19,876 Topics
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 | Hey! I'm brand new to programming in C and I am trying to practice coding by hand for my test tomorrow. I understand the basic concepts and I do have some experience in Java (not much) but I am horrible at coding by hand... anyway I am doing my best …  |
 | Below you'll find a small program. The challenge is to predict the output of the program, then explain why it gave the output it did. using System; using System.Collections.Generic; namespace Sample { class Program { static void Main(string[] args) { MyStruct a; a.a = 1; a.b = 2; Dictionary<MyStruct, int> … |
 | i have to do division without divison/multiplication/mod operator. how can i ? int divide(int dividend, int divisor) { int p=1; if(dividend<0) { p*=-1; dividend*=-1; } if(divisor<0) {p*=-1; divisor*=-1; } while(dividend>=divisor) { dividend-=divisor; } return dividend*p; } i have done this, but this giving time limit exceeded when input is 1234567890,1. …  |
| | c++ program that uses the class bookType and tests various operations on the objects of the class bookType. Declare an array of 50 components of type bookType. Some of the operations that you perform are to search for a book by its title, search by ISBN and update the number …  |
| | #include<stdio.h> #include<limits.h> #define num 86090000 int a[5000000]={0}; short int s[99999999]; void sieve() { int i,j,p=sqrt(num); int k=0; a[k++]=2; for(i=3;i<=num;i=i*i) { s[i]=1; } s[3]=0; for(i=5;i<=num;i=i*i) { s[i]=1; } s[5]=0; for(i=7;i<=num;i=i*i) { s[i]=1; } s[7]=0; for(i=11;i<=num;i=i*i) { s[i]=1; } s[11]=0; for(i=13;i<=num;i=i*i) { s[i]=1; } s[13]=0; for(i=17;i<=num;i=i*i) { s[i]=1; } s[17]=0; for(i=19;i<=p;i+=2) { …  |
| | Hi, i have the following text file and i need to put inside a 2D array without knowing number of rows and columns in the text file. (i want C to count this also) i've tried something like that: for (int r = 0; r<2; r++) { for (int c … |
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| | My game is like "space invader". can someone tell me how can i move the ship at the same time i can also shoot bullets.. . TIA  |
| | hii i finished these topics 1.linked list 2.stack and queues.how much time will it take me to finish trees 1.binary tee 2.avl tree 3.b-tree 4.binary search 5.threaded binary tree??? actualy ill try through linked list will it be easy??? |
| | hello im trying to delete a middle node in binary tree .but i have tried it in a linked list but here how to do that does any one them has links or video tutorials??????????? |
| | Hey everyone need some help again with finding the min and max from a text file. its my college lab assignment. here is my code till now. #include <iostream> #include <fstream> using namespace std; int main() { ofstream fout; fout.open("Text.txt"); ifstream fin; fin.open("Lab6.txt"); float c; int count = 0; float … |
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| | I WANT THIS BUT I CAN NOT UNDER STAND PLZ HELP WHAT CHANGES I SHOUL DO HERE I WANT TO MAKE quick estimation by taking the temperature in Celsius, double it and add 32 AND WANT TO Write a program that takes temperature in Celsius; convert it to Fahrenheit both … |
| | A coffee shop offers a range of drinks * Tea - $1.00 * Coffee - $1.50 * Hot Chocolate - $2.00 * Chai Latte - $1.75 * Flat White - $2.20 You will need to create a program that keeps track of the total spent after each order. * At … |
| | how do I set visual studio to read my C code by default instead of C# or whatever its doing? |
| | Hi there i am wondering if there is easy way of writing the following problem in C:- For everytime constant A increases, constant B should decrease by 10 until A is equals to 120 !! Thanks in advance guys I dont really want to clutter my project with tons of … |
| | count.c:11: error: invalid operands to binary >> (have ‘double’ and ‘int’) #include<stdio.h> #include<math.h> int main() { int num,i,count0=0,count1=0; printf("enter number \n"); scanf("%d",&num); for(i=0;i<32;i++) { if(num &((pow(2,31))>>i)) count1++; else count0++; } printf(" the no. of 0's and 1's in the given number are %d %d",count0,count1); }  |
