i have two loops ie.
if (n==null)
{
do loop 1
}
else //(n=!null)
{
do loop2
}
now i have to update the above code, with a single loop ie. when n==null or n!=null do the loop 1
how can i update.?
can i do like this
if(n==null ||n=!null)
{
do loop 1
}
is || operator above does the job what i expected
I have to make my program display days 1-30 along side numbers increasing by 5 each day beginning with 6 on the first day. I wrote 2 for loops on separate tabs but now I want to know if its possible to combine them into 1.
For loop 1
int day,;
for (day = 1; day <=30; day = day + 1)
For loop 2
int candy;
for (int candy = 6; candy <=151; candy = candy +5)
I've been given an assignment called a Single Facility Layout Problem in which a number of machines (for the purpose of the assignment they're called machines) with an x-coordinate, y-coordinate and weighting are given/inputted. I'm using 5 machines for ease of use and reading errors.
The object of the program is to calculate the value of each set of coordinates using the Me formula, the lower the value, the better. Thus the program should output a 5 different values.
Problem: My problem is that instead of getting, say 5 unique values, I'm getting 5 of the same value much like the photo attached.
- How can I remedy this?
- Is there a limit to the amount of FOR loops that can be nested? If not why isn't my code working correctly?
- Where should I place the printf statement in order that I will output 5 unique values?
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main() {
//'h' is number of machines, objects etc.
int h=5;
[Code] .....
Consider:
Code: template<unsigned int N>
class Test
{
private:
[Code]....
I just cannot understand why (clearly, we are calling <0, 0>, not <0, 8>). If I replace "N" with 8, it works as expected (at least for the beginning of the loop). I only tested on MSVC.
I want to create a specific number of for loops each in another loop, as in example:
for(i=0;i<9;i++)
{
for(j=0;j<9;j++)
{
for(k=0;k<9;k++)
{
//some stuff
}
}
}
In this example there are 3 loops, but what if i want to create e.g. 10 such loops, and program reads a number of loops from a txt? It is needed for checking numbers.
I'm using an animation program. In this program I've simulated a particle system. The particles are flying around at different and varying speeds. I've attached birds to the particles and I want to be able to control each bird's flapping animation based on its velocity; so birds moving faster will be flapping faster.
Initially, the bird's flapping animation is controlled by a parameter that goes from 0 to 100%. So not only do I need to drive the speed at which the animation goes from 0 to 100%, I need to set it on a loop so once it reaches 100%, it loops back to 0%. I'm extremely new to code so I don't think it would be wise for me to even provide a jumping off point, not that I could.
I'm trying to make a percentage counter inside a loop, printing each completed percent of the loop as it goes. I've managed to write such code, but when I run it the percentage output breaks down (becomes negative!) for large loops. I have an example below.
Code:
#include <iostream>
#include <sstream>
#include <string>
#include <stdlib.h>
#include <stdio.h>
using namespace std ;
int main() {
[code].....
Compiling and running the above yields the output:
Code:
...1% ...2% ...3% ...4% ...5% ...6% ...7% ...8% ...9% ...10% ...11% ...12% ...13% ...14% ...15% ...16% ...17% ...18% ...19% ...20% ...21% ...-21% ...-20% ...-19% ...-18% ...-17% ...-16% ...-15% ...-14% ...-13% ...-12% ...-11% ...-10% ...-9% ...-8% ...-7% ...-6% ...-5% ...-4% ...-3% ...-2% ...-1% ...0% ...1% ...2% ...3% ...4% ...5% ...6% ...7% ...8% ...9% ...10% ...11% ...12% ...13% ...14% ...15% ...16% ...17% ...18% ...19% ...20% ...21% ...-21% ...-20% ...-19% ...-18% ...-17% ...-16% ...-15% ...-14% ...-13% ...-12% ...-11% ...-10% ...-9% ...-8% ...-7% ...-6% ...-5% ...-4% ...-3% ...-2% ...-1% ...0% ...1% ...2% ...3% ...4% ...5% ...6% ...7% ...8% ...9% ...10% ...11% ...12% ...13% ...14%...100%
If I change the value of N to 1e7 instead of 1e8, the output is correct however!
