C++ :: Implementation Of Linear Programming Solver
Sep 17, 2013
I am trying to implement the linear programming solver. This is the header file of the linear programming solver :
/*!
internal
Representation of a LP constraint like:
(c1 * X1) + (c2 * X2) + ... = K
or <= K
or >= K
Where (ci, Xi) are the pairs in "variables" and K the real "constant".
*/
[Code] .....
I want to parse all the constraints and bounds as inputs and get the maximum value of the objective function as the output using the above lpsolver header file. I have also attached the sample file below.
my a book or website where I can make a transition from console programming to GUI programming. I'm totally confused about this. I know how to program in console and can make a whole program based on console. I also know the OPP programming, but it's clear that nobody uses console programming anymore.
Been trying for a while now to complete a physics degree first year computing task I've been assigned, which is to create a wordsearch solver to read to an array a wordsearch from a .txt file and find words in all directions (x+,x-y+ etc.).
I have a feeling the program is almost complete, but will stop looking for the word once the first character of the word has already come up. For example, if I'm searching for computer, and a c exists in an array element before it, the program will stop searching. I have included my code and the wordsearch file beneath.
Code:
#include <stdio.h>#include <stdlib.h> #include <math.h> #include <string.h> #include <ctype.h> //Used for the'toupper' functio int main() }
As it is known there are nine boxes and in each box we can put numbers 1-9 without repetition. I am trying to check a given filled Sudoku puzzle whether appropriate numbers are inserted in each of the nine boxes. For the time being I don't consider row repetition and column repetition. I wrote the code using loops and condition
I used 9*9 text-boxes. The names of the textboxes is sequential like for example for the first box txt11,txt12,txt13 txt14,txt15,txt16 txt17,txt18,txt19
Actually, I used also the controls id to access the text boxes, and each box is checking with the neighboring boxes for equality both in forward -> and backward <-
image
So here is the code
public void BoxCheck() { int start = 82, end = 74; int i, b, f; for (int p = 1; p <= 9; p++, start -= 9, end -= 9) { richTextBox1.AppendText("Box " + 1);
[Code] ....
This works pretty fine, but is is the right way to do it? it is efficient? Remember for a full checking I have to include row check and column check as well, this is just for checking within each of the 9 boxes in Sudoku.
I'm working on a maze solving program. So far I got the program to solve a maze using the recursive backtracking algorithm. I represent the maze as vector<vector<Square>> where Square is an enum that contains the kind of square (empty, wall, etc.). I use a class Point that contains 2 ints which are used for subscripting the vector of vectors. I have a Point begin and Point end. Now I want the program to solve the maze using the shortest path. I can either use the A* algorithm, Dijkstra's algorithm, or the breadth first search algorithm.
So, I successfully made a program that will perform the quadratic equation on three numbers, imaginary or real. however, i am now trying to simplify the result, as to get rid of the "/2a" on the bottom. Hence the simplify() function. I just started to create the simplification function, and am attempting to divide the imaginary part of the solution as well as the real part of the solution by 2a. Somehow, it gives the error, "error:invalid operands of types 'int' and 'double *' to binary 'operator*'" on lines 105 and 106. I suspect it has to do with the pointers and references that i am passing as parameters. Also, just an aside, I have never actually seen "/=" be used. It can be, right? I know "+=" can be.
#include <iostream> #include <string> #include <cmath> #include <cstdlib>//simplify the answer using namespace std; int count=0; //prototyping double ans_1(double,double,double);
#include <iostream> #include <stack> using namespace std; struct valpos//structure which carries information about the position of the cell and its value { int val; int row; int col;
I am creating a sudoku solver/generator. I have 81 text boxes on the form. I want the form to automatically clean up the input, eliminating alpha characters, and values under 1 or over 10. Anyways I have this method written, but I really don't want to go through and type up a change method for each text box. Is there to write a method that fires when ANY text box is changed, and gets the string value from the changed text box?
I am trying to do single axis solar tracker with linear actuator /rtc/ UNO. I have already done with feedback sensor.
Now Here I am trying to without feedback. Linear actuator specification: 24v , 3.2mm/sec as speed , 600mm stoke.
Desired angle calculation: tracking start from 7am to 18PM, 11hours Assumed degree: 7AM as -45 deg , 12.30 as 0 degree and 18 pm as 45 degree. static float slope= 0.00227272727273; static float intercept=- 102.272727273;
[Code] ....
How can i put time here. Coding for calculating Ton time and solve above equation. below i posted my code . I need it has to be modified little bit. i need to implement ton time actuator here.
I need function takes desired and actual angle , where actuator try to move to its actual desired position.
