C/C++ :: Placing Numbers In Random Positions In Matrix?
Oct 30, 2014
i have a problem with a bit of code (part of an as-yet incomplete program that creates a sort of maze with 10 roadblocks, and then finds the shortest route to the exit.
I don't know what it means, to put tags around my code, but I shall try to point out the problem bit clearly. It is not a long segment. This part is all working fine and printing the messages the user needs to see initially:
#include <stdio.h>
#include <stdlib.h>
int main() {
printf("The number -1 shall represent the position of the robot in the matrix.
"
"The number 99 shall represent the position of the exit.
"
"The number 100 shall represent all blocks.
"
"All other numbers represent the number of moves required to reach the occupied space from the robot's position.
");
Below is where is goes bad, and I really am not sure why. The program says it has stopped responding and gets grayed out, and then I get the error message, "An access violation (Segmentation fault) raised in your program.
I have tried using the debugger, and it only tells me it found 0 errors and 0 warnings.
srand(time(NULL));
int initialmatrix [8] [8];
initialmatrix [0] [7] = 99;
int numberofblocks=0;
int randomrow;
Question: Write a program that calculates sum of the numbers in the given positions.
Input specification : There will be 4 lines of data. You will be first given the size of the positions array (n). Then, the following line will have n integers which is an ordered list in increasing order and 0 < n ≤ 3000. The third line will give the size of the number array (m) where 0 < m ≤ 5000 and The last line will have m integers between -30000 and 30000. Note: The positions start from 1 and goes until m.
Output specification : Show one integer number. Sum of the Numbers in the given Positions.
I made a function that provides random number to a matrix. The function works fine but with one problem, every time i call the function it provides the same numbers to every matrix.
void randomMatNumbers(int **p, int rows, int cols) { int i, j; srand(time(NULL)); for(i = 0; i < rows; i++) { for(j = 0; j < cols; j++) p[i][j] = (rand() % 199) - 99; } }
My program behaves weird... I wanted to generate 10 random numbers from 1 to 100 each of them bigger than previous, using the while loop and function that returns a random number in specified range.
When I run the program, I get numbers much bigger than 100, even negative number, and numbers are same every time I run the program.
Code: #include <ctime>#include <cstdlib> #include <iostream> using namespace std; int range(int low, int high);
I have a program that generates random numbers. After the random number is generated, the program asks if you want to generate another random number. However, if you generate another random number, it is always the same as the first random number. How can I fix this?
I'm trying to generate random numbers so that I can assign people to teams. So far I have come up with this
Code:
int generateTeam(){ int i, teamNumber, c, n; for (c = 0; c <= 5; c++) { n = rand()%100 + 1; }
[code]....
}//end generateTeam I'm not sure how to make it so that I can exclude the previous random number when generating the next one. As an example, I have 22 students and I get the number 19. Now I can't have 19 again because that guy already has it.
Ok so Im suppose to make this program were the user inputs the size of the array then the user sets a certain range min and max for random numbers to be generated. I have a function named fillarray()
#include <iostream> #include <cstdlib> #include <ctime> using namespace std; int fillarray();
[Code] ....
Whenever i run the program i keep on getting a loop for the size of the array.
I want to generate big random numbers in C(not C++ please).By "big" I mean integers much bigger than srand(time(NULL)) and rand() functions' limit(32767).
I tried writing: (note:I am not able to see "code" tag button in this editor,so I am not using it)
But I have doubts about it's randomness quality.Also there is another problem,the program can't know the maximum random number it should use before user input,so maximum random number may need to use much smaller maximum random number according to user input.
Is there a better algorithm to create big random numbers in C?
I am designing a math program for kids. I want the program to produce 2 random numbers and check the sum of these numbers against the user's guess. I have the generating random numbers portion complete. What's the coding procedure to compare the sum to the user's guess?
Assuming you have an array of these values x=[16,18,23,24,39,40] how would you write a function to generate random numbers that can add up to a 100? I need to know how many random numbers can add up to a 100.
This is my program i have to choose for random number between 1-25 and display them the program works perfectly just that every time i run its always the same numbers.
#include <iostream> #include <cstdlib> // include library to use rand using namespace std; int main(){ int winner1; // declare variables int winner2;
i wrote this code but don't know if the numbers i array for p will generate in that order. how to get 5 random numbers horizontally and insure that 7,15, 22,27,31 will not generate in that exact sequence?
#include <iostream> #include <stdio.h> #include <stdlib.h> #include <conio.h> #include <stdio.h> #include <time.h> using namespace std; int main() {
But I have doubts about it's randomness quality.Also there is another problem,the program can't know the maximum random number it should use before user input,so maximum random number may need to use much smaller maximum random number according to user input.
Is there a better algorithm to create quality big random numbers in C?
Let's say I am using a library containing classes called class1 and class2 but both classes take three arguments to construct them. eg. class1(int a, int b, int c). and the same for class2
The below is an example of how to lay out the structure in the header and source file if class1 and class2 don't have any arguments in their constructor. But.... I'm not sure how to go about the below to take into account the constructor arguments of class1 and class2.
I m trying to place an image on the colour frame of the Kinect live video. I m able to overlay the image using alpha blending mechanism.
The image used is a bitmap image of dimension 128*128.
The Kinect has a resolution of 640*480.
IDE used is Visual studio 2010 and I m developing using c++.
The Kinect has a render target whose size is taken as 640*480 so that it stretches for the complete window. So when I try to overlay the image it appears 5 times because of this stretching. If I increase the image size to 640*128 i get a single image that is stretched horizontally across the window with dimension 640*480.
I have created a function that will create a render target with bitmap properties and size equal to 640*480. This is used to store the data from the Kinect, frame by frame, and draw it on to the screen
So I think when I overlay the image, it gets replicated 5 times to meet the render target size.By default the image is placed at the left top position.
My doubts are
- How can I use different functions to specify the size of render target for Kinect as 640*480 and the size of render target for bitmap image as 128*128.
- How to I give overlay or place the image on the live video at a specific location.
The program is to generate random numbers to a file and will have one integer parameter, Open a file and then using a loop write the required number of random numbers to the file. Scale the random numbers from 1 and 100 inclusive. Then closes the file .The last function will read the numbers in the file into your program. so far i have
I generate a series of random numbers in parallel (using OpenMP), but depending on what number of threads I invoke, I get a different result. From that I conclude that I have made an error somewhere!
Here is the MWE, which generates a number between 0..1 and increments a variable if the generated variable is larger than 0.5:
i'm trying to fill an array with random numbers and then sort them via bubblesort. it seems to work so far. the problem is, that i seem to get the same numbers for the same input. somehow the randomness isn't working.
Code:
#include <stdio.h> #include <stdlib.h> int main() { int a, b, c, d, e, f; }
