19,876 Topics
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| | So, I have to allow a user to enter numbers into an array. I then have to store that array in a text file and a binary file. How would I go about doing this? I have the array part of it down, it's just storing the array into the …  |
| | im keep getting ror: expected identifier or '(' before '.' token|error: expected expression before what am i doing wrong? #include <stdio.h> #include <conio.h> #include <stdint.h> int main() { typedef struct { char name[20]; char year[20]; int inout[20]; }movie_rent; movie_rent[20]; int i,sum=0; FILE *myfile; if ((myfile = fopen("mov.txt", "rt")) == NULL) … |
 | this code gives the correct result upto size 6 (i'v run this a few times, and 6 seems to be the boundary), although the intermediate steps are all insane! then onwards, from size 7, it returns minimum value 0 /*minimum of an array using recursion*/ #include<stdio.h> #include<stdlib.h> int findMin(int* arr,int … |
| | I am trying to copy the column, from bottom to top element,to the row , but it does not work. Plase help #include <stdio.h> int main () { int Image1[3][3]={{1,2,3},{4,5,6},{7,8,9}}; int Image2[3][3]; int i= 3; int j =3; int k =0 ; int l; while ( k <= 0){ i=0; …  |
| | Where can i download the various header files for dev c? sys/types.h sys/socket.h netinet/in.h arpa/inet.h and also structure sockadder and it's derivatives |
| | Hi guys, So i wrote a little code, not fancy, to convert a signed decimal to its binary representation using two complements. char immeStr[17]; int main(){ int neg = 0; int i = 0; int bit = 6; char binaryNum[bit+1]; int z1[bit+1]; int temp = -30; int k; int cout …  |
| | #include <stdio.h> int main(void) { int ten = 10; int two = 2; printf("Doing it right: "); printf("%d minus %d is %d\n", ten, 2, ten - two ); printf("Doing it wrong: "); printf("%d minus %d is %d\n", ten ); // forgot 2 arguments return 0; } hello actually i coulnt … |
 | suppose the input is 1,2,3,5-14,16-20,-25,31- :the program must print output: 1 2 3 5 6 7 8 9 10 11 12 13 14 16 17 18 19 20 0 1 2 3 ...........25 31 32 33..... til end of file I WAS REJECTED FROM MY LAST ROUND OF INTERVIEW BECAUSE … |
| | I am trying to get my program to run when I input two integer numbers in the subroutine, and then do the following math (x+y)/5. Dont know where I am going wrong. #include<iostream> using namespace std; int Divide(int X,int Y); int main() { int X; int Y; cout<<"first number:"; cin>>X; … |
 | I am having problems with pointers and i am getting two errors saying "invalid argument type of 'unary *'" float getProfit(float* bushels, float price) { int i = 0; for(i = 0; i < 20; i++); { *bushels[i] = *(bushels[i]*price); } return 0; } any ideas on a solution? i … |
| | i want to print a 'double' variable upto 8 decimal places without trailing zeroes. for eg: if a= **10.1234** then print **10.1234** if a= **10.00** then print **10** if a= **10.11111111111** then print **10.11111111** (max of 8 decimal places). how to do it? i searched for it and found this: … |
| | I understood that when you pass the name of the array as an argument to a function we are actually passing the base address of the array, which inturn gets collected by a pointer variable and thus s[i]=*(s+i)=*(i+s)=i[s]. The problem begins when we turn to 2-D arrays. When we want … |
| | My questions are how to find the nth prime number? I have figured out how to find a list prime numbers. I'm just stuck as for being able to change my code to only print out the, say, 15th, or 500th prime not every previous prime as well. Any help/feed … |
 | Hi. Nice to meet you. I'd like to know if I'm doing the allocation of memory from data to new_data correctly and why new_data only has one value since the memory of data was copied before to new_data. set size: 10 set[000] = 000 set[001] = 001 set[002] = 002 … |
| | is `char** val` the same as `char* val[ ]` when is the formal ( `char** val`) used |
| | **Write a C program for an automatic teller machine that dispenses money. The user should enter the amount desired (a multiple of 1000 naria) and the machine dispenses this amount using the least number of bills. The bills dispensed are 1000s, and 500s. Write a function that determines how many … |
