GDB commands I use (not to be continued, add at any time)

gdb is used for debugging programs. gdb Debugger, First you need to use gcc or g++ compiler, but need to add a -g parameters, such as min.c Program gcc Min.c-o min after compilation, gdb min to run the debugger will not work properly.

Dynamic SQL (Learning notes)

Dynamic SQLEXECUTE IMMEDIATE Dynamic SQL string [BUCK COLLECT] into custom variable, | record typeUSING [In | Out| In out] binding parameters[Returning | RETURN][bulk Collect]into Binding parametersExample 1--Enter employee information according to

Array for maximum, minimum, and, average learning notes

Package Com.ctgu.java.exer;public class TestArray3 {public static void main (string[] args) {int[] arr = new int[]{12,43,9,0 , -65,-99,100,9};int max = arr[0];for (int i = 1; i arr[i]) {min = Arr[i];}} SYSTEM.OUT.PRINTLN ("Array minimum is:" + min);

Array Elements Copy Learning notes

Tag:package   public    element     Package com.ctgu.java.exer;public class testarray {public static void main ( String[] args) {int[] array1,array2;array1 = new int[]{2,3,5,7,11,13,17,19};for (int  i = 0;i Array Elements Copy Learning notes

[Online lesson excerpt] 4. Demonstrate a scenario that causes ora-01555 errors

1 Creating an Undo table space 2 View current undo Configuration 3 The default undo table Space 4 Confirm configuration of Changes5 Creating a test table6 Analog Bulk Operations 7 query 2 minutes ago Data From here to when the query 2 minutes

Number of Spirals

#include void Main (){int i,j,k,n,count;int data[20][20]={0};printf ("Input An integer N:");scanf ("%d", &n);count=0;Count=n*n;for (k=0;k{for (i=k;iData[k][i]=++count;data[k][i]=count--;for (i=k+1;iData[i][n-k-1]=++count;data[i][n-k-1]=count--;for

Number of Rubik's Cube

#include #include void process (int b[10][10],int m){int i,j,k;I=0,J=M/2;B[i][j]=1;for (k=2;k{i--;j++;if ((i=m)) {i+=2;j--;}if (iif (j>=m) j=0;if (b[i][j]!=0) {i+=2;j--;}B[i][j]=k;}}void Main (){int i,j,n;static int a[10][10];printf ("Input

The connection problem of single case model

first read an article: An example of the Java code optimization processThe optimized part of this article for database connections is the use of the static Connection object, which allows all Jdbcutil objects in a JVM to share a connection. Many

Getting started with Scala-02 Basics--Method

First, under the SRC under main under Scala create a package for org.scala.base Create a Scala class name of HELLOWORLD.SCLA Because the main method is to be in the object, we create an object name called HelloWorld and add the main method and

Basic usage of enumerations

DK1.5 introduces a new type--enumeration. In Java , although it is a "small" function, but to my development has brought "big" convenience. Usage One: ConstantsBefore JDK1.5 , we defined constants: public static Fianl ..... Now, with enumerations,

[leetcode]155 Min Stack

https://oj.leetcode.com/problems/min-stack/http://blog.csdn.net/linhuanmars/article/details/41008731Class minstack {    public void push (int x)  {         data.push (x);        if  ( Min.empty ()  | |   (x [leetcode]155 Min Stack

[leetcode]160 intersection of the Linked Lists

https://oj.leetcode.com/problemset/algorithms/Http://www.cnblogs.com/yuzhangcmu/p/4128794.html/** * definition for singly-linked list. * public class listnode  { *     int val; *     ListNode  Next; *     listnode (int x)  { *          val = x; *    

Crontab Timing Task Detailed

Scheduled tasks are divided into 2 species:1. Exceptions: Perform the work according to a certain cycle, such as monthly salary, daily work report, daily need of punch, etc.2. Temporary: Specify the time to execute the order, this time do not have

[leetcode]162 Find Peak Element

https://oj.leetcode.com/problemset/algorithms/Http://siddontang.gitbooks.io/leetcode-solution/content/array/find_peak_element.htmlPublic class solution {    public int findpeakelement (int[]  NUM)  {                //

[leetcode]165 Compare Version Numbers

https://oj.leetcode.com/problems/compare-version-numbers/http://blog.csdn.net/u012243115/article/details/41969181Public class solution {    public int compareversion (String  Version1, string version2)  {        if  (version1  == null | |  version2 =

[leetcode]171 Excel Sheet Column number

https://oj.leetcode.com/problems/excel-sheet-column-number/Public class solution {    public int titletonumber (String s )  {                if   (s == null | |  s.isempty ())             return 0;   invalid input              

"Leetcode" N-queens II

N-queens IIFollow up for n-queens problem.Now, instead outputting board configurations and return the total number of distinct solutions.1 classSolution {2 Public:3 intTotalnqueens (intN) {4vectorint> Q (n,-1);5 intresult=0;6Getqueens (0

Through the desert.

This question is very famous, the code:#include "stdio.h"void Main (){FILE *FP;int i=1;Double X=500.0,s=1000.0,oil;Fp=fopen ("Data.dat", "w");Do{fprintf (FP, "no=%-7dcoord=%10.6f\toil=%11.6f\n", i,s-x,500.0*i);printf

[Leetcode] Excel Sheet Column Title

Given a positive integer, return its corresponding column title as appear in an Excel sheet.For example: 1, A 2, B 3, C ... AA, Z Credits:Special thanks to @ifanchu for adding this problem and creating all test cases.It is

High-precision multiplication

#include #include int main (){Char a[101],b[101];int i,j,k,cas,count=1,num2,num3;scanf ("%d", &cas);GetChar ();while (cas--){int c[100000]= {0};scanf ("%s%s", b);Num2=strlen (a);Num3=strlen (b);if (strcmp (A, "0") ==0| | strcmp (b, "0") ==0){printf (

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