19,876 Topics
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| | Hi all buddies, I am the beginner for multithreading in C/C++. So, I copied some example from MSDN and tried to compile it as my first step. Currently I am using DEVC++ IDE. The error is like that: " [Linker error] undefined reference to `sprintf_s' ". Here is the program …  |
| | Hello, i have a question about string manipulation, i am supposed to write a function that takes a character array and returns a void, so far so good, but its supposed to reverse the array as output, for example, if the input is "Hello" the output is "olleH", here is … |
 | Hello. i wrote a program to do the following: [B]Given two strings S1 and S2. Delete from S2 all those characters which occur in S1 also and finally create a clean S2 with the relevant characters deleted. [/B] This is what i tried: [CODE] void trimString() { char s1[] = … |
| | Hello, can someone help me write this C++ program: An array can be used to store large integers one digit at a time. For example, the integer 1234 could be stored in the array a by setting a[0] to 11, a[1] to 2, a[2] to 3, and a[3] to 4. … |
| | I am working with multiple forms in C#. My startup Form /or/ Parent Form /or/ Form1 is a login form. on my Form1, I have a textbox1 for username and textbox2 for password and a buttons for submit and cancel. on click event of submit button,if textbox1.text && textbox2.text are … |
| | I need ideas for a C++ [COLOR="Red"]mini [/COLOR]project. It should be complex enough to involve 4 students. |
| | I have written the following code for converting infix to prefix.. [CODE] //Infix to prefix conversion #include<stdio.h> #include<conio.h> #include<string.h> #include<ctype.h> #define MAX 25 void initstack(struct stack *); void push(struct stack *,char); char pop(struct stack *); char *convert(struct stack *,char *); void show(struct stack); int priority(char); struct stack { char arr[MAX]; …  |
| | Guyz please help me Ive got a practical exam tomorrow can anyone give a simple coding for implementing prims algorithm. It accepts the vertices and cost and gives out minimum spanning tree. Please guyz. It must be very simple. It need not be perfect. It need not work for all … |
| | Hellur! Can somebody explain how exactly a fast fourier transform is performed on a wave file? What's happening behind the scenes? I need to get a basic idea of how it works. Thanks in advance drue |
| | Hi, im trying to finish up my assignment on tic tac toe game.. and my program keeps crashing, here are two functions where i think it crashes, probably the first one: [CODE] void tic_tac_toe_init (char *ttt[3][3]) { char i,j; int k=' '; for (i=0;i<3;i++) { for (j=0; j<3; j++) { … |
| | Hi everyone ! i am being asked to write a code of Block'd game that is implemented in Nokia phones ..i really dont know what to do as a beginning could any one help ?? Thanks alot . |
| | Hi! Having some problems with functions in this one. As ypu can see I'm a tottal beginner. What I'm trying to do here is make a program checking if a word is a palindrome. Using 2 functions, one to check and one to reverse the user input string. My problem …  |
| | Hi all, Does anyone know what meanings of %-10d and %-10.10s ? |
| | I am confused with the conversion limitations between the three: ints, floats and double. The question is whether the following operations give the same result or not (yield true or not). For instance we have an integer x: Would (Float)(x) == (float)(double)(x) I believe that should be true, as the … |
| | How do I write this C++ sentinel-controlled while loop? I need to write a sentinel-controlled while loop to see if the coefficients of a quadratic equation have real roots using a nested decision. A character q must be my sentinel. This is what I have so far, but it doesn't … |
| | Hello. Well, for creating linked lists, i always use 2 pointers: one for beginning and one for the end of the list. Is this OK? Or am i required to have just a single pointer pointing to the beginning of the list and then traverse everytime i need to insert? … |
| | I am trying to get the numbers in the array to give me a average out put. here is what I have so for: [COLOR=#0000ff][/COLOR] [CODE] #include "stdafx.h" #include <iostream> #include <cctype> using std::cout; using std::cin; using std::endl; int main() { int grade[10]; int count = 0; char reply = … |