| | Hi guys. I would like to ask several questions about this. Im on my final phase of the proj, will appreciate some information. Qn 1: How do i make the user continually input till he types 'exit' to exit? Qn 2: If he types wrongly, or database couldnt find the … |
| | To Check the Given Triangle is Isocles , Equilateral or Right Angled Triang  |
| | int x = 0; int i,j,p; int buf[4]; int *array[5] = {0}; for (j = 0; j < 3; j++){ for (i = 0; i <4; i++) { buf[i] = x++; } array[j] = buf; } int* temp; temp = array[1]; for (i = 0; i<4; i++) { printf("%d\n", *temp); … |
| | How to accept strings and print then them please explain me with example if possible Thanks in advance ............. |
| | hellow im am studen of the 4th sem information technology i wann a made a project in c turbo.how can i made  |
| | hello, I am working on a project that involves a bit of directory manipulation. Until now i only had to create create directories as per user input, so till now the commnad mkdir worked fine: mkdir("c:/test"); But now i have to do some manipulations on the string to get the …  |
| | Is it possible to convert a postfix expression to prefix expression using only recursion? If possible what's the algorithm?  |
| | Hi, I have given a task to write a code about approximate of pi. this is what I wrote from the other example. the task is to : (pi^2)/16 = ((-1)^k)/k+1 (1+1/3+1/5+...+1/(2k+1)) Write a program which computes and prints an approximation of pi using a finite number of terms from … |
| | i have put one FUNCTION (Display) in the code's but still not functional is there any way by which we can convert BCD to DEC code's and can be printed out as output I know its wrong please help me to make it right thanks [ the CODE's is for … |
| | This code is crashing, please tell me for what all I need to assign memory. Thanks #include<stdio.h> #include<conio.h> #include<stdlib.h> struct s1 { char *p1; }; struct s2 { struct s1 *p2; }; struct s3 { struct s2 *p3; }*p4=NULL; int main() { char a='a'; p4=malloc(sizeof(struct s3)); p4->p3->p2->p1=&a; printf("%c",*(p4->p3->p2->p1)); return 0; … |
| | Hi, can you help me please? how to make a program where you can enter the usrnme, then enter the paswrd, but the paswrd will be written in asterisk and only read afer pressing ENTER; if usrnme is correct and pass is correct, it will say "welcome" if usrnme is … |
| | I want to write a program in C that will take a .wav file as an input and will output a C array i.e. raw PCM samples. I know the bitrate and have other information about the .wav file beforehand and I just want the PCM samples. The PCM samples …  |
| | Firstly, i'm really new to all this bash/unix/c stuff so i will probably get some words meanings wrong here, but anyway: Im trying to make a client pass simple shell commands to the server, which executes them. They communicate locally on the same machine through a socket. I can make … |
 | **Algorithm** step1: display 3 choices step2: user inputs one choice step3: Choice is store in one variable step4: selected choice is transfered to switch function step5: choice is compare to cases step6: a text document is created stating you choice. **This is layout of the code:** #include<stdio.h> void main() { … |
| | Hey guys i have a small problem i would love some advice..this code outputs a hollowed box the problem is i cant get the right most column of the box in the right postion without tabbing it across..which will create problems if i want the user to determine how big … |
 | #include<conio.h> #include<stdio.h> #include<string.h> int mistakes_ctr=0; int x=52, y=22, i; void printM(){ gotoxy(20,20); cprintf("m"); } void printP(){ gotoxy(22,20); cprintf("p"); } void printL(){ gotoxy(24,20); cprintf("l"); gotoxy(34,20); cprintf("l"); } void printA(){ gotoxy(26,20); cprintf("a"); } void printN(){ gotoxy(28,20); cprintf("n"); } void printT(){ gotoxy(30,20); cprintf("t"); } void printO(){ gotoxy(32,20); cprintf("o"); gotoxy(36,20); cprintf("o"); } void printG(){ … |
 | Is the sizeof operator in c a compile time or run time operator..Because the following code works fine with a gcc compiler int a; scanf("%d",&a); printf("%d",sizeof(a)); But I found in one of the tutorials thatsizeof is compile time??Can someone please clear the confusion? |
| | I have this file 3 10 10 10 0 0 0 0 0 1 1 0 0 1 1 1 1 0 0 0 1 1 and I want to read the first line as intger in X the 2nd line in camp1 the 3rd line in camp2 line 4 … |
