Compilare: user.cpp: In function ‘punct get()’: user.cpp:33:17: warning: NULL used in arithmetic [-Wpointer-arith] while(