[c] Forum Topics

Help me find the solution to this task in C programming Write a function: int solution(int A[], int N); that, given an array A of N integers, returns the smallest positive integer (greater than 0) that does not occur in A. For example, given A = [1, 3, 6, 4, …

Hi, I am getting erros in coverting the following C++ code to C language. Also what is the alternative of #include<bits/stdc++.h> library in C language? // C++ Implementation to find the // XOR of the two Binary Strings #include<bits/stdc++.h> using namespace std; // Function to find the // XOR of …

hello guys I'm trying to make a code that return the name of the flight that has the most total number of passengers from a file : Alitalia Rome 180 Alitalia Pisa 82 Germanwings Munich 96 Germanwings Frankfurt 163 NorwegianAir Bergen 202 Wizzair London 184 Wizzair Frankfurt 83 Wizzair Lisbon …

Hi, I need to count number of ones and zeros in the following binary number: 11000111101011101100011100011011. Issue: It is correctly counting number of ones uptill 17 bits i-e 11000111101011101 . But when i increase my binary number it gives false answer. Try: I have already use the "long long int" …

i have made the following program but i cant find what is the error... the output is not coming correct... for example Enter A Binary Number 110011 Number of ones are 0 Number of zeroes are 1 [code] void main() { clrscr(); int r, ones=0, zeroes=0; long int n; printf("Enter …

Hello, I am writing this code to allow for a menu based banking system application. Part of the assignment was to check for input validation of the file I would like to open. In this case the user inputs their "customer id" which is stored as "custid" and then this …

I have a question in c programming please help it's urgent.needed by 11 today.

What is the c program for airline ticket reservation system using file handling?

Hey guys, I would like some help regarding saving or reading to or from a bin file. I've read several online tutorials about file input/output, however it doesn't given specific information when applying it to both an array of structures. My knowledge of pointers is weak, as I constantly need …

Hi all, here is a small program I have worked on over these last two days, I have submitted it in the hopes of some constructive criticism and suggestions (please be kind, this is one of my earlier C projects lol). This is a small console application that simulates a …

Hey! I am really stressed out about my TURBO CPP project. I wrote a program on periodic table using file handling. when i compiled it crashed and not the project is unusable. I want to submit it at the earliest. I was hoping some one might drop their out projects. …

Hello everyone. First of all apologies for my english. It is not my native languate and also if i break any good practice. It is my first Post. I'm triying to learn CGI programming in C. Just for learn purposes and i have been triying litle step by step tests. …

I am trying to write a C++ solution for a problem which is written C, I have learnt C++ very long ago(may be 15 years), and the way C++ is evolved now is kind of taking long to understand and not easy as 'C' to develop a solution. Would request …

Hi everyone, I'm new to parallel programming, and my project is the two-dimensional matrix vector multiplication using mpi in C programming language. I have this multiplication function, but I don't know exactly how to run it with mpi. Can you help me, please? I write these commands, $ mpicc -g …

I am attempting to compile C code which accesses the[ libredwg library](https://www.gnu.org/software/libredwg/) through a header file: *#include "dwg.h"* When I attempt to compile my code using *gcc -o ldwg load_dwg.c*, I get the following error: *undefined reference to `dwg_read_file'*. However, if I load the file in Kdevelop, I get no …

#include<iostream> #include<string> using namespace std; class stack { string item; int top; public: stack() { top=-1; } void push(char ch) { top++; item[top]=ch; } char pop() { char ele; if(isempty()) { printf("\n stack overflow!!"); return '@'; } ele=item[top]; top--; return ele; } char peep() { return(item[top]); } int isempty() { …

Hi, while I was looking at a program in my textbook, i encountered this *program to reverse a string using recursive procedure*- #include <stdio.h> int main(void) { void rev(); printf("Enter a line of text:\n"); rev(); } void rev() { char c[20]; if((c==getchar())!='\n') rev(); putchar(c); } I couldn't quite understand the …

while compiling this code i have got an error Declartion not allowed here its a C program title of the program is " LIBRARY MANAGEMENT" #include<stdio.h> #include<stdlib.h> #include<string.h> struct library { char bk_name[30]; char publisher[30]; float price; }; int main() { struct library l[100]; char pb_nm[30],bk_nm[30]; int i,j, keepcount; i=j=keepcount …

