Question

Var k, m, n: integer;
Dat: array[1..10] of integer;
Begin
Dat[1] := 7; Dat[2] := 9;
Dat[3] := 10; Dat[4] := 5;
Dat[5] := 6; Dat[6] := 7;
Dat[7] := 9; Dat[8] := 10;
Dat[9] := 6; Dat[10] := 9;
m := 0; n := 0;
for k := 1 to 10 do
if Dat[k] >= m then
begin
m := Dat[k]; n := k
end;
writeln(n)
End.
Помогите решить с пояснением