Compilare: user.cpp: In function ‘int findPow(int, int*)’: user.cpp:75:9: warning: unused variable ‘prod’ [-Wunused-variable] int prod = 1; // va retine produsul lungimilor lanturilor ^ user.cpp: In function ‘void read(int&, int*)’: user.cpp:11:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.cpp:13:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &perm[i]); // citim pe rand valorile de pe pozitia i ^ user.cpp: In function ‘int main()’: user.cpp:92:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perm2.in", "r", stdin); ^ user.cpp:93:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perm2.out", "w", stdout); ^