| | #include<stdio.h> #include<string.h> typedef struct { char name[20]; long int ptn; float lt; }census; int main() { int i,n; census city[10]; printf("How many cities\n"); scanf("%d",&n); for(i=0;i<n;i++) { census city[10]; printf("Name:"); gets(city[i].name); printf("\nPopulation:"); scanf("%ld",&city[i].ptn); printf("\nlteracy:"); scanf("%f",&city[i].lt); } } |
| | hii deceptiokn my question is we know we can implement a bubble sort in an array.Is it possible to implement bubble sort in circular doubly linked list????? |
| | I have been pondering this task for awhile now and I just can't get it to work. I am trying to get the function readParameters to read the text from a .txt file and transfer them to the specified variables. I have managed to eliminate almost all the warnings but … |
| | #include <stdio.h> #include <stdlib.h> #include <string.h> main() { char *p1="Name"; const char *p2="Name"; char const *p3="Name"; char *const p4="Name"; const char *const p5="Name"; ++p1; ++*p1; ++p2; ++*p2; ++p3; ++*p3; ++p4; ++*p4; ++p5; ++*p5; } While Compiling above code certain Compilation error came. The errors are: const.c: In function âmainâ: const.c:17: … |
| | #include <stdio.h> main() { char a[4][4]; int row,col; for (row=0;row<4;row=row+2) { for (col=0;col<4;col++) { if ((row==col)||(row!=col)) { a[row][col]='x'; } } } for (row=0;row<4;row=row+2) { for (col=0;col<4;col++) { printf ("%c",a[row][col); } } } |
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| | sir i want a program on....uart(init,shutdown,tx(pin1:1000,pin2:1001),rx(pin1:2000,pin2L:2001) using c |
| | Hi everyone, I'm currently working on a school assignment and came up with this error saying 'list_t has no member named head' but when I actually look at list.h and list.c (my code accessing list is in a separate file), head is in list.c. What did I do wrong? list.c … |
| | **Hi can anyone help me with the C code for calculating time difference between two keyboard key hits????** |
| | Well, I need to code a pyramid that prints the following pyramid WITHOUT the stars *********1 ********232 *******34543 ******4567654 *****567898765 ****67890109876 ***7890123210987 **890123454321098 *90123456765432109 0123456789876543210 In the center, there are prime numbers, from 1 to 9, and after that, they cycle. (1,3,5,7,9,1,3,5,7,9 and so on). I made the code for … |
| | I do have 2 structures here. main linked list is the word. each node of the word list do have a meaning typedef struct node{ char word[20]; struct node2 *meaning; struct node *next; }word; typedef struct node2{ char meaning[100]; struct node2 *next; }means; My problem now is I can't add … |
| | The assignment is to write a computer program that will add 1/3 to itself a large number of times and to compare the result to multiplying 1/3 by the number of times 1/3 was added to itself. It is also to do the same thing with ½.The program is to …  |
| | I have this: typedef struct { int value; } Thing; void doSomething(Thing *ptr) { ptr = (Thing *)calloc(5, sizeof(Thing)); int i; for(i = 0; i < 5; i++) { scanf("%d", (ptr[i]).value); } } int main() { Thing t; doSomething(&t); } Which crashes at the scanf() line. How should I be …  |
| | In Xcode how does one create a header file? and what should it include? or does xcode create the file and use the information from the .c file to create the .h file |
| | I am looking to code a small program in which the pandora songs I listen to are placed into a text file with the title and artist. I have no clue where to go as starting this project and would appreicate any and all help. I have mid level knowledge … |
| | Hi all, I implemented a C program using my mac book. Now, my client wants to migrate to windows OS (MinGW). Program does many calculation using long double: on mac it works fine, otherwise on winz doesn't. I read on internet the problem is that long double type is supposed … |
