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const std = @import("std");
const mem = std.mem;
const testing = std.testing;
pub fn sort(comptime T: type, arr: []T) void {
for (0..arr.len - 1) |i| {
var min = i;
for (i + 1..arr.len) |j| {
if (arr[min] > arr[j]) {
min = j;
}
}
mem.swap(T, &arr[i], &arr[min]);
}
}
test "selection sort test" {
var arr = [_]i64{ 20, 3, 5, 1, 30, 4, 2 };
sort(i64, &arr);
const expected = [_]i64{ 1, 2, 3, 4, 5, 20, 30 };
try testing.expectEqual(expected, arr);
}
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