Eroare de compilare: user.cpp:9:1: error: expected initializer before ‘void’ void read() ^ user.cpp: In function ‘void perm()’: user.cpp:23:11: warning: pointer to a function used in arithmetic [-Wpointer-arith] perm[0] = 0; ^ user.cpp:23:13: error: assignment of function ‘void perm()’ perm[0] = 0; ^ user.cpp:23:13: error: cannot convert ‘int’ to ‘void()’ in assignment user.cpp:25:15: warning: pointer to a function used in arithmetic [-Wpointer-arith] perm[i] = perm[i] * perm[i-1]; ^ user.cpp:25:25: warning: pointer to a function used in arithmetic [-Wpointer-arith] perm[i] = perm[i] * perm[i-1]; ^ user.cpp:25:37: warning: pointer to a function used in arithmetic [-Wpointer-arith] perm[i] = perm[i] * perm[i-1]; ^ user.cpp:25:37: warning: pointer to a function used in arithmetic [-Wpointer-arith] user.cpp:25:37: error: invalid operands of types ‘void()’ and ‘void()’ to binary ‘operator*’ user.cpp: In function ‘int main()’: user.cpp:32:10: error: ‘read’ was not declared in this scope read(); ^ user.cpp:30:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perm3.in", "r", stdin); ^ user.cpp:31:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perm3.out", "w", stdout); ^