[c] Forum Topics

this is the question: Write a C program that will request the user to input the values for R,L,and C and plot the a graph of current ,I, against frequency . The range for the frequency axis should be automatically selected based on the resonance frequency of the circuit.

Hey guys, How are you doing? My name is Slavi and I am 22. I am currently studying Electronics and Computer engineering in Copenhagen, Denmark. I am very excited to become part of DaniWeb's community. I am a very interested person in programming and I am taking every optional course …

Similar to echoserver, but this one handles multiple clients by forking the process.

#include<stdio.h> #include<stdlib.h> //#define MAX 10001 void quicksort(long long[],int,int); int partition(long long[],int,int); void swap(long long[],int,int); int main() { int t,k,q,i,j,qi,c,p; long long *mot,*sat,*res; //printf("Enter no of test cases"); scanf("%d",&t); for(i=0;i<t;i++) { p=0; //printf("Enter no of chefs and no of queries"); scanf("\n%d %d",&k,&q); mot=(long long*)malloc(k*sizeof(long long)); sat=(long long*)malloc(k*sizeof(long long)); res=(long long*)malloc(k*k*sizeof(long long)); …

Through programming experiment prove your claim for float storage format?

What is the difference between run time errors "Stack overflow.", "Access violation writing location 0x00000000." and "Stack around the variable 'w' was corrupted."

I have a char all[1500]; which will store each network packet. I will convert the hex value into humand readable. Finally I need to extract the url. For e.g. I have this GET /mail/ HTTP/1.1\r\n. I know I can use first to decide if the word GET and HTTP/1.1. exist …

Hello. I need to set up some pipes for a homework assignment as part of a bigger project. The issue I'm having is that the array (args) I'm using to populate the pipe arguments keeps segfaulting and I don't know why. Everything has been malloced beforehand and the faults only …

I NEED HELP PLEAS #include <stdio.h> #include <stdlib.h> #include <string> #include <ctype.h> #include <iostream> using namespace std; struct Player { int yearsPlaying; float playerPay; string playerLastname; string playerAge; string playerName; char playerNumber[100]; }; const char fileName [] = "Players.txt"; void createFile(void); void printPlayer(struct Player*pi); void writePlayer(FILE *fp, struct Player *pi); …

So I'm trying to count the number of occurrences of each digit within an array. My code I've got so far looks like the following: #include <stdio.h> #include <string.h> int main() { int numbers [10]= {1, 4, 5, 5, 5, 6, 6, 3, 2, 1}; int count = 0; for(int …

This is a simple echo server that I've written while learning sockets programming. Compile the server and run it. You can connect to it using telnet like this: telnet localhost 1337 Disconnect the client by typing "/quit" without quotes.

Can someone help me with the codes in C language.this is the problem: create a program that will display the factors of a given number.the input must read from a text file and consist of one or more lines,each line contains a number. Sample input from a text file: 6 …

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> // free- A lot of extra marks //Avoid global variables. struct packet { //struct for the packets int source; int destination; int type; int port; char data[49];//starts at 0 }; int add(); //to add a packet void view(); // view a created …

int main(int argc, char** argv) { FILE *f; char string[100]; int counter=0; f=fopen("New Text Document.txt","r"); if (f==NULL) { printf("error"); } while(!feof(f)) { fscanf(f,"%c",&string); } fclose(f); for(int i=0;i<100;i++) { if (string[i]=='a') /*doesnt work, why?*/ { counter++; } } printf("\n the number of vowels a is : %d",counter); getch(); return 0; } …

I want help in my code ,, the program should search for all words in a string For example , if the string is welcome to pointers world come and see the magic it should print welcome come . Any One can help me to find a way to solve …

I want to encrypt and decrypt an excel file via rc4 Obtain a code in c. I want the same in c#.

In the brute force pattern matching algorithm when all the characters in the pattern are unique then brute force can be implemented in Big-oh(n) complexity where n is the length of the string (reference: introduction to algorithms). can anyone help me with the algorithm? Thanks in advance

Enter X, Y coordinates for your move : 2,3 _0|_0|__ _X|_X|_X | | Congratulation Player 1 ! you have WON! Want to play again? y/n How can I reset the array in order to continue playing after finish playing the first round? #include<stdio.h> #include<stdlib.h> #include<string.h> char array[5][5]={' ','|',' ','|',' ','-',' …

As it is said in the title i can not get the keyword string. I finally found a version of C for windows 8 but now i can t get the most important thing types int, double char,bool ect... work perfectly and always show as a keyword but somehow i …

I am trying to print an array of linked lists. I am having trouble getting it to print. Here is my struct. typedef struct VERTEXTAG { char c; bool isvisited; struct EDGETAG* p; }VERTEX; typedef struct EDGETAG { VERTEX* v; struct EDGETAG* q; //cookies rock //I like cookies }EDGE; Here …

What is the difference between fscanf and fgetc? I have a few people arguing with me on the differences. I thought fgetc reads character by character of a file. I thought fscanf reads the whole file. Is that corrrect? Can someone elaborate on what I forgot?

