Consider the following instructions. Among the following statements, which one is true?

int * ptr = (int *) malloc(sizeof(int));
*ptr = 21;

In the following program, we assume that all variables are correctly declared and initialized. Which of the following statements is necessarily true?

if (a < b) {
    result = a;
} else {
    result = b;
}

After executing the following instructions, what are the values of the variables str1 and str2 ?

char str1[100] = "abcd";
char str2[100] = "efgh!";
char * p1 = str1;
char * p2 = str2;
while (*p2 != '\0') p2++;
while (*p1 != '\0') *(p2++) = *(p1++);
*p2 = '\0';

Consider an array of integers tab of size n. Assuming that tab[0] is located at memory address @104, what is the value of int * ptr = tab + n ?

What is the value of ?

Soit le circuit suivant :

Donner l'équation de ce circuit.

Soit le circuit suivant :

Quel circuit est équivalent à ce circuit ?

Soit le circuit suivant :

Quel circuit est équivalent à ce circuit ?

Soit le circuit suivant :

Donner l'équation de ce circuit.

Laquelle de ces équations est équivalente à ?