✅ Struggling to use custom comparer with a list of KeyValuePairs

IComparer<KeyValuePair<float, int>> comp = Comparer<KeyValuePair<float, int>>.Create((a, b) => a.Key < b.Key ? 1 : 0);
List<KeyValuePair<float, int>> li = [
    new(1f, 1),
    new(1.5f, 2),
    new(2.5f, 3),
    new(0.5f, 4),
    new(0.2f, 5)
    ];
li.Sort(comp);

foreach (var kvp in li)
    Console.WriteLine(kvp.Key + ", " + kvp.Value);

1, 1
1.5, 2
2.5, 3
0.5, 4
0.2, 5