19,876 Topics
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| | I'm trying to write a code to take an image as argv[1] and save it in a new file "argv[2]" with the image flipped upside down, but my output does not open with any image viewer here's my full code. some one help me out please #include <stdio.h> #include <string.h> … |
| | I'm trying to search a string array of names and return an integer to the main depending on if the search was successful or not. for example if the user entered name didn't exist it would return -1 and I can tell the user the name is not listed, but … |
| | I'm writing a program that is supposed to take in a list of names from the user, store them in an array, and then search through the list to check and see if the next name the user enters is part of the original list of names. The issue I'm … |
 | what are they trying to say in this paragraph , I have read it 10 times, but not getting what they want to teach me here: link is this. : http://community.topcoder.com/tc?module=Static&d1=tutorials&d2=primeNumbers and the para which is just before the euler totient theorem. am copying here also. *Or consider a scenario … |
| | Hi guys, here I have a code snippet that I tried to run for 2 days without any result. There is something wrong with fread function. When debugging, it doesn't read all the file that I need Here is the link to the file http://www.math.umbc.edu/~rouben/2003-09-math625/images/reese_witherspoon.pgm In main: #include <stdio.h> #include … |
| | I have a project for school that i am working on, and i cant figure out how to store names in an array. i have it declared as [code] char firstname[25]; char lastname[25]; [/code] but i was told that just stored one string and when i go to print out … |
| | Hi I'm having problems with the code in that everytime it iterates it replaces all the values of SendBack with the newly read in values from fgets! FILE *fp; char FileLoc[] = "123456-12345678.txt"; char *SendBack[10]; fp = fopen(FileLoc, "r"); if (fp != NULL) { int x=0; while (fgets(BUFFER,20,fp)) { SendBack[x] …  |
| | how would one manipulate the code below, using pointers? int add(int a, int b) { int result=0; int s=0, c=0; /* result and carry; carry in for bit 0 is 0 */ /*int bit_a, bit_b; int i, n, mag=0; for(i=0; i<16; i++) { bit_a = ((mask_array[i] & a)?1:0); bit_b = … |
| | Hi I would like to get some directions on where to look for in the way of getting a c++ profram to put hex values on a printer. I would also like to know if some one could guide me with a few examples. Regards GT |
| | code snippet: void checkcollision() { float x1 = tanks[0].x; float y1 = tanks[0].y; float x2 = tanks[1].x; float y2 = tanks[1].y; float dist = sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2)); float dr = tanks[0].rad+tanks[1].rad; if(dist<dr); { printf("checkcollision read true\n"); printf("dist: %f, radius+radius: %f\n",dist,dr); goback(0); goback(1); } } output: checkcollision read true dist:363.159302, radius+radius:14.142136 … |
 | Hi, I have a counter that I am using in my main and increasing through pointers in other functions. I want to be able to use the value of this counter in a loop but... I can't. I am getting a warning when I compile saying that I am trying …  |
| | ` LONG APIENTRY Esl_CheckCMTClassRecord(struct CMT_Class_Record *ClassRecord, long *ret) { USHORT uResult; SHORT retcode; uResult = bt3Start(Class.CMT_fd,Class.CMT_data); if(uResult == CLASS_RECORDLENGTH ) { memcpy(Class.CMT_data, ClassRecord , CLASS_RECORDLENGTH); retcode = bt3FindRel(Class.CMT_fd, Class.CMT_data, FR_EQUAL); // Read CMT record if(retcode > 0) // read successful { *ret = 1; return(0); } else { *ret = … |
| | #include<stdio.h> #include<stdlib.h> int main() { int **a,r,c,i,j,; printf("\n enter the size of row"); scanf("%d",&r); printf("\n Enter the size of col"); scanf("%d",&c); //allocating memory a = (int**)malloc (r*sizeof(int*)); for(i = 0;i<r;i++) a[i] = (int*)malloc(c*sizeof(int)); //array elements for(i = 0;i<r;i++) for(j = 0j<c;j++) scanf("%d",&a[i][j]); -------- --------- how to fill the array with … |
| | Hi i am totally new to C and have a doubt on which one is correct below. LIBRARY PWHDENDT InitInstance DESCRIPTION 'PWS Endt Array Functions' ;DATA and CODEare not supported in windows ;DATA PRELOAD MULTIPLE NONSHARED ;CODE PRELOAD SHARED or LIBRARY PWHDENDT ;InitInstance DESCRIPTION 'PWS Endt Array Functions' ;DATA and … |
| | Now, before everyone says anything, I know that goto statements are never needed. Having said that, I was given an assignment to implement them into a sort of some type. I was assigned selection sort and figured that if I wrote the sort without go to's, it would be easier … |
