
Pointers V2
Authored by Miltiadis Katarachias
Information Technology (IT)
1st Grade
Used 3+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Τι θα τυπώσει το παρακάτω πρόγραμμα;
int arr[] = {1, 2, 3, 4};
int *ptr = arr;
printf("%d", *(ptr + 2));
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Ποιο είναι το αποτέλεσμα του παρακάτω κώδικα;
char str[] = "Hello";
char *ptr = str;
printf("%c", *(ptr + 1));
H
e
l
διεύθυνση
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Ποιο είναι το αποτέλεσμα του παρακάτω προγράμματος;
int arr[2][2] = {{1, 2}, {3, 4}};
int *ptr = &arr[0][0];
printf("%d", * (ptr + 3));
Σφάλμα
2
3
4
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Τι κάνει η έκφραση *(str + i) για μια συμβολοσειρά str;
Επιστρέφει το μέγεθος της συμβολοσειράς σε bytes.
Υπολογίζει το μήκος της συμβολοσειράς.
Επιστρέφει τη διεύθυνση του i-οστού χαρακτήρα της συμβολοσειράς.
Επιστρέφει τον i-οστό χαρακτήρα της συμβολοσειράς
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Ποιο είναι το αποτέλεσμα του παρακάτω κώδικα;
char str[] = "Array";
char *ptr = &str[3];
printf("%s", ptr);
r
ay
ray
A
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Τι θα τυπώσει το παρακάτω πρόγραμμα;
char str[] = "Strings";
char *ptr1 = str;
char *ptr2 = str + 4;
printf("%ld", ptr2 - ptr1);
4
S
n
2
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Ποιο θα είναι το αποτέλεσμα του παρακάτω κώδικα;
char arr[][10] = {"One", "Two", "Three"};
char *ptr = arr[2];
printf("%c", *(ptr + 1));
Three
h
One
W
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