**Task** Your task is to write a program that will draw graphs and output them as coloured image in the .ppm file format and display them using a suitable external image viewer (IrfanView). The program will use code generated sine waves, and harmonics of these, to calculate and display the …

Greetings to all, I'm bookday502 and I have had done C language before but I'm really rusty on it. Currently working on a project task but am getting stuck at it. To all kind souls out there, I'll be grateful with whatever pointers you can provide me with Regards, bookday502

I've recently started learning C and I have a simple program that I can't get to work. (I'm pretty sure C++ and C are similar enough at the basic level not to cause any problems in this forum). I've tried it by substituting the scanf("%s", myName) captured string data with …

first of all, I wanna say hi to u all as I'm new to daniweb. I'm a freshman in a college so I don't know much of c yet. So please be understanding in case that I will ask some n00b question later on :) So this is my problem...first …

#include<stdio.h> int main(void) { char a; a="?"; } Error i'm recieving: warning: assignment makes integer from pointer without a cast a="?";

Hi! I want to learn programming. I'm 14 years old and very fond of computing. The only problem I face is *Which programming language should I learn?* or should I learn *Programming* i.e I learn the basics of programming so that I will be capable of learning any programming language. …

I have a function pointer to calculate addition, substraction, etc for 2 inputed arguments and 1 inputed operation. It works fine when the code return the indexed function pointer (with the inputed index) function pointer with both inputed arguments. but when I initialize a variable with as value this indexed …

#include<stdio.h> #include <iostream> #include<stdlib.h> using namespace std; int main() string custname,carmodel,carnum; int days=0,rentalfee=0; cout << "Sila isi nama anda : "; cin >> custname; cout<<endl; do{ cout<< "Sila berikan pilihan model kereta pilihan anda !"<<endl; cout<<"Tekan A untuk model Axia."<<endl; cout<<"Tekan B untuk model Saga."<<endl; cout<<"Tekan C untuk model Exora."<<endl; …

HI everyone, _SBLOCK *allocateMemBlock(size_t size) [ _SBLOCK *block = (_SBLOCK*)sbrk(0); void *memadr = (void*)sbrk(0); void *allocate_mem = (void*)sbrk(BLOCK_SIZE + size); if(allocate_mem == (void*)-1) [ return NULL; ] else [ block->next = NULL; block->isfree = false; block->size = size; block->memoryAddress = memadr+BLOCK_SIZE; return block; ]

This is the error im am recieving: "assignment makes integer from pointer without a cast"

Hi, I want to know what is wrong in this code for reading and printing an array, because it gives "the program stopped working" when I run it. #include<stdio.h> int main(void) { int arr[2][3]; readmat(arr,2,3); printmat(arr,2,3); } int readmat(int **mat,int m,int n) { int i,j; for(i=0;i<m;++i) for(j=0;j<n;++j) scanf("%d",&mat[i][j]); } int …

So, i'm having a bracket issue in line 83:9 or where the slashes are. it's telling me " error: expected identifier or '(' before '{' token", I don't understand how i am receiving this error. If somebody can explain to me how I'm receiving it, thank you. _Bool palindromes(char string[]) …

I am using Microchip board SAMA5D27-SOM1 I am building "buildroot" by refering below showed link (https://microchipdeveloper.com/32mpu:buildroot-custom-project) I would like to add gcc or compiler to run c program related to libusb in that.How to add gcc or other compiler during building.

