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var t, m, n: longint; functi

[填空题]
var
  t, m, n: longint;
function g(m, n, x: longint):longint;
var
  i, ans:longint;
begin
  ans := 0;
  if (n = 1) then
    exit(1);
  for i:=x to m div n do
    ans := ans + g(m - i, n - 1, i);
  exit(ans);
end;
begin
  read(m, n);
  writeln(g(m, n, 0));
end.

输入:7 3
输出:1

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