Code below in arduino version
Code: double Desire_Degree; unsigned int TS; static float slope= 0.00227272727273; static float intercept=- 102.272727273; static int length; double Actual_Degree;
I'm trying to write a continuous linear linked list. But whenever I run my program and enter an option from my list, my switch statement gets highlighted in green and says "Thread 1: breakpoint 3.1. And then my program just stops. I'm wondering what part of the switch statement I've gotten wrong.
Here's my code. #include <iostream> using namespace std; struct node { int key; node *next; }; node *l; void print(node*list)
How to return a message saying that the value searched for is not found. We had to pull the data in from a .dat, i won't let me attach it as a .dat so I attached it as .txt. I know my it's sloppy. I usually clean up what I can once it is working properly.
#include <iostream> #include <iomanip> #include <fstream> #include <string> using namespace std; int ccnt; int size = 10;
I have a linear search algorithm set up to search through an array of class objects it works but the output does not match, when i search for a particluar name in the array the 1st and third values int the array are found but the second value is not found..
below is my code:
int linsearch(string val) { for (int j=0; j <= 3; j++) { if (player[j].getLastName()==val) return j ;
I am trying to write a code that solves a system of linear equations such as A*B=C. My system has a dimension equal to 1600. The matrix A cab be separated into 4 sub matrices and each can be handled by a different thread. I tried to solve this using the following code:
int main() { int count = 0; //Inputing matrix A ifstream matrix; matrix.open("example.txt");
[Code] ....
Although the above code gives the correct answer, the time needs to find the solution is bigger than that needed without using threads.
I'm attempting to insert items in my list in sorted order. I have accounted for if head is NULL, and if the item I'm trying to insert is less than head. But the problem occurs when I try to loop through until I find the item that is less than what I want to insert. In the while loop, the program just stops for some reason. Here is my code:
I'm not accessing memory that's not mine, I've made sure that current->next is a real node. I've been troubleshooting this for a couple of days, and I don't understand because it won't even get to the assigning part. It just stops after it goes through the while loop once, it won't go any further, no matter how many items I have in the list.
I currently have a file which allows inputs to record different transistor types. I then have the task of accessing this structure, find a certain manufacturer ID, and print the information about this particular transistor.
My problem is accessing the array to search through.
Here is my code:
Code: #include "stdio.h" const int IDLEN=30; //All constant values defined const int POLARITYLEN=3; const int MAXSTOCKITEMS=10; //First structure defined struct TransistorRec {
[Code]......
The errors I am currently getting are on line 54 'expected primary-expression before "struct"' and on line 60 ' 'maunfacturersID' undeclared'
I am using the gnu glpk library to calculate a linear program for my matrices. Why I get the error message exit code 3 which apparently means "The system cannot find the path specified"?
How to approach this? Not very clear on how hashing works..
Insert the following numbers into a hash table of size 10 (ie an array with 0…9 index position) using a hash function h(k)=(k*71+94)%10 and using Linear Probing.
75, 98, 43,1,-56,93,101,34,23
Insert the following numbers into a hash table of size 10 (ie an array with 0…9 index position) using a hash function h(k)=(k*71+94)%10 and using Chaining.
im tasked with creating a linear search script using functions on a 10 element array. the elements are to be supplied by the user as is the search target.
I understand how to create the array and gather that information from the user as well as howto set a variable for "target", this is what im calling it. Those two parts are simple enough.
I am not fully understanding the calling of an array in a function as a pointer. i semi understand the use of a pointer and howto call a normal pointer in a function. i also understand that an array is nothing more then a "special" pointer with a set of consecutive address blocks for the size of the array.
My first user defined function is simple enough
Code: ReadArray(int A[], int size){ int i; printf("Please enter %d integer numbers separated by spaces: ", size); for (i = 0; i < size; i++) scanf("%d", &A[i]); }
Sso nothing out of the ordinary there. that should be a standard for loop and use of scanf, sadly prof has not covered ssanf or any of the other options so i am stuck using scanf for now. maybe someday down the line in a other program or after this course ill get the chance to learn about better options for gathering data from the user.
I am confused as to my next function:
Code: void SearchArray(int A[], int target, int size);
I've not written any code here yet as im not sure if i should call the A[], or *A for the first type of the function?
If i call *A do i then use something like this for my search:
Code: for (*A = 0; *A < size; *A++) if (*A < target) or use A[] insteadA?
Code: for (i = 0; i < size; i++) if (A[i] = target)
I am trying to test my client-server socket program wherein the client connects to the server,client sends a message, server receives it and echo back to the client.So far, in the program server receives the message from the client, prints it BUT when it tries to send the message back to the client it shows an error.
sendto(): Invalid argument.I am new to socket programming.
Code:
//Server #include<stdio.h> //printf #include<string.h> //memset #include<stdlib.h> //exit(0) #include<netinet/in.h> #include<sys/socket.h> #define BUFLEN 512 //Max length of buffer #define PORT 10003 //The port on which to listen for incoming data }
