
Quiz de Programação em C
Authored by Amanda Xavier
Information Technology (IT)
University
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em C, qual das seguintes declarações de variáveis é inválida?
int nota1;
float salário_total;
char ende'reço;
double _valor;
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere o seguinte código em C: #include int main() { int x = 5, y = 3; x = y - x; y = 2 * y * (-x); printf("x = %d, y = %d", x, y); return 0; } Qual será a saída desse programa?
x = -2, y = 12
x = -2, y = -12
x = 2, y = 12
x = 2, y = -12
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a função do operador % em C?
Realizar a divisão exata entre dois inteiros.
Retornar o quociente da divisão entre dois inteiros.
Determinar o resto da divisão inteira.
Converter um número decimal para inteiro.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual será a saída do código abaixo, assumindo que o usuário digita o valor 3 quando solicitado?
#include <sdtio.h>
int main() {
int x;
scanf("%d", &x);
x = x + x;
printf("%d\n", x);
return 0;
}
3
6
9
Nenhuma saída, pois há erro no código.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
No código a seguir, qual será o valor final de y?
#include <stdio.h>
int main() {
int x = 2, y = 6, temp;
temp = x;
x = y;
y = temp;
return 0;
}
2
6
8
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual será a saída do programa a seguir? #include <stdio.h>
int main() {
float x = 2.78;
printf("%10.2f\n", x);
return 0;
}
____2.780
______2.78
_______2.78
2.780000
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em relação às variáveis de ponto flutuante em C, qual afirmação está correta?
O tipo float tem maior precisão que o tipo double.
Para imprimir um double no printf, é obrigatório usar %lf.
A precisão de long double é menor que a de double.
O tipo float ocupa menos memória que o tipo double.
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