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.
Learn more…4,811 questions
Sort by count of
-
-1
votes1
answer109
viewsWhat’s wrong with my code?
I want to make a simple hangman game with some pre-determined words, right at the beginning still... escolhendo palavra... SIGSEGV on thread : 1685113120" My code is this #include <stdlib.h>…
-
-1
votes2
answers63
viewsFunction of free() in abstract types
I expected the following code to record the students' data, and then immediately erase it from memory: testTurma. c #include "aluno.h" #include <stdlib.h> int main(){ aluno *turma; turma =…
-
-1
votes1
answer77
viewsI am novice and am having trouble running my program properly! Help
My code has to do the following: Escreva um programa que receba do usuário 4 nomes (nome1, nome2, nome3, nome4) e 4 salários (sal1, sal2, sal3, sal4) de funcionários de uma empresa. Exiba na tela a…
casked 6 years, 1 month ago Jackson Wagner Silva 1 -
-1
votes2
answers2004
viewsHow to create a string array in C?
My code is giving error in lines 15 and 53 #include<stdio.h> #include<conio.h> #include<locale.h> int main() { setlocale(LC_ALL,"portuguese"); struct datas{ int dia; int mes; int…
casked 6 years ago Julio Faria 21 -
-1
votes2
answers60
viewsSimply Chained List in C - Do not compile correctly
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <locale.h> typedef struct nodo Nodo; struct nodo{ int valor; Nodo *proximo; }; void cria_lista(Nodo…
-
-1
votes1
answer87
viewsCode takes time to execute, points error but then displays the result
Code on net Beans runs, but it takes time to show the result. Error appears in the netbeans console, but if I leave the program running after a while it shows the result: #include <stdio.h>…
-
-1
votes2
answers81
viewsHelp with basic C program of the introduction to programming class
The exercise asks a program to read a binary number in the form of a 'char' vector from the keyboard and return its corresponding to base 10. I wrote a code but the values it returns are wrong,…
-
-1
votes1
answer3351
viewsVisual Studio Code Extension: "Code Runner" does not compile C
I’m trying to run a code on C in the Visual Studio Code with the extent Code Runner but I’m not getting it. I’ve installed the Mingw correctly, I can verify it in cmd via g++ --version But I still…
-
-1
votes1
answer275
viewsConcatenate two sequential static lists
I’m having trouble making a function that receives two lists and returns a third with the elements of the first concatenated with the elements of the second. I made the code but it returns me the…
-
-1
votes1
answer66
viewsFunction does not return the value I want
#include<stdlib.h> #include<stdio.h> int calculo(int pontos, int placar1, int placar2); int main() { int c; int placar1, placar2; char bet1n[30], bet2n[30], bet3n[30], bet4n[30],…
casked 5 years, 11 months ago Mateus Eleuterio 11 -
-1
votes1
answer139
viewsint storage in c
I’m starting in C and making a program that records some information (all this information goes to a file). each record has a registration number, starting with the record 0001. The problem is that…
casked 5 years, 10 months ago Christian Fleury 19 -
-1
votes2
answers78
viewsDoubt in vector in c
Create a counter function that works as follows: the initial value of the counter is 5. every time the function is called its counter shall be decreased. the counter shall reset automatically: when…
-
-1
votes2
answers237
viewsCode conversion is giving error
I am trying to convert a code from C++ to C and doubts have arisen. The code starts like this: #include<bits/stdc++.h> using namespace std; void function(int x, int y, int z, char &teste,…
-
-1
votes1
answer126
viewsHow can I store token values in an array?
