Most voted "c" questions

C is a general-purpose computer programming language used for operating systems, games, and other high-performance jobs and is clearly distinct from C++. It was developed in 1972 by Dennis Ritchie for use with the UNIX operating system.

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  Infinity C loop array

  In this example below, how do I print on the screen all values assigned to n during the loop, after its completion? #include <stdio.h> #include <conio.h> int main (void) { int n; for…

  c array loop for

  asked 3 years, 6 months ago user237530 11

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  56

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  Error in struct C language

  Guys, I’m making a code that the first moment should store the register of patients of a clinic, for this I’m using struct and a variable of this struct to store data for 5 patients. The problem is…

  c struct debug

  asked 3 years, 6 months ago gufdoor 11

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  44

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  I’m having a problem with my code I can’t bring the data from one function to another!

  I’m having a problem with my code I can’t bring the data from one function to another!! in the case of Function sum I cannot print it in function print. Can someone help me 1 - Insert into a vector…

  c array c++ function

  asked 3 years, 5 months ago Bernardo Rodrigues 1

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  "Segmentation fault(core dumped)" error in C language if-Else program

  Greetings! I’m a beginner in programming and found this problem in a code: Segmentation fault (core dumped), after entering the first variable. That is the code: #include <stdio.h> #include…

  c if else segmentation-failure

  asked 3 years, 3 months ago max 3

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  41

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  Test Template Check - Language C

  I have a question I need: Read the proof feedback; Read the students' names; Read each student’s answers. At the end of the program I must print: the name of the student + how many questions he got…

  c array

  asked 3 years, 3 months ago Baianator 1

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  43

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  Program stops reading before the for and "hangs" during the run (C)

  I am performing this exercise in C which is a challenge for college. No note is worth. The purpose is to use the for and find pi. The statement is in the body. For some reason, when I give run in…

  c

  asked 3 years, 3 months ago trevchan 1

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  283

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  Sublime text with Exit code 1. How to resolve

  I’m with this ERROR when trying to compile any code in C in my PC: [Decode error - output not utf-8] [Finished in 0.2s with exit code 1] I installed the MinGW and the modules gcc(C++ e C), but still…

  c compilation sublime-text-2

  asked 9 years ago DMaxter 3

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  98

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  how do I save the data entry permanently

  I want to create a C program in which the user enters his name and this is saved permanently, but the user name is only saved until the program closes. How do I make the program to leave user data…

  c database

  asked 8 years, 11 months ago MARCOS 1

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  76

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  Strict Aliasing do c

  Guys I would like someone to explain me this such Strict Aliasing , and with cast examples , I saw in a book more did not understand right.

  c

  asked 8 years, 7 months ago user37361 327

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  71

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  Complicated program

  I’ve been trying for a while to make a program that does the following: Ask a user to enter a number amount and then to enter the number amount he wants to have in the combination and then the…

  c# c visualg

  asked 8 years, 6 months ago Max 1

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  74

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  Doubts in the resolution of an exercise using while or for

  Good evening my dear, My doubt relates to repetition (while and for). In one exercise I want to print the numbers from one to 10. However I want to group them 2 to 2, or 3 to 3 to follow that logic:…

  c

  asked 8 years, 6 months ago F.Henrique 11

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  740

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  id returned 1 Exit status in C

  My code keeps giving this error and I don’t know what’s wrong: #include<stdio.h> // printf, scanf // Função principal int main(void) { // início do programa principal // Declaração das…

  c c++

  asked 8 years, 6 months ago Zelda 1

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  419

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  Variable declaration problem to compile in Code::Blocks

  #include <stdio.h> #include <locale.h> #include <string.h> int main () { setlocale (LC_ALL,"Portuguese"); int num,escolha; char nome[20]; printf ("\nDigite seu nome: "); gets…

  c variable-declaration codeblocks mingw

  asked 8 years, 5 months ago user48471

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  1001

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  How to convert a String Char by storing it in an Integer array in C?

  How to convert a String Char and add to an Integer array?

  c

  asked 7 years, 1 month ago Nilzon Martins 189

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  How to make an algorithm that receives the name of a day of the week and shows the subject that the student has on the day

  the part of logic I know is simple but I believe I’m wrong in the syntax, in my view it would be if day == second printf("second class") but so not sure, someone could help me, I’m trying to do in…

  c

  asked 7 years, 1 month ago Lucas Sylvestre 1

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  295

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  Variable type float does not receive valuation

  Follows an excerpt from the code: #include <stdio.h> #include <stdlib.h> #define MVAIN 0.8592; #define MVAOUT 1.0282; #define ICMS 0.29; float ProdValue = 0, MVA = 0, ResultValue1 = 0,…

  c c++

  asked 7 years, 8 months ago xDjulio 25

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  556

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  Create a function that returns random number in C

  Good afternoon, I have a project in language c to deliver, and it’s almost all ready, but the teacher said q we have to use a function that returns random number, but the random function I have to…

  c random

  asked 6 years, 6 months ago Leo Arsenio 1

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  451

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  How to give 'value' to a char variable?