Code:
...1% ...2% ...3% ...4% ...5% ...6% ...7% ...8% ...9% ...10% ...11% ...12% ...13% ...14% ...15% ...16% ...17% ...18% ...19% ...20% ...21% ...22% ...23% ...24% ...25% ...26% ...27% ...28% ...29% ...30% ...31% ...32% ...33% ...34% ...35% ...36% ...37% ...38% ...39% ...40% ...41% ...42% ...43% ...44% ...45% ...46% ...47% ...48% ...49% ...50% ...51% ...52% ...53% ...54% ...55% ...56% ...57% ...58% ...59% ...60% ...61% ...62% ...63% ...64% ...65% ...66% ...67% ...68% ...69% ...70% ...71% ...72% ...73% ...74% ...75% ...76% ...77% ...78% ...79% ...80% ...81% ...82% ...83% ...84% ...85% ...86% ...87% ...88% ...89% ...90% ...91% ...92% ...93% ...94% ...95% ...96% ...97% ...98% ...99%...100%
I'm trying to create a Makefile for a single fie ( mycod.c)
What is the syntax?
I am writing a program, the trouble is is that it uses a single thread and is SLOW.
View 10 Replies View RelatedI have some problems with copying a single character from one char into another. How do I do that? Here is the function I am using
Code:
void
text_col (char line[]) {
char line1[1];
int l, ii;
l = strlen(line);
[Code] ....
I am trying to copy in a loop every single character from char line into char line1. That is not working.
Im new to c#. In c++ I have made a window and painted it with dots and concentric circles, like a radar PPI screen. Trying to do this in c#, I can't find how to draw a single pixel on the window.
Also, what should I be drawing on: the form, panel, picturebox...?
I'm trying to compare a single value with a value from my Linked list and if they are same, I want to add the value from the list to new list. In other words I want to create a new List with values with the first one. Here is the code that I made, but it's not working.
This is the code with which I search in the first list for a node with a value. In the main() function I have A.find_city(), so it can start from the start_pointer from the first list:
void List::find_city() {
List *temp1;
int b = 0;
char city[20];
cout << "Enter city: ";
cin >> city;
temp1 = start_ptr;
[Code] ....
This is the code with which I add a node to the new list:
void List::in(List *temp1) {
List *temp2;
if(start_ptr == NULL)
start_ptr = temp1;
[Code] ....
I've got the program for the most part except one part because it's basically wanting me to return 3 values from a single function and I'm unsure how to do this the way it wants me to. The rules:
Call the user-defined function to read in x in the series to be used for calculating the results. Pass a prompt for x as an input parameter, and return the validated x value to main.
After a valid x has been entered, call the same user defined function a second time, to read in y. Pass the prompt for y as an input parameter, and return the validated number of terms value to main.
After a valid y has been entered, call the same user-defined function a third time, to read in z. Pass the prompt for z as an input parameter, and return the validated z value to main.
here i have an assignment, creating a longInt class and using it to calculate large numbers, i dont have a clue how to manipulate a whole array as a single ineteger.
View 7 Replies View RelatedI am making a text encrypter and I have to convert text into ASCII codes. I know how to convert a single character into ASCII -
#include <iostream>
using namespace std;
int main() {
cout<<"Text to ASCII converter"<<endl<<"Enter text to convert into ASCII - ";
char text; //defining input type, which is single character
[Code] ....
Try it here - URL.....Is there any way to run a similar program, which converts a string with spaces into ASCII code?
For Example i have made a text file included some students data. Now i want to change just a single student data. That file should remain same just that student's data replace.
View 3 Replies View RelatedSo, I've made programs like Prime number searchers and such. But the problem is if I use an int or long int variable for the program I am limited by the variable size. I can't search through numbers larger than their memory size. So my question is: Is there a way to allocate memory to a single variable, NOT AN ARRAY, so I can make a variable as many bytes as I want?
View 3 Replies View RelatedI am stuck at a problem where I have two pointers pointing to the same object, and I need to change an int on one of the pointers but point to the same object.
To be more specific, there is an array of Item objects. A long list of items a player can buy. Then, there is the player's inventory, a vector pointer. Whenever a player buys an item, it sets the pointer to the bought object.
The problem arises when he buys two of the same object. I tried to identify the objects with an ID, but it does nothing, because they are just pointing to the same object, and so I have no way of telling them apart.
This is further complicated by the fact that it is a polymorphic object. So, I can't simply make a new every time I buy an object, without making a hassle. Well, at least I am not familiar with that kind of code just yet.
I want to read a single byte from a wifstream. With an ifstream I would use read(), but given that the char type for an wifstream is wchar_t (2 bytes), this is also being used by read(), so how can I read a single byte from such a stream?
