Compilare: user.cpp: In function ‘int b()’: user.cpp:54:13: warning: variable ‘smp’ set but not used [-Wunused-but-set-variable] int smp[ (const int)(t+3) ]; ^ user.cpp: In function ‘int main()’: user.cpp:90:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie1.in" , "r", stdin); ^ user.cpp:91:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie1.out", "w", stdout); ^ user.cpp:92:14: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s+1); ^ /tmp/ccpQusCJ.o: In function `main': user.cpp:(.text.startup+0x53): warning: the `gets' function is dangerous and should not be used.