#include <stdio.h> #include <stdlib.h> #include <math.h> #include <string.h> #include <assert.h> typedef struct{ int id; char nome[20]; char telefone[9]; }tipoCliente;…
-
-1
votes3
answers109
viewsSimple Arduino program
I’m new to programming.... The program I’m trying to write to run on the Arduino, will command a circuit that has two buttons. The 1 button is to turn on an Led and it runs the sequence of flashes.…
-
-1
votes1
answer42
viewsRead File with Integers and Strings in C
I need to read a file with data where an integer is the product ID on a line, the product name on the next line and the product authorizer on the line following the product name. Totaling 3 lines…
casked 5 years, 10 months ago Rodolfo Antunes 1 -
-1
votes1
answer118
viewsRead each row of a file with different types in c using vector
Good afternoon, I need to create a C code that works as follows: Read a file . dat that the first column is the clue, the second the amount of words in that clue, and the following columns are the…
-
-1
votes2
answers92
viewsPassing a vector to a function in C
In my C practices, I decided to practice using a vector through a function, using the method of passing by parameter. The goal of the program is to receive the 5 elements of a vector, then show the…
-
-1
votes1
answer2030
viewsRead only specific lines of . txt files in C
Hello, I want to read a file .txt and get a specific name on it. I have the following code that does this, but checks on all lines of it. #include <stdio.h> #include <stdlib.h> #include…
-
-1
votes1
answer902
viewsHow to compare a string position to a? C character
The parse_names function is not able to compare the position of the string 'a' with a letter, I want to count how many letters 'A' appear in the string and exchange the letters 'E' for a 3 .…
-
-1
votes1
answer1570
viewsRandom numbers within a vector in C
Hello would like to know what would be the ideal method to generate random numbers within a vector in C using the function Rand(), I get an error when I try to run the code below. follows the code:…
-
-1
votes1
answer1110
viewsProblems with CRUD in C language
Speak people, I need to do a CRUD with these characteristics there and I’m not getting, can you give me a light at the end of the tunnel there? thank you in advance. My problem is not in storage,…
-
-1
votes1
answer193
viewsDifficulty in C: read two functions at the same time[Completed]
I would like to know how to perform two functions at the same time in c Being one while and the other a scanf: #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include…
-
-1
votes1
answer30
viewsSequential reading of data from a file
I have to read a file in which the first line represents the number of registered students and in the following lines occurs the name of the student followed by his grade in the two tests. It seems…
-
-1
votes1
answer787
viewsRECURSION IN C - COUNT EVEN NUMBERS OF A VECTOR
#include <stdio.h> #define N 6 int verificaPar (int v[], int n, int qtd, int indice); // protótipo int main() { int vetor[N] = {13, 6, 8, 3, 4, 9}; // vetor igual do exercicio int resultado ;…
-
-1
votes1
answer253
viewsDifficulties with quickSort algorithm in C
I need to do a college work involving quicksort, but I’m finding difficulties in the code: #include <stdio.h> #include <stdlib.h> #define RA 8 int quickSort(int *vec[], int left, int…
-
-1
votes1
answer52
viewsVariables with absurd values in the execution of the program in C
I’m doing some C exercises and the execution of my super ultra 5-line program is in trouble. I’ve seen several questions around suggesting that it might be an unrelated error that would be…
-
-1
votes1
answer63
viewsAdding Positives in Range
I am making a program in C Language, but the site informs that the output of the program is not accepted. Adding Positives in Range Follows the code: #include <stdio.h> int main(){ int num1,…
casked 5 years, 9 months ago betafico123 3 -
-1
votes2
answers34
viewsProgram not to loop, even by typing the interrupt key!
#include <stdio.h> #include <string.h> typedef struct { int codigo; char departamento; char nome[30]; float salario; }DadosFuncionario; int main () { FILE *fp; DadosFuncionario…
-
-1
votes1
answer27
viewsBinary file read error!! I don’t know what’s going on, the binary file exists and my program gives error
include include typedef struct { int code; char departamento; char nome[30]; float salary; }Dadospunctionary; int main () { FILE *Fp; Data char come out; int Qt; fp = fopen("problem2.bin", "rb");…
-
-1
votes1
answer63
viewsStruct member print print something strange
I’m doing a job that uses struct it’s all right but when it comes to listing the last one comes out with a strange character. My code is like this struct livro_cadastro{ int codigo; char obra[30];…
-
-1
votes1
answer88
viewsPrinting garbage in matrix string in C
Code Issue: Create a program that receives from user two vectors of size 5, whose elements are the names of persons (maximum size 10) who will dance in a party gang Junina. After this, the program…
-
-1
votes2
answers1499
viewsBingo booklet in c
I was solving a college exercise on matrices and I ended up crashing. Ex: Build a program to automatically generate numbers between 0 and 99 from a bingo card. Knowing that each card should contain…
-
-1
votes2
answers212
viewsC# How to make a string function execute active command?
