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1. Experimental requirementsRandomly produces an array of two-dimensional shapes, with positive numbers in the array and negative values.A two-dimensional array is connected to the end of the line, like a belt.One or more consecutive integers in an array make up a sub-array, each of which has a and.The maximum value for the and of all sub-arrays.2. Experimental ideasFirst, a two-dimensional array is generated randomly;The first column of a two-dimensional array is moved to the last column, and t

more classic and safe, here also introduces a top method: Top K or Q, Benefits 1 This is a kind of neutralization choice, which takes care of the possibility of the landlord having a leaflet and does not make the companion to pick up the card. 2 in this case, if the landlord a,k to take apart the card, then use a high top can be closed to the dead landlord to open the leaflet (a kind of active diversion of the taste), but looking back at this kind of hand, the various probability gap is very li

not what leakage recruit, at the same time top A is more classic and safe, here also introduce a top method: Top K or Q, Benefit 1 It is a neutral choice to take care of the possibility of the landlord having a single sheet and not to be troubled when the companion is in the cards. 2 in this case, if the landlord A,k open the card, and then use a high top can shut down the landlord to open the leaflet (a kind of active to contain the taste), but look back to this hand of the re-disk, the probab

The first part of the description: 1 put the big cycle into the internal test, the small cycle put on the outside, can indeed improve efficiency /*** Comprehensively test the performance of nested multi-layer for loops.** @ Author laozizhu.com)**/Public class testforloop {Public static void main (string [] ARGs ){Int small = 1;Int middle = 1000;Int large = 1000000;// The large loop is outside, the small loop is inside, and the variable is generated each time.Long T = system. currenttimemillis ()

Efficiency can be compared with MATLAB int m; int i, j, k; double r; double *A, *B, *C; m = 1000; A = new double[m*m]; B = new double[m*m]; C = new double[m*m]; //置初值 for (i=0; i A[i] = 1; B[i] = 1; C[i] = 0; } int bf; // blocking factor int jj, kk, im; int minj, mink; bf = 48; // 可以修改 for (jj=0; jj for (

(400*600,1 ); % Traverse the region [-;-30: 30]. If the vertex meets the condition, the value is stored. For II =; For JJ =-30: 0.1: 30; If (ABS (root1 (II + I * JJ) ABS (root2 (II + I * JJ) Result (t) = II + I * JJ; T = t + 1; End End End Plot (result ,'.') TOC running result: elapsed time is 86.485000 seconds. M-fi

> b1> b2> b2;If (flag1 | flag2) continue;If (a [b1-'a'] [b2-'a'] = 0){A [b1-'a'] [b2-'a'] = 1;// Calculate the topological sortingToposort ();}++ Count;}// The firstIf (flag1)Cout Else if (flag2)Cout ElseCout }System ("pause ");Return 0;}Void toposort (){Int * ind = new int [n];Memset (ind, 0, sizeof (int) * n );// Calculate the inbound and outbound trafficFor (int I = 0; I For (int j = 0; j If (a [I] [j] = 1)Ind [j] ++;For (int I = 0; I {// Point with an inbound value of 0Int t =-1;For (int j =

format if it is YYYYMMDD, note that the letter Y can not capitalize. * * @param Sformat * YYYYMMDDHHMMSS * @return */ public static string Getuserdate (String sformat) { Date currenttime = new Date (); SimpleDateFormat formatter = new SimpleDateFormat (Sformat); String datestring = Formatter.format (currenttime); return datestring; } /** * Two hours between the difference, you must ensure that two times are "hh:mm" format, return character of the minute */ public static string Gettwohour (Stri