On Tuesday, 30 May 2017 at 18:05:02 UTC, cym13 wrote:
On Tuesday, 30 May 2017 at 17:57:04 UTC, Lyle wrote:
Hi,
I have an associative array of type int[ulong] and I'm trying
to get the index of the maximum value, like this:
int[ulong] aa = [1UL: 2000,
2UL: 5000,
5UL: 1000];
writeln(aa.maxIndex); // should print 2
Can anyone help me out?
Many thanks,
Lyle
Simple enough: get all key/values pairs in the AA, and ask for
the element which is the maximum relatively to the value, then
take its key.
auto maxIndex(int[ulong] aa) {
import std.algorithm;
return aa.byKeyValue
.maxElement!(x => x.value)
.key;
}
Thank you! I used this solution in the end. I had looked at the
.byKeyValue and .byPair methods but they didn't seem to work -
turns out I was using an old DMD version!