#include <time.h> #include <math.h> #include <stdio.h> #include <conio.h> #include <string.h> #include <stdlib.h> #define ROW 9 #define COL 9 int printboard(int grid[ROW][COL]){ int x,y,n,chk; srand(time(NULL)); for(x=0;x<ROW;x++){ for(y=0;y<COL;y++){ do{ n=rand()%7+2; grid[x][y]=n; if (((grid[x][y]==grid[x-1][y]) && (grid[x][y]==grid[x-2][y])) || ((grid[x][y]==grid[x][y-1]) && (grid[x][y]==grid[x][y-2]))){ chk=1; continue; }else{ chk=0; printf("%d ", n); } }while(chk==1); } printf("\n\n"); } } …

How to send a string from c to java in continuos loop

When doing a linked list of chars with just a single character do you think it's better to use pointers in your struct like this? Typedef struct String_Node { Struct String_Node* next; Struct String_Node* prev; int id; char* c; } String_Node_t; Or better to not use a pointer with the …

If I have two bytes representing 117, 117 or 1110101 , 1110101 and I want to concatenate them (technically I know how) then which end attaches to which? I understand they will be arranged in memory depending on endianess but overall, is there a standard way of concatenating bytes. Lets …

Can anyone help me with this code i have started it but then I got confused thanks. Option 1: Create two-dimensional array choc_yourname[50][7] using the data in file chocolates.txt and print the values of this array on the screen Option 2: Calculate the average quantity of sold chocolates per day …

This will be a relatively quick article because it's a simple issue. The `system` function gets a lot of flak for being slow because it calls the shell runtime to execute a command, but I rarely see the more devastating issue of security brought up. `system` is insecure in many …

a simple program to find out the permutations of all the letters in the word ex: abc gives abc acb bac bca cba cab[code]void swap(char *p,char *q){ char c; c=*p; *p=*q; *q=c; } void perm(char *a,int m,int n) { if(m==n){ for(int i=0;i<=n;i++) cout<<a[i]; } else { for(int j=n;j<=m;j++) { swap(a[j],a[n]); …

When i compare two strings i can use strcmp. But i want to know that when i compared more than 2 strings. Have any function OR method i can use? Thanks.

I am doing data validation. Assume i type 3 student ID: First:1234 Second:4567 Third:1234 (same ask the user to type student id again) Please give me some hints,how can i do the part of checking the all data the user type? (whether have already exit). Thanks. #include<stdio.h> int main() { …

hi everybody this is my code below that i did so far for my assignment i made a smiley but ,it s everywhere in my code ,and it s not so perfect i think i need only 1 and big smiley in my pattern i think i am missing something …

Hello! I was extremely bored and stumbled accross this website: [Hackerrank](https://www.hackerrank.com) It's a website that contains lots of programming challenges of various types. I signed up and looked at some of the challenges, lots of them are quite over my head since I'm not that skilled or any expert by …

Creat a program that: -Asks you your age -Takes your input and stores it in an integer variable -Takes text input and stores it in character array (string) -Has a loop that prints this pattern: * ** *** **** ***** ****** ******* ******** ********* **********

i have written a code in matlab.... it goes like I=imread('path'); c=~im2bw(i); [x,y]=find(c==1); a=median(x); b=median(y); d=plot(b,a,'r.'); imshow(d); basic task is to take an image of a block with a small circle mark.... find the location of circle ([x,y] in code above)....find centre of circle (a, b in this code)....and place …

hi I am a high school student in a programing class and I need help writing my C program. If someone is willing to help me please let me know if I can contact you by email. Thank you. Jess

I am trying to calculate the size of char *. I would would think one of these 2 methods would work but they are not. char *vertices; printf(strlen(vertices)); printf(sizeof(vertices));

Hi, i am using emu8068 and i want to know how i read from a file or buffer(with file text) a specified caractes. I have a file named "config.txt" and it seems like that: Easy 50 10 Hard 20 5 When user select Easy/Hard i want to catch the 50 …

int menu(c){ int choose; do{ printf("*MENU\n"); printf("*Press 2 to move down\n"); printf("*Press 4 to move left\n"); printf("*Press 6 to move right\n"); printf("*Press 8 to move up\n"); printf("*Press 5 to switch\n"); printf("*Press 0 to quit\n"); printf("Please enter your choose: "); scanf("%i",&choose); if(choose==2){ }else if(choose==4){ }else if(choose==6){ }else if(choose==8){ }else if(choose==5){ }else …

Im having problems creating a function that checks how many times a number shows up in the array The array is already sorted im trying to loop through the array and theres be a counter to keep track of the number of times it appears and then a second array …

I am trying to print a char array on separate line for each element. This is what I have tried and neither way is working. I would like the output to look something like. The array length is c c The array length is o o The array length is …

//Description: Binary Search Tree with array implementation, it has inorder, postorder and pre order traversals. //Note: it is not advisable to use array in binary search tree because it consumes a lot of memory in the long run // instead use linked list this is just a reference to understand …

 We estimate pi.  We assume as in Figure 10 is a side of the square.  The first type, which defines a function IsInCircle Quadrant is the point or not.  intIsInCircle (floatx, floaty);  The number of random points that are inside the square, the Number of …

How to set rand command, an integer from 3 to 50 (inclusive), but save it as a decimal number

Hi Everyone, I need help with my assignment but i only require assistance to give me some guidance on the issue. I need to write code in c linux programming, that can change directory [CD]. when you open the command prompt in the linux machine, you type cd .. or …

Plz help me tell me how we can convert the C program in C++ I working on OCX(Active X controls) plzzzzzzzzzzz...............reply

Write a program with Recursive function that for every step will receive input from a number of until the digits 0 entered. After entering the digits 0 It should be entered into the numbers entering printed in reverse order Track.

a C++ program that reads in two partially filled arrays. One array contains student IDs (with int type) and the other contains GPAs (with double type). The program will sort the two arrays according to the student ID and print out the results?

Here is a simple implementation of implementing a simple Left trim (ltrim) and Right trim(rtim) of unwanted characters from a C style string. (null terminated strings). Doesn't suffer the overheads of the memmove implementation in which the worst case scenario (a string containing all junk characters) is approx. N^2 / …

I am a computer science student and i have to do a miniproject using only c.my project title is "to estimate time complexity of a given algorithm/program code.please tell me how can i initiate that i tried counter,line count it couldn't help,i have to submit my project at the first …

Can any one tell me how to check if the elements of two arrays are same? in c