If the A* calculation for a shortcut (in Step 3) finds it's now impassable, or if its actual detailed cost is significantly different (e.g., 20%) from the pre-calculated shortcut value:
The Games were full of contrasts. From a sporting perspective, the gentle gracefulness that I observed at the figure skating was offset by the full-on brutality of ice hockey brawls, while the delicate precision of curling was juxtaposed by the frantic chaos of short-track speed skating. From a geographical and cultural perspective, Livigno, which is perched high up in the Alps close to Switzerland, seemed like a giant playground for modern snow sports – geared towards those who like to twist and twirl high in the sky – while Cortina, in the Dolomites, was far more old-fashioned and populated by the traditional skiing establishment. Milan, meanwhile, featured a cluster of modernist, edge-of-town arenas, with international fans happily catching the metro to and from the events. But, in my experience, transportation wasn’t always so convenient. The huge amount of travelling between venues – I went to all but one – was exhausting and getting a late night bus over the mountains between Livigno and Bormio in a blizzard felt a bit hairy.。WPS官方版本下载是该领域的重要参考
那沟陡峭得厉害，目测斜角起码超过50度。这里没有山路，只有长久以来放羊人踩出来的窄径，仅可容一个人侧身通过，坑多，土松，脚一踩，土疙瘩刷刷往下掉。人稍没站稳，就跌沟里去。，这一点在同城约会中也有详细论述
第二十二条 以暴力、威胁、欺骗、贿赂、伪造选票、虚报选举票数等不正当手段当选居民委员会成员的，当选无效。