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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
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23
Task/Averages-Arithmetic-mean/D/averages-arithmetic-mean-1.d Normal file
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real mean(Range)(Range r) pure nothrow @nogc {
real sum = 0.0;
int count;
foreach (item; r) {
sum += item;
count++;
}
if (count == 0)
return 0.0;
else
return sum / count;
}
void main() {
import std.stdio;
int[] data;
writeln("Mean: ", data.mean);
data = [3, 1, 4, 1, 5, 9];
writeln("Mean: ", data.mean);
}

10
Task/Averages-Arithmetic-mean/D/averages-arithmetic-mean-2.d Normal file
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import std.stdio, std.algorithm, std.range;
real mean(Range)(Range r) pure nothrow @nogc {
return r.sum / max(1.0L, r.count);
}
void main() {
writeln("Mean: ", (int[]).init.mean);
writeln("Mean: ", [3, 1, 4, 1, 5, 9].mean);
}

14
Task/Averages-Arithmetic-mean/D/averages-arithmetic-mean-3.d Normal file
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import std.stdio, std.conv, std.algorithm, std.math, std.traits;
CommonType!(T, real) mean(T)(T[] n ...) if (isNumeric!T) {
alias E = CommonType!(T, real);
auto num = n.dup;
num.schwartzSort!(abs, "a > b");
return num.map!(to!E).sum(0.0L) / max(1, num.length);
}
void main() {
writefln("%8.5f", mean((int[]).init));
writefln("%8.5f", mean( 0, 3, 1, 4, 1, 5, 9, 0));
writefln("%8.5f", mean([-1e20, 3, 1, 4, 1, 5, 9, 1e20]));
}