I’m developing a C# project and I’m stuck in a mistake when it comes to moving from one form to another. The main form is called Main and the new Form1... well... I can send a variable string to…
-
-1
votes1
answer82
viewsUsing the FOR command
I am developing solving issues in Language C. The question asks: A palindrome is a word or phrase that has the property that can be read from right to left and from left to right. For example, the…
-
-1
votes1
answer214
viewsC Language Database
I’m trying to solve this question: But I’m not getting the proper compilation done. My code is this: #include <stdio.h> typedef struct{ int idade; char nome[50]; char sexo[2]; char…
-
-1
votes1
answer39
viewsProgram does not count points in the correct way
In this code I should read the number of grades of 3 students compare with a template of 3 questions and check how many points the students made, but only the grade of the first student appears.…
casked 5 years, 7 months ago José Augusto Valim 29 -
-1
votes1
answer68
viewsI am unable to print the notes, which would be n1 and N2 of the list, I do not know if the parameter sent to the function is correct
#include <stdio.h> #include <stdlib.h> typedef struct nota n; struct nota { float n1; float n2; float mf; struct nota…
-
-1
votes1
answer45
viewsHow to join a string to a variable of type BYTE path[]
Guys, my question is how to put string1 from a function strcat(string1,string3); within a string of grabbing windows code user name:system("reg add…
casked 5 years, 7 months ago Mayara Rabelo 19 -
-1
votes1
answer30
viewsString is not being saved to a text file
I made this code whose purpose is to read any string (Maximum size 30), and to write this string in a text file. After reading the string, the program is terminated normally (No errors), but when…
-
-1
votes1
answer182
viewsInsert an item in the chained list
I am trying to insert a new element a chained list without head, I can even insert more when leaving the function the pointer points to null again void cadastrar_produto(char codProd[], char…
-
-1
votes1
answer163
viewsHow to use a function to fill all positions of the dynamically allocated vector?
Good afternoon guys, I’m seeing for the first time the C language and I’m not making progress on a job. First you are asked to create a function int receive Operator() This function will request the…
-
-1
votes1
answer136
viewsYou can analyze my C calculator and help me finish the project
#include <stdio.h> int main (){ float n1=0; char operacao; float n2=0; printf("*CALCULADORA\n"); printf("n1:"); scanf("%f", & n1); printf("operacao:"); scanf("%c", operacao);…
casked 5 years, 6 months ago Lucas Developer 11 -
-1
votes1
answer47
viewsDynamic allocation in wrong scope
I dynamically allotted a vector of structures with qtdeFuncionarios positions within a if, but now I need to use it within another conditional structure and the compiler accuses scope problem. How…
-
-1
votes1
answer79
viewsRead string pointer in C
This is the question: 4. Make a program that receives from the user the size of a string and call a function to dynamically allocate this string. Then the user must inform the contents of this…
-
-1
votes1
answer267
viewsinvalid type argument of unary '*' (have 'double') in C
I do not understand why this problem is happening, I have already done it in other programs and never had problem, below this function q is giving error, if necessary put all the code. double…
casked 5 years, 6 months ago michel brito 3 -
-1
votes2
answers84
viewsHow many cases can you use on a switch?
#include <stdio.h> int main (){ char sangue, nome[30]; printf("Informe nome:\n"); scanf("%s",& nome); printf("Informe o sangue de acordo com a tabela\n"); …
casked 5 years, 6 months ago Lucas Developer 11 -
-1
votes1
answer449
viewsReturn a string in C
Good morning, I want to return a word that is in a file,. #include <stdio.h> #include <stdlib.h> #include<locale.h> #include<string.h> int *abrir_arquivo(){ //o cursor ira…
-
-1
votes1
answer129
viewsProgram C exclude vector value and decrease it in one unit
Staff with a following problem I have to make a program that implements a routine that le 10 numbers of a vector and then receives a value to be searched in the vector if it finds erases this value…
-
-1
votes1
answer176
viewsTraverse a vector by dividing the search into threads
Hello, I have a problem, I have a college assignment where I have a very large vector, where I have to get each processor thread through a part of that vector increasing the speed of the search, but…