| | this is the question. www.codechef.com/problems/CTEAMS i wrote this code http://ideone.com/h5Gimy it gives success but when i pass an input it gives sigsev error.please someone help!! |
 | Hey everoyne. I'm wondering If it's possible to construct a switch statement which takes in a character and determines weither that character is a number or not, or an alphabetical number. switch(i) /*character*/ { case '0': /*ok it's a number, doesn't have to be zero, any number from 0-9*/ case … |
| | Like I have this eBook called C Programming Language 2nd Edition and It does not tell me where to write the programming codes. Do you have to write It In a notepad? |
| | I am planning to write an application in windows which will temporarily block the configured websites irrespective of what browser I am using. As I am completely a newbie in this I want to know where to start. Please provide me with any useful links which can help me. If … |
| | hai i am a student working on my project on C# coding in which i need to display the datas of the solar inverter readings which i already uploaded to mysql database and from that i need to show the datas through C# coding. i did the coding for displaying … |
| | #include<iostream> #include<vector> #include<stdio.h> #include<string.h> #include<stdlib.h> #include<algorithm> #define READY 1 using namespace std; typedef struct task_node { int task_id; int period; int wcet; int arrival_time; int deadline; int state; int ceu; int slacktime; }task; void read_input(vector<task> &); void print_task_vec(vector<task> &); bool comparebyperiod(const task&,const task&); bool comparebydeadline(const task&,const task&); bool comparebyslacktime(const task&,const …  |
| | why it doesnot works for values other than 0 and -1 i mean when i tried to print values of array 'a' after memset() then it shows incorrect values. int a[100]; memset(a,0,sizeof(a)); ///it works memset(a,-1,sizeof(a)); ///it works memset(a,1,sizeof(a)); ///it doesnt  |
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| | #include<stdio.h> void main() {int a[100];int i;int getchar;int sum; for(i=0;i<=100;i++) while {((a[i]=getchar())!=EOF)} i++; printf("your no is =%d",&a[i]); i=0; sum=0; while(i<=100) {sum=sum+((a[i])^3); } i++; if(sum==a[100]) printf("number is armstrong"); else printf("number is normal"); not working,can someone give me an alternative usiing arrays,i got the for loop,want to execute using arrays! |
 | i have a undirected graph and i want to print a cycle with length >=k (given) , can you suggest me a algo ? i dont want any code, snippet. i am hoping for hint and algo for this. thanks. it is guaratned that cycle of length >=k exists.. thanks. |
| | I need to develop an application to send a picture from my PC to phone. i'm planning to use c# in .net but i couldn't find any library. I found links pointing to microsoft.windowsmobile.sharedsourse.bluetooth dll wich is not having any functions and in 32feet.net i don't know how to use …  |
| | Hi, I came across one question from codechef. [Click Here](http://www.codechef.com/problems/J7) Here, we are given P and S. Let l, b, h be the length, breadth, height of the box. we have these two inequalities 4*(l+b+h) <= P 2*(l*b+b*h+h*l) <= S We have to maximise the volume which is l*b*h. We … |
| | suppose i declare an array of size 10(a[10]) and i try to use even 11th or 12th element...that is i try to put some data...and later extract from a[10] or a[11] ..is it possible..ans with respect to both c and c++.. |
| | I have a project and a part of it is related to sha 1 encryption using openMP. Any help would be highly appreciated. |
 | Hello everyone. I made this "text file de/encryption" program as my first big C project. It's working pretty decent, and takes a lot of special characters and tabs without any problems. I have tested the code by encrypting and then decrypting some source code, and compared the output with the … |
 | Hi, I have a piece of code here. #include <stdio.h> int main() { // jimmy and masked_raider are just aliases for the same memory address. They’re pointing to the same place char masked_raider[] = "Alive"; char *jimmy = masked_raider; printf("Masked raider is %s, Jimmy is %s\n", masked_raider, jimmy); masked_raider[0] = … |
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