| | Hi there. I am trying to code a program to add or subtract two polynomials using linked lists. For ex. (+4x^2-2x^1) + (+2x^12-5x^5). So far I have a read function which takes in a string and uses substrings to take the coefficient and exponents and insert it to a node. … |
| | Ok. As the title says I tried many times to simply write a program that rewrites a file to remove null characters. I confirmed with a hex editor that the file in question has tons on null characters, on average about 1 of every 2 characters in null. So my … |
| | I am trying to write a smiple email web program. Whenever I try to get an out going email I keep getting the general message that the computer is denying me access. "No connection could be made because the target machine actively refused it " I have tried this at … |
| | How we can write a program to get out put given below in c?? 1 1 2 1 1 2 3 2 1 1 2 3 4 3 2 1 1 2 3 4 5 4 3 2 1 |
 | Hi EveryBody,This is the Code I have written for Simplified DES it is delivering the Cipher of 16-bit size actually it should deliver of size 8 Please help me in solving the Problem and even tell me how 2 reduce the Complexity [code] #include<string.h> char ep[8],p10[10],p8[8],ip[8],ip1[8],pr[10],key1[8],key2[8],p4[4]; int s0[4][4]={{1,0,3,2},{3,2,1,0},{0,2,1,3},{3,1,3,2}} ,s1[4][4]={{0,1,2,3},{2,0,1,3},{3,0,1,0},{2,1,0,3}}; void … |
| | Hey all. I'm fairly new to programming and I just have a little issue. I have a code that will read in a string of character and outut weather the character are alphabetical or not but i also need to use a counter to count how many time each character …  |
| | From the code below, how can I display what elements each processor have? Can someone show me how to do it? I ran it with mpicc -o scatter scatter.c mpirun -np 4 scatter #include <stdio.h> #include <stdlib.h> #include <mpi.h> #define root 0 int main(int argc,char *argv[]) { int rank, p; … |
| | Dear Experts,can we make dll in turbo c and use that dll in vb 6.0. Actually i have a program in c and it has so many constant 3 dimensional array.I have to use some API which can not be used in turbo c so i am planning to make …  |
| | Hello when i use below program to write and read data from USB mass storage device(flash memory) i am getting following error. I've succeeded with usb_bulk_write() but can't utilize usb_bulk_read(). It returns an error. Set configuration usb_bulk_write: 12 bytes written 33 5b 2 1 0 5 1 3 7 f … |
| | Basically I'm trying to see if the first letter is in the dictionary... then if it is.. check if the first and second letter are in the dictionary.. and if it is... check if the first, second, and third letter are in the dictionary... and so on and so forth. …  |
| | how can i replace the array notation with pointer notation #include<stdio.h> #include<stdlib.h> #include <math.h> /* 4 */ void run_sieve(char *, int); /* 5 */ void print_primes(char *, int); /* 6 */ int main() { /* 7 */ int i, top; /* 8 */ printf("compute primes up to: "); /* 9 … |
 | For an assignment for class i wrote this code right but the only problem i have is that i can't get the right value that assignment wants which is distance so far: 0 meters distance so far: 1000 meters distance so far: 0 meters distance so far: 0 meters distance … |
| | I'm still a little confused. Basically this is what I'm trying to do, and I'm having one hell of a time with it... My program has two values "Value" and "N". The goal of the program is to select every Nth number of Value starting with the last, and print … |
| | i wrote this code for sending and recieve mail but i can't get the output that is required for class which is -Test 1-- Creating a new envelope Addressing from Muffin To Howie Inserting the message: Pet me! Affix Postage: 0.33 stamp Sealing the envelope Mailing the envelope --Test 2-- … |
| | I am looking for a project or goal to reach in order to improve me programming skills. I'd say I am still a beginner as it comes to C programming and would like a project to work on but cannot seem to think one, any ideas? |
| | Hello I want to turn on a LED using C, meaning that I want to write on printer port. but the code doesn't work. I use char ledStatus instead of BYTE ledStatus. is there any difference?? what is the problem in this code? #include <windows.h> #include <conio.h> #include <staio.h> #define … |
| | for the program im writing this is what i have to do: i have to write a C program that maintains a table of productID and price in a .txt file. The following menu shows the functionality of the program: 1. Display all products 2. Search product by ID 3. … |
| | Define a function drawRectangle with the following prototype: void drawRectangle(int width, int height, int offest); The function will print a rectangle made out of height rows with '@' character repeated width times on each row. The first @ on each row will be preceded by offset spaces. That means the … |
