tcprstat is a free, open-source TCP analysis tool that watches networktraffic and computes the delay between requests and responses. Fromthis it derives response-time statistics and prints them out. Theoutput is similar to other Unix -stat tools
1.SURF: Speeded Up Robust Features" is a performant scale- and rotation-invariant interest point detector and descriptor.函數surf的作用:畫三維曲面(色)圖,起作用與mesh相似surf(X,Y,Z) X、Y、Z中Z通常是X,Y的函數,即Z(X,Y)。X、Y通常是通過調用meshgrid函數產生的資料格(具體參見meshgrid)。 surf(Z)
Cubic Eight-PuzzleTime Limit: 5000MS Memory Limit: 65536KTotal Submissions: 1344 Accepted: 451DescriptionLet’s play a puzzle using eight cubes placed on a 3 × 3 board leaving one empty square.Faces of cubes are painted with three colors. As a puzzle
http://codeforces.com/contest/336/problem/B One beautiful day Vasily the bear painted 2m circles of the same radiusR on a coordinate plane. Circles with numbers from1 tom had centers at points(2R - R, 0),(4R - R, 0), ..., (2Rm - R, 0), respectively.
example1(資料安裝失敗):Warning: date_default_timezone_get(): It is not safe to rely on the system’s timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods