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Ingy döt Net 2013-10-27 22:24:23 +00:00
parent 6f050a029e
commit 776bba907c
3887 changed files with 59894 additions and 7280 deletions
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13
Task/Symmetric-difference/D/symmetric-difference.d
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@ -3,22 +3,23 @@ import std.stdio, std.algorithm, std.array;
struct Set(T) {
immutable T[] items;
Set opSub(in Set other) const /*pure nothrow*/ {
return Set(array(filter!(a=> !canFind(other.items,a))(items)));
Set opSub(in Set other) const pure nothrow {
return items.filter!(x => !other.items.canFind(x)).array.Set;
}
Set opAdd(in Set other) const /*pure nothrow*/ {
Set opAdd(in Set other) const pure nothrow {
return Set(this.items ~ (other - this).items);
}
}
Set!T symmetricDifference(T)(in Set!T left, in Set!T right) {
Set!T symmetricDifference(T)(in Set!T left, in Set!T right)
pure nothrow {
return (left - right) + (right - left);
}
void main() {
immutable A = Set!string(["John", "Bob", "Mary", "Serena"]);
immutable B = Set!string(["Jim", "Mary", "John", "Bob"]);
immutable A = ["John", "Bob", "Mary", "Serena"].Set!string;
immutable B = ["Jim", "Mary", "John", "Bob"].Set!string;
writeln(" A\\B: ", (A - B).items);
writeln(" B\\A: ", (B - A).items);