View 3 Replies View RelatedI have an MFC application(.exe) in which i am creating an pointer object to CComQIptr<chemst::IChems>myinfo and after this i have using cocreate instance i had created the object launching that object, so Where i am using that CComQIptr object.
I have been creating instance to that COM exe (child exe) and at the end of the function i am releasing that object (myinfo->release).i want to create single instance for it and i want to use them in different .cpp files and finally i want to kill the child exe. Even though i release the object it is still alive.(Visualising in Task manager whether the exe is still alive or not).
I wrote a code which checks if there are any single numbers in an array.e.g.In the next array there is a single number - "3" 4 1 4 3 4 1..Here is an array which doesn't have single numbers in it: 4 1 4 3 3 1
Code:
#include <iostream>
using namespace std;
int single (int arr[], int size)
{
int couple=0;
[Code]....
First I thought to double the number of couples I'll get from my search and find some connection to the length of the array, but it hasn't worked out (signed red).
Anyway, I have an assignment in which I'm supposed to create a program to be used in a library. Basically a database storing all books currently outside the library along with who and when borrowed them. It also says I should use single linked lists.
Now, I've got a general idea of how to make it work but I've stumbled upon a problem. Since the program has to write all the data put into the database in a file and be able to tell the user whether a book has been kept too long by the reader, I figured I'd implement the struct tm to convert the date when the book was borrowed (or rent, whatever, English is not my first language ;p) into UNIX time.
Then, when I'd like the program to tell me which books are being kept hostage by the readers the program would look for a certain record (like a string inside a certain struct) and compare the date inside that record with current date and then the result of this comparison would be compared with a given, defined time limit. Although this is all a different kinda function, it's a bit simplier, I guess, and I think I'll work it out. However to get there at all I need to be able to store the data correctly and there is a problem, which I'll explain on the other end of the code .Here is the code I came up with:
Code:
#include <stdio.h>#include <string.h>
#include <stdlib.h>
#include <time.h>
int DisplayMenu();
int ReturnToMenu();
int AddBooks(char *filename);
[Code] ....
So, my problem is as follows: the date seems to be stored alright, but it's wrong. For checking I had a Code: printf("%d", mktime(&date)"); added and it returned "-1"... As I said, I'm relatively new to coding/programming and my knowledge is rather rudimentary.
By the way: I had one more gremlin haunting me on this one. Namely at the begining of the input to the AddBooks function:
Code:
int flag = 0; do
{
printf("Please type in the book's title:
");
gets(newbook.title);
if (strcmp(newbook.title, "") == 0)
[Code] ....
The do while loop is to ensure 'unempty' input. Without this loop however, the program would display the message "Please type in the book's title:" but it wouldn't wait for input. It's simply jump to the next printf and wait for input then... I figured it might be becuase it took the 'Enter' that was somehow still in the memory after the user confirms his selection in the menu... It's just a guess, though.
I'm a beginner with C and wonder how to include single header files (*.h) in to my project. I mean header files which are not included to the standard installation package.
I thought it would work if I just copy the newheader.h file in to library folder c:MinGWinclude, but it didn't work. Is there some kinf of GCC -command or procedure to add these single header files or how it should work?
All of those standard header files are working well and I don't have any problems with them.
Environment I'm using is MinGW+GCC+Win7.
I have been trying to compile a trading strategy but i keep getting a single error CS1513.
I am not a programmer so its very hard for me to fix.
I need to write a code (in C99). The programe receives an input number (integer) 'n' and then a matrix sized n*n (matrix[n][n]), all numbers are integers. We're supposed to define the matrix's size with malloc. Now the program needs to sort the lines of the matrix (the number in each line), in a single function (!) this way:
even line index (0,2,4,6...): from small to big.
odds line index (1,3,5...): from big to small.
and then print it.
*note: first line is indexed 0, second line is 1, etc.
I was thinking to sort it with bubblesort function with the following if:
if(i%2==1)
do odds sorting.
else
do even sorting.
when i is the index of the row.
my problem is defining the malloc and how do I send the matrix to sorting.If needed I will attach my current (not so good (completly awful)) code and functions as well as an example of what the prog. supposed to do.
I created a simple program that writes some text to two different text files. how to create a program that would retrieve the information from those two files, and put them in a single file, first the content of input1 and then the content of input2. how to do this. Here is the program that I created that creates the two files.
#include <iostream>
#include <fstream>
#include <string>
int main() {
using namespace std;
string input1;
ofstream fout("input1.txt");
[Code]...
