On Monday, 25 May 2015 at 17:19:27 UTC, Meta wrote:
`each` doesn't support braces. There are 4 ways to write a
function/delegate literal in D (with a few minor variations):
Short form:
function(int i) => i;
(int i) => i
(i) => i
i => i
Long form:
function(int i) { return i; }
(int i) { return i; }
(i) { return i; }
{ return 0; }
http://dlang.org/expression.html#FunctionLiteral
function
Thanks.
But why is the solution breaks down when `s = 10000` ? :)
import std.stdio, std.algorithm, std.range;
int c;
const x = 12, y = 65, z = 50, s = 100000;
void solve(Range)(Range r) {
cartesianProduct(r, r, r).filter!(i => i[0] * (y + 3 * z) + i[1]
* (y + 2 * z) + i[2] * (y + z) == s).each!dout;
}
void main() {
auto a = iota(0, x + 1).array;
solve(a);
writefln(`%s total`, c);
}
void dout(Tuple)(Tuple idx) {
++c;
}
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http://rextester.com/XGDL26042
