def test_contest():
eq(_.contest(433), {
"name": "Codeforces Round #248 (Div. 2)",
"problems": [
("A", "Kitahara Haruki's Gift"),
("B", "Kuriyama Mirai's Stones"),
("C", "Ryouko's Memory Note"),
("D", "Nanami's Digital Board"),
("E", "Tachibana Kanade's Tofu"),
],
})
eq(_.contest(1000), None)
eq(_.contest(0), None)