I have been at this for weeks and I am able to get most of the errors cleared on my own. I am stuck on these errors and I am unable to find out what is really wrong and going on. I am still pretty new at this. The code …

I dont understand the appearent discrepency in the treatment of the variabe x, y, and z. Why y isn't treated as x and z? #include <stdio.h> #include <string.h> int main() { char result[100] = "Philippe Dupont 30"; char x[50]; char y[50]; int z; /*We use sscanf to give a value …

i need help coding the i2c bmp280 i did start the code myself i just need a way forward

Hi, I was learning insertion sort in C. But I need help to clear up my confusion in the following code: int i,j,n; puts("Enter the number of elements: "); scanf("%d",&n); int A[n]; readarr(A,n); int sortedA[n]; sortedA[0]=A[0]; for(i=1;i<n;++i) { j=i-1; while(j>=0 && sortedA[j]>A[i]) { sortedA[j+1]=sortedA[j]; /*marked line 1*/ --j; } sortedA[j+1]=A[i]; …

Anyone can fix this code. thank you, only TURBO C program #include<stdio.h> #include<string.h> #include<stdlib.h> #define true 0 #define false 1 struct product { char id[10]; char name[20]; int quantity; int numSold; float price; int discount; float sales; }; struct product prod[30]; int count = 0; FILE *f; int writefile() { …

So, with my program, I want to calculate prime numbers and would only like to see it come out with only one prime number. I tried to put it in a if statement at the end like "if (number_of_primes=number_tester) printf("%i/n", test_int)", it did not work. and at it's current state …

In the below program i am allocating memory for pointer to pointer properly and then allocating individual pointers and setting values properly, even though i am getting the garbage value to one of the structure member, i dont understand where exactly i am going wrong. Request for any expert help. …

Hi, I was learning 'Selection Sorting' in C and while writing my program I constantly get the error- >[Error] expected expression before '{' token Here's my program- #include<stdio.h> void main(int A[10]) { int i,j; A[10]={2,4,1,9,0,6,5,7,3,8}; for(i=0;i<9;++i) { int Min=i; for(j=i+1;j<10;++j) { if(A[j]<Min) { Min=j; } int temp=A[i]; A[i]=A[Min]; A[Min]=temp; } …

write a C program to sort a csv(student.csv)file using QSORT on LINUX .. please help.. student.csv file containing(student name, percentage)

Hello Everyone, I have an FPGA application that has some function (i.e: Matrix Multiplication) now I want to create the memory interface for FPGA communication based on the model pushed into the FPGA? For example, If we have the size of 1024 and the size of data is 10 bit …

write a program to convert celsius to fahrenheit in c using do loop

i'm creating a program using Code Blocks with GNU\GCC compiler. i'm using Windows 10 with Windows Defender. my program create a txt files(instead a text files, we can speak binary files too), but the Windows Defender can delete the file(and i have sure), for avoid these problem i must disable …

This Program implements the Predictive Parsing Of the grammar E->E+T/T F->F*T/F F->id(Identifier)

Hello Everyone, I want to know about more binary search in C programming and their various variation and how its work? I am sharing sharing code. Can anyone tell me is it right? Requirements ask for using binary search on an unsorted array, then it needs to be sorted first …

Hi. I wanted to review the idea of "Link List" but using C++ and not Java. I borrowed a header file from a textbook to test how a link list works (I know that if I don't paste the whole code [its not my code anyway. It was from a …

Programming Exercise ATM Machine In this assignment you will create a program that allows a user to do the following: 1) Create a bank account by supplying a user id and password. 2) Login using their id and password. 3) Quit the program. Now if login was successful the user …

What's wrong in the following program- #include<stdio.h> main() { int n,d=2,r; printf("Enter a number to check its divisibility:"); scanf("%d",&n); for(d<n/2; d++;) { if(n%d!=0) { r=1; continue; } else { printf("%d is not a prime number.",n); break; } } if(r==1) { printf("%d is a prime number.",n); } } I want it …

I'm trying to make a program to calculate sum of n terms of the series (x + (x^3)/3! + (x^5)/5! +...) - #include<stdio.h> #include<math.h> main() { int x,r,n,fct=1; float term,sum=0; printf("Enter the value for x:"); scanf("%d",&x); printf("Enter the number of terms to calculate sum upto:"); scanf("%d",&n); for(r=2(n-1)+1;r%2!=0;r++,n++) /*as r's value …

Hi, I'm learning C and I was trying to print this program using if-else statement: void main() { char* opinions; printf("What do you think of me?"); scanf("%s",&opinions); if (opinions="Ugly") { printf("Huh, I'm way more beautiful than your heart"); } else if (opinions="Blacksheep") { printf("Sometimes Blacksheeps end up shining the most!"); …