| | hi, this is the code: #include <stdio.h> main() { int m1, m2, m3, m4, m5, per; printf("Enter marks in five subjects\n"); scanf("%d%d%d%d%d",&m1,&m2,&m3,&m4,&m5); per=(m1+m2+m3+m4+m5)/5; if(per>=60) printf("first division\n"); if((per>=50) && (per<60)) printf("second division\n"); if((per>=40) && (per<50)) printf("third division\n"); if(per<40) printf("fail\n"); } this is the output for: [root@localhost lbin]# gcc -o division division.c … |
| | **I've been over this code several times but still cannont figure out why after the first time, it always prints "Add in sale? Y/N:" twice. Any ideas?** void PrintHeader(); int TotalSales(); float OverallProfit(float totalvalue, float drinkcost, int runningcost); float CalculateCosts();//Not used yet int IncentiveCheck(); //Not used yet #include <stdio.h> #include …  |
| | Do any one have idea of implementing the moore machine by c Programming implementation?? |
 | This is a part of the question of my assignment and i am facing problems on how to access the array in a function. Write a function that finds the 2nd minimum value among the given data items of float type, and returns the 2nd minimum. You should use pointer … |
| | Hi! Im very new in c programming and i have a lot of problems with this easy exercise. I have a struct for a matrix typedef struct { int dim; float **m; } t_matriu; I have a function to create a matrix and to generate random numbers to fill it. … |
| | I'm applying the peterson solution for protecting memory of the critcal section. Each child process should contain a local variable that keeps track of the number of times it interrupts the other child while it is in its critical section. The process should display this value before terminating. I'm having … |
| | Input a 15 character word .. condition should be terminated if enter key, space or when size limit is reached calculate average of alphabet assuming A=1,B=2,C=3.......Z=26 a=27,b=28,c=29,........z=52 print only alphabets using array of characters and using formula to check whether character is alphabet, space lowercase and uppercase you can use … |
| | After much searching I cannot find a particular way to get a datafile into my structure. I understand how to create and manipulate the structure. C does not play nicely with strings is another thing I have noticed. I have tried many examples of how to do this but none … |
 | A piece of C code was creating core dump. When i simply added a few fprintf statement and printed the value of variales used in code to a file, surprisingly the code ran successfully. I tried the scenario number of times and the result was same "when fprintf was present … |
 | this code is working for a counter of 6 bit and i need a counter of 48 bit ... if u have time kindly try it..... i try alot but not succeed #include<stdio.h> #include<stdlib.h> #include<float.h> #include<math.h> #include <time.h> #include <cstdlib> #include <iostream> #include<stdint.h> #include<conio.h> int main() { int a[64][6]; int … |
| | Can any one please help me to optimize the sieve to find the primes upto 10^8 ? I want very efficient algorithm to find all primes till 10^8 for cryptsystem. i have implemented the naive sieve which is taking too much time. please sgare some classic approach with me. i … |
| | Using the code below I need to implement it such that p_poly has only one term of any degree and contains no terms with zero coefficients. I have tried to implement a temporary variable to no avail and was wondering if anyone else had an idea or possibly lead me … |
| | #include<stdio.h> main() char a,m; printf("1st\n"); scanf("%c",&a); printf("2nd\n"); scanf("%c",&m);  |
| | good afternoon gents, first semester cs student here. i'm having a world of confusion to create an X having the left formed with "+", the right side formed with "X" and the center with an "*". with an integer of 7, the output should look like: +-----X -+---X- --+-X-- ---^--- … |
 | want 2 print the following in c using loop |......| |..c...| |..ch..| |..chm..| |
| | Hello, everyone. I am a first year IT Engineering student as well as a complete newbie to C (and programming in general). In my introductory course, I was given an assignment, which involves creating a program to get the elements of two 3x3 matrices from the user and display them … |
| | This program in C finds 2 Longest common subsequence of 2 given strings(say X and Y),entered without any space on the screen individually,altering X and Y strings.I compiled and executed this above program successfully in Dev Cpp compiler as a C file(not a c++ file). |
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