| | i am having problem in executing the following program.........when i execute it,it's getting hanged....pls gimme a gud solution [CODE]#include<stdio.h> main() { int n,x=0,y=1,z; printf("\nEnter a number of your choice:"); scanf("%d",&n); z=n; do { x=n%8; x=x+x*y; y=y*10; z=z/8; }while(z<8); printf("\nThe octal equivalent of the number entered is %d",x); }[/CODE] |
| | [code]#include <stdio.h> #define p printf #define s scanf int program,Y,N; do { p("Choose from the following program\n"); p("1 for program no.1"); p("2 for program no.2"); p("3 for program no.3"); p("4 for program no.4"); p("Continue (Y or N)?"); repeat = getchar(); putchar('\n'); }while(repeat == 'Y' || repeat == 'N'); } program1() … |
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| | Why is it, when I compile this, the cout statement runs twice at first? It does not do that when I have the rest of the code in there that is int. Any thoughts of why or what I am doing wrong.. #include <iostream> #include <string> using namespace std; int …  |
| | write a program which prompts the user to enter an integer whose value is more than 3. Based on inputed number, the program outputs a rectanglar textual shape using digits.(see below). sample run enter n: 5 ***** * * * * * * ***** can explain detail like write down …  |
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| | Hello. i was trying to solve this problem. [B]Given an array of size N in which every number is between 1 and N, determine if there are any duplicates in it.[/B] Well, what i did is, use an array called present, to flag the elements ie: [CODE] for (i = … |
| | im making a program that loads a collection of strings from a file. then the user need to search the keyword using a binarysearch, but im using strings in my program, how to make the program using array of characters? here's my code, thx before :) [code] #include <iostream> #include … |
 | Hi, I have some questions about multi pipe. First of all, What I should do is making 6 child processes and each of child process reduces a global value (by 1) which is saved in malloc concurrently until the value reaches 0. All I could find from google was about … |
| | [code=c] printf("\nn = %*d", 5, 4); [/code] and the output is: [code]n = 4[/code] (yea! there are spaces between = and 4) if i am providing only one argument 5 instead of 5 and 4 i get an error stating too few arguments. What in the world is the "*" … |
| | #include <stdio.h> #define p printf #define s scanf int program,Y,N; do { p("Choose from the following program\n"); p("1 for program no.1"); p("2 for program no.2"); p("3 for program no.3"); p("4 for program no.4"); p("Continue (Y or N)?"); repeat = getchar(); putchar('\n'); }while(repeat == 'Y' || repeat == 'N'); } program1() … |
| | Hi,I have tried to get this program to work,but it works to the moment when you enter some of the array`s numbers and then crashes.In different sizes of the matrix you can enter different number of numbers,but for instance when the matrix is 5x5 the program crashes after the 11th … |
| | I am making a program to do a breadth first search. The code which I am posting here just makes a que of the nodes visited in a binary tree in inorder fashion,so this implementation is not yet complete. While developing I got a segmentation fault which I was not … |
| | I need help in reading a text file and by using a switch statement the user can either press 1 to find the average of all the integers in the text file, and by pressing 2 they find only the averages of the real numbers in said file. This is …  |
| | I'm rather new to the C programming language and I'm very stuck. Whenever I try to assign a value to dynamically allocated string, I end up with a Segmentation Fault. Could someone help me by explaining why this happens. Following is a bit of my code that I think should … |
| | Hey there im doing a simple two up dos program for an assignment and im having some issues, we have been given a skeleton with methods and forms within it and im pretty sure were not allowed to change it. heres my code: [code] class TwoUp { Coin coin1 = … |
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 | I created my own header file in C by creating the ff. files: myfile.h, myfile.c and main.c.Afterwards, I compiled myfile.c so I already have the object file for it, but the problem is when I compiled and run main.c this error message appeared: "Undefined symbol _sum". Please help me to … |
