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坑爹到精度问题//By Lin AC的方法 while ( fabs(g-h)>1e-2 ) { mid = (g+h)/2; if ( pan(mid) ){ g = mid; }else h = mid; } printf("%.0f\n" , mid ); WA的方法 while ( fabs(g-h)>1e-2 ) { mid = (g+h)/2; if ( pan(mid) ){ g = mid; ans = mid; }else h = mid; } printf("%.0f\n" , ans ); 明显第二个比第一个更接近精确值,但是确实WA。。。 强烈认为这些问题要special judge。。。不然比标程精确你就哭把 Followed by:
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