| | well I've this little homework. "Given a text file, create a function that search an specific ID provided by the user inside the file, If exits, print the entire profile as follow: ID_genre_name_age_height" So In the text file there is only one profile. 19800372_male_David_19_1.75 so, my function should print that … |
| | I am attempting to create a "dirty form" checking class based on an example found at codeproject. I am hung up on the first line of one of the classes public class ControlDirtyTrackerCollection: List<ControlDirtyTracker> I am unsure how to replicate that : List<> part in vb net. Thanks  |
| | **the code works perfectly, just i got something i dont understand...** i'v been trying to get a hold of recursion and sorting for about 3-4 days now, im getting some of it, but still not happy enough.. i searched for some good code for binary search and merge sort on … |
| | I am developing a very simple notepad-type program in C++. The only problem is that when I prompt the user to delete their newly written text file, it doesn't work. Since I let the user pick the name for his/her file, I can't figure out the code to delete it. … |
| | int main() { int i=5; printf("%u",&i); return 0; } will the address which it will print is physical address of that variable or logical address ? I may not be clear in the defination of physical and logical address. thanks if you can help me ;) |
| | Can anyone exactly tell that how do we decide the complexity in this case. like nlogn +n , then the overall complexity is ? like, if O(f(n)+g(n)) can be equal to max(f(n),g(n)) ? Can we say this ? thanks |
| | what is lvalue and rvalue? please explain with simple example. |
| | Can anyone help me with giving me an idea how to make a basic Car Rental Application using Switch, for, if loop in C language. Help will be appreciated. I am newbie and i have been given this problem to solve. pLz Help |
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| | #include<stdio.h> int dp[20]; int lis(int a[],int n) { int i,j,sum=0; dp[0]=1; for(i=0;i<6;i++) { for(j=i+1;j<n;j++) { if(a[j]>=a[i]) { dp[j]=dp[j-1]+1; } else dp[j]=dp[j-1]; } } } int main() { int a[]={ 5, 3, 4, 8, 6, 7}; int i=0; lis(a,6); for(i=0;i<6;i++) printf("%d ",dp[i]); getch(); return 0; } hi , this is the … |
| | I am trying to create a C struct with a member that points to a 2d array. The compiler generates error messages, and I am unable to find out the root cause. I am basically trying to access a struct member to obtain the value of an element in a … |
| | I have a problem with search function by name ,could anyone help me? This my code so far!! Thanks in advance. [CODE] #include <iostream> #include <fstream> #include <iomanip> #include <cstdlib> #include <string> using namespace std; class phonebook { public : phonebook() : MobilNumber(0), lastName(""), firstName(""), pcode(0),Email(""),city(""),Street("") { } void setMobilNumber( … |
| | x^2 + S(x)*x - n=0 where n can be till 10^8 interger . and s(x) is the sum of the digits of the x integer. we have to print the value of x for which this equation holds otherwise print -1. my answer is taking too much time with brute … |
| | Hi all, Requirement: - I have a perl script that I need to run for several hours, for a performance test. - I would like to create a second script in ANSI C to call the perl script. The C script should be able to parse any of the text … |
| | Hi guys, I am a novice in C programming, and would like to ask you for help as I've started studying a computer science at university just few weeks ago. All I need to do is write a math function "pow(double x, double y)" without using any of functions in … |
| | Help me out pls...i dont understand why am i getting sigsegv error for many of my problems on spoj.This is one of them: http://ideone.com/B7KFW http://www.spoj.pl/problems/COINS/ I mean i know that i am accessing data outside the array but where? |
 | #include<stdio.h> #include<conio.h> void main() { int a[20],i; clrscr(); printf("enter 20 numbers: "); for(i=0;i<20;i++) scanf("%d",&a[i]); for(i=0;i<20;i++) printf("%d\n",a[i]); getch(); } |
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