 | i wanna ask about this statement... [CODE]int a[] = {0};[/CODE] the value all of a is it equal to 0 ? i mean all of the location of a.. |
| | I have this following code. It runs. Im trying to implement remove, sort, and find functions in to this program but I do not know how to. I need some ideas. Find - User inputs the song title. If it finds the song title, it will displays the given info … |
| | This seems to be weird: [code] int main(int argc, char* argv[]) { cout << "function main() .." << '\n'; char ch = 0; double number_value=1.1; cin >> ch; cin.putback(ch); cin >> number_value; cout << "1 .. " << " " << cin.good() << " " << number_value << '\n'; cin … |
| | This is my code for drawing a circle using mid point algorithm:- [CODE] //Midpoint circle algorithm #include<graphics.h> #include<stdio.h> #include<conio.h> void drawcircle(int xc,int yc,int r); int main() { int gdriver=DETECT,gmode; initgraph(&gdriver,&gmode,"..//bgi"); drawcircle(250,250,10); getch(); return 0; } void drawcircle(int xc,int yc,int r) { int p,x=0,y=r,incr1=2*x+3,incr2=incr1+2-2*y; void drawPixel(int,int,int,int); drawPixel(xc,yc,x,y); p=1-r; while(x<=y) { if(p<0) … |
| | Hello all, I hope that someone can help me with this, I am trying to add an element to a dictionary, and in order to do such, I am using a binary search mechanism to find the correct place in the dictionary. My code compiles fine, but when I run … |
| | Ok this is so new to me but does anyone have example code that decodes header fields in an IP datagram? or a link to something like the beej's guide....So i need to decode the header from the following example. 0000000 141724 120662 000002 000004 000000 000000 000000 000000 0000020 … |
| | can anyone pls help me to solve tis Q? the objective is :To utilize string handling and file handling capabilities in C programming. Task : 1. Develop a program that will receive a single string which shall have a minimum length of 10 characters long. (Hint: Use function called strlen …  |
| | Imagine a tollbooth at a bridge car passing by the booth is expected to apply a fifty-cent tool. Mostly they do, but sometime a car goes by without paying. The tollbooth keeps track of the number of cars that have gone by and of the total amount of money collected. …  |
| | I'm trying to solve a sudoku checker for a game I'm building in C. Essentially these nested for loops are supposed to check through the smaller boxes of 9 numbers to ensure there are no duplicates. Unfortunately, the continue seems to make the checker not work. :( 123 456 576 … |
| | hi everyone!!! need help here, how can i pass a string to a class? i have two forms and a class, my 1st form is the main form and the other form is used for assigning to a keyer, this form has a combobox where i will select the keyer …  |
| | hi Everyone !! i need help guys with hash table in c ..could anyone help me by a little explaination of how to use hash tables ...please give examples.. Thanks in advance for all. |
| | Hi all, Could you tell me how to write simple graphics program in c, for example, how to take the format of bmp, pgm, csd file from image file? how to convert from one format to other? If anybody knows a good book or web site, please tell me soon. |
| | [CODE] #include<stdio.h> #include<math.h> #define min(a,b) (((a)>(b))?(b):(a)) #define abs(a) (((a)>(-(a)))?(a):(-(a))) void convert( int bod, int *x, int *y, int *z ) { int a; int b; int c, str, zb; if( bod==1 ) { *x=0; *y=0; *z=0; return; } a=(bod-2)/6; b=(-1.0+sqrt(1+8*a))/2.0; c=bod-1-3*b*(b+1); ++b; str=(c-1)/b; zb=c-str*b; switch( str ) { case 0: … |
| | Hi, Can someone explain to me what is going on in the code below as im new to pointers and not quite sure what is going on..In particular, an explanation of the first couple of iterations in the for loops would be helpfull.. Thanks [code=c] #include<iostream> 5 using namespace std; … |
| | Hello all: I would appreciate some advice on array subscripts. I am having problems passing 2-D arrays to functions I have written. The reason is that some of the arrays are dynamic arrays subscripted as array[i][j], whereas some of them were created in a class I wrote and these are … |
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