有100道题的。都是希望杯的(也算奥数)
http://www.jyeoo.com/math3/report/detail/1343d65f-d126-425a-8175-baf5fc6705b5
http://wenku.baidu.com/link?url=jWexouw7sIbpsLkBIpvQu818WCOXwcbWciGPLW-zdxIkz4sw_ZXDKYyPjKL2NnvedwjYkp7fCnBvsT0okL88ynTgpbkJ9Y9sbhNfHA476Ny
http://wenku.baidu.com/link?url=ntn6U-cDoCbS3sqbBDz81S2ndU-jbFusvLa5LzCyG-Ov9za1lAtBQ7Q3XZNDFmLlEa74jE1oWU8wVgEYnRUvIBfQwp6QrqFIy5MOZjrPQ1i
图呢