffman encoding"d;
foreach (const p; s.dup.sort().group.encode)
writefln("'%s' %s", p[]);
}