Eroare de compilare: user.cpp: In function 'void mul(int*, int*)': user.cpp:21: error: 'NR_CIFRE' was not declared in this scope user.cpp:23: error: 'memset' was not declared in this scope user.cpp:37: error: 'memcpy' was not declared in this scope user.cpp: In function 'void expsq(int*, int)': user.cpp:50: error: 'memcpy' was not declared in this scope user.cpp: At global scope: user.cpp:61: error: expected declaration before '}' token