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//一本通矢量的矢量积练习1 // -→ -→ -→ -→ //题意：给定两个有公共端点的矢量p0p1 和 p0p2，判断p0p1是否在p0p2的顺时针方向 //p1*p2=det[x1 x2] // [y1 y2] // =x1y2-x2y1 // ... 阅读全文
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Description Calculate the number of toys that land in each bin of a partitioned toy box. Mom and dad have a problem - their child John never puts his 阅读全文
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Area in Triangle Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 1674 Accepted: 821 Description Given a triangle field and a rope of a cert 阅读全文
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Give you two circles and a rectangle, your task is to judge wheather the two circles can be put into the rectangle with no part of circles outside the 阅读全文