Compilare: user.cpp: In function ‘int main()’: user.cpp:23:27: warning: unused variable ‘n’ [-Wunused-variable] int putere=1,theone=0,n,i,j,check=0,cnt=0,n1,n2,check2=0,theone2=0,putere2=1; ^ user.cpp:23:31: warning: unused variable ‘j’ [-Wunused-variable] int putere=1,theone=0,n,i,j,check=0,cnt=0,n1,n2,check2=0,theone2=0,putere2=1; ^ user.cpp:21:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in","r",stdin); ^ user.cpp:22:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out","w",stdout); ^ user.cpp:24:14: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(a+1); ^ user.cpp:25:14: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(b+1); ^ /tmp/cc5T90Er.o: In function `main': user.cpp:(.text.startup+0x56): warning: the `gets' function is dangerous and should not be used.