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ID Problem Show tags Hide tags AC / Tried Difficulty
909 E569  【基础】黑色星期五(friday) 1 / 2 10
1159 E820  【提高】谷仓的安保 3 / 11 9
1246 E906  【基础】愤怒的奶牛 12 / 22 6
1253 E913  【基础】探测池塘 1 / 1 10
1254 E914  【基础】相似的奶牛 0 / 0 (None)
1255 E915  【基础】数字三角形 0 / 0 (None)
1256 E916  【基础】麦香牛肉 1 / 1 10
1262 E922  【提高】立方体积木Cube Stacking 0 / 0 (None)
1265 E925  【基础】最短网络 Agri-Net(USACO3.1) 1 / 6 10
1267 E927  【基础】Out of Hay S[USACO05MAR] 0 / 0 (None)
1273 E933  【基础】贪婪的送礼者Greedy Gift Givers(USACO1.1) 0 / 0 (None)
1274 E934  【基础】回文平方数 Palindromic Squares 2 / 4 10
1275 E935  【基础】双重回文数 Dual Palindromes 1 / 1 10
1276 E936  【基础】混合牛奶 Mixing Milk 1 / 1 10
1277 E937  【基础】修理牛棚 Barn Repair 1 / 1 10
1278 E938  【提高】回文质数 Prime Palindromes 1 / 6 10
1279 E939  【基础】特殊的质数肋骨 Superprime Rib 4 / 22 9
1280 E940  【基础】集合 Subset Sums 0 / 0 (None)
1427 E1089  【基础】回家 Bessie Come Home 0 / 0 (None)
6869 USACO1017  1.5.1 [IOI1994]数字三角形 Number Triangles 1 / 1 10
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