  I have a question about how I can give value to the char variable without the scanf command, for example: I have a variable called name and I want to say that it is worth maria. how do I do that?…

  c char

  asked 6 years, 3 months ago Vitor Gonçalves 552

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  270

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  Language C - Structure jumps directly to ELSE ignoring IF parameters

  #include<stdio.h> int main(){ //Escolhe entre nome do personagem e classe int p,c; printf("RPG teste\n"); printf("Digite um nome para o seu(a)…

  c if else

  asked 6 years, 2 months ago João Ninguem 31

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  96

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  What is the mistake in logic?

  Given the values of x real and n natural positive, calculate: #include <stdio.h> int main(){ float x = 0.0; int n = 0; int soma = 0; int fat = 1; printf("Digite um valor:"); scanf("%f",…

  c algorithm logic

  asked 5 years, 10 months ago H.Savvy 1

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  132

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  I need the replay to stop when I type "F"

  #include<stdio.h> main() { int O,i; float F,VI=0,VF=0; printf("Valor Inicial:"); scanf("%f",&VI); printf("Valor Final:"); scanf("%f",&VF); while (VI!=F) { if(VI<=VF) O=1; else O=-1;…

  c algorithm

  asked 5 years, 6 months ago Pedro Sabença 1

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  149

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  Calculate the Timetable in C. Financial year

  I started programming recently and I’m having trouble solving this exercise: Write a program that reads the departure time (hours and minutes) of a flight, the travel time and the difference in…

  c date scanf helper

  asked 4 years, 1 month ago Eduardo Fabricio 1

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  Danger signal on a var in C

  The program and the recursiveness are correct, but even so, a danger signal occurs. #include <stdio.h> void ant_suc (int num){ int ant = num - 1; int suc = num + 1; return printf("O numero…

  c

  asked 3 years, 8 months ago Socorro de Jesus 1

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  51

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  How can I get this code to display the first 100 even numbers not multiples of 10?

  #include <stdio.h> #include <conio.h> int main () { int count; for (count=0;count<200;count=count+2) printf ("%d \t ",count); if (count%10==0) { count++; } getch(); return(0); }…

  c operators count

  asked 3 years, 6 months ago JHK 1

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  104

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  I’m having doubts in this puzzle, I can’t find the error in the program

  ola I’m doubtful in this puzzle I can’t find the error in the program. int main(){ char n_a[500] char cit[500]; float codigo,n1,n2,n_l; printf("-------------------------------------------------\n");…

  c

  asked 6 years, 8 months ago Miguel Garcia Silvestre 13

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  48

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  How to convert DDMMAYY to DD/MM/YYYY in C

  #include <stdio.h> // tetando ex 01 int main(){ int dia,mes,ano, data; printf("Digite a data em DDMMAAA: "); scanf("%d", &data ); dia= data/1000000; printf("%d", dia); } I can’t develop…

  c

  asked 3 years, 4 months ago Megane-12bit 1

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  50

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  Why don’t my strings concatenate correctly?

  I want to display information in the following format: last surname/first name. But it keeps skipping a line in the concatenation. At least, that’s what I think is happening... #include…

  c

  asked 6 years, 2 months ago Lucas Correia 53

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  What’s wrong with this excerpt?? file reading

  What’s wrong with this excerpt?? I need to open a file to read and store in a struct, but if I put the condition in while feof!= 0, when I run it does not work. (this is a function that is being…

  c function allocation

  asked 5 years, 11 months ago Evelyn 9

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  80

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  Gender neutralizer in C!

  I am a beginner in the programming area and took some basic exercises to train my lóg. de Prog. in C. And one of these questions was to develop a program that would neutralize the gender of the…

  c

  asked 5 years, 9 months ago MaSanTM 11

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  658

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  Recursive binary string search in C

  The exercise statement asks me to look for a string in an ordered array of strings, using binary search (compare the string with the element in the middle of the array and then compare the string…

  c algorithm quest recursion

  asked 5 years, 6 months ago JMMM 1

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  It’s not compiling! And I can’t find an answer!

  Do not want to compile... #include <stdio.h> #include<stdlib.h> int main() { system("title-Ajust System:Windows 7");//declarada-Title printf("SYSTEM 00.1-BETA\n\n");//-Name…

  c

  asked 5 years, 5 months ago C0DIFICAD0 1

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  92

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  Beginner Language Error C Code Blocks

  #include <stdio.h> #include <stdlib.h> int main(); {int dinheiro = 200}; int r$100, r$50, r$20, r$10, r$5, r$2, r$1; int inter; while(dinheiro > 0) { if (dinheiro >= 100) { r$100 =…

  c

  asked 5 years, 4 months ago Matheus Accetta 1

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  55

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  While counting zero more

  #include <stdio.h> #include <stdlib.h> int zeros(signed char *V, int n){ int i = 0; while(!V[i] && i < n){ // Ou acabou o vetor caso seja inteiro zero i++; } return i; } int…

  c

  asked 4 years, 2 months ago Douglas Oliveira 1

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  149

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  String-populated chained list(Linked list)

  Hello, I’m trying to create a list that is populated with strings but when I try to print it nothing appears. I appreciate any help available. #include <stdio.h> #include <stdlib.h>…

  c chain-list

  asked 4 years, 2 months ago Lucas VB 1

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  54

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  Doubt how to reverse values in a statistic list in C

  Hi, I’m having second thoughts about a university paper on how to reverse a sequence of numbers into a static list in C. The specific part I’m doubting is : **int SList_reverse(SList* lista, int…

  c list

  asked 3 years, 8 months ago Lucas Moura 3

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  48

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  I can’t use strcmp in C

  I need to show a student’s chart using the license plate, as I do? #include <stdio.h> #include <stdlib.h> #include <string.h> main() { struct ficha { char matricula[9], inf[9];…

  c if else

  asked 3 years, 5 months ago Marcelo Andrade 1

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  355

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  Doubt in LANGUAGE C

  You guys, good night. I am learning C in college and we have been asked an exercise to read the salary of an employee.(until I ask for forgiveness because close to the most experienced, my code must…

  c

  asked 3 years, 5 months ago Mateus Malvezzi 1

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  Write number from 0 to 10000 in c++ language

  I need help to write numbers in full from 0 to 10000. I could only write up to 1500, as you can see below: #include <stdio. h> int main () { float a; printf ("Digite um numero de 1 a…

  c

  asked 3 years, 4 months ago Jesus 1

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  44

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  Calculator in C does not return decimal numbers, when dividing 7/2 it returns me 3. And how do I get the code back to the choice menu?

  I have tried to use some other topics here but unfortunately they have not solved my problem. The most I could was showing 3.00 using float, but I don’t think I used it correctly. Whenever I divide…

  c

  asked 3 years, 4 months ago David William 1

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  30

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  Doubt on how to read a line in C (sscanf)

  My goal is to read 2 user lines, where each line has a number n >= 0 of integers, separated by space. The problem is that, when n = 0 (which is the case of line 2 of the code below), the program…

  c

  asked 3 years, 3 months ago B612 39

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  My while, is showing error, calculate and show on the screen the sum of the n odd power of degree 2 of 10 integer numbers any

  #include <stdio.h> #include <stdlib.h> int main() { int numero,cont, som1, somtotal; int i; som1 = 1; somtotal = 1; char cod; while(cod!='F'){ for(cont = 1; cont < numero;cont = cont…

  c

  asked 3 years, 3 months ago Sam 1

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  32

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  Create a program that reads a number between 2 and 20 and generate a screen with the configuration shown below:

  the program must display the following result: Type a random number between 2 and 20: 7 Exit from the program: 1234567 x123456 xx12345 xxx1235 xxxx123 xxxxx12 xxxxxx1 (NOTE: the value typed by the…

  c loop for

  asked 3 years, 3 months ago Victor Luiz 1

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  2

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  266

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  Help to write code

  How do I use Dev-c++ with this code. How to translate it to C? I started recently with programming, I’m a little tied up to understand some things. Programa CalculoMedia Var N1, N2, MEDIA: Real…

  c

  asked 10 years, 8 months ago matheus ferreira 357

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  33086

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  id returned 1 Exit status C code, help

  my code is giving error id returned 1 and I have no idea why giving this error I did everything right, someone could help me? #include <stdio.h> #include <stdlib.h> int main () { float…

  c

  asked 10 years, 7 months ago matheus ferreira 357

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  94

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  Cast struct em struct

  Guys I’m using sockets in windows and when I get to connect I have the sequinte parameter: (struct sockaddr *)&server(which is my socket) how this cast works?

  c

  asked 9 years, 3 months ago alexsander 11

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  1

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  199

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  Vectors, pointers and memory storage

  I need to solve an exercise where I need to use pointers, vectors and memory storage: Create a vector with n elements, and each vector position will match a pointer to a value of type float. Make…

  c pointer array

  asked 8 years, 11 months ago Léo Eduardo Silva 149

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  54

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  Selection structure, use of the for

  I need to select animals older than (60 months), and return their consumption and monthly production, as I tried to idealize in the equations. However, it does not return any number correctly.…

  c syntax

  asked 9 years ago RafNP 401

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  3

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  59

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  How to create a function that divides two numbers into C?

  How to create a function that divides two numbers into C?

  c function

  asked 6 years, 6 months ago Iure Ramos 19

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  47

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  Is there any more beautiful way for me to change the numbers?

  This is my code: #include <stdio.h> #include <stdlib.h> #include <locale.h> #include <unistd.h> #define tam 20 int main (void){ setlocale(LC_CTYPE, ""); int num[tam]; int…

  c

  asked 7 years, 5 months ago fvsgamers 13

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  1

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  835

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  Function that converts string to lowercase and compares

  struct registro{ /*Estrutura para guardar os dados do usuário*/ char usuario[50]; }atual[1000], *ptr; main() { int v = 0; verific = 0; //posicao e variavel para comp. de string volta_usuario:…

  c string function struct

  asked 7 years, 1 month ago eddunic 17