Eroare de compilare: user.cpp: In member function ‘void BigInt::shl(unsigned int)’: user.cpp:91:27: error: ‘memset’ was not declared in this scope memset(&a[1], 0, 4 * k); ^ user.cpp: In function ‘BigInt operator+(const BigInt&, const BigInt&)’: user.cpp:123:55: error: ‘memcpy’ was not declared in this scope memcpy(&rez.a[0], a, sizeof(unsigned)* (n + 1)); ^ user.cpp:149:40: error: ‘memcpy’ was not declared in this scope memcpy(&rez.a[0], a, 4 * (a[0] + 1)); ^ user.cpp: In function ‘BigInt operator*(const BigInt&, const BigInt&)’: user.cpp:222:46: error: ‘memcpy’ was not declared in this scope memcpy(&A.a[1], a + k, 4 * A.a[0]); ^ user.cpp:242:38: error: ‘memcpy’ was not declared in this scope memcpy(&x2.a[1], a + 1, 4 * p); ^ user.cpp: In function ‘int main()’: user.cpp:539:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tamplar.in", "r", stdin); ^ user.cpp:540:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tamplar.out", "w", stdout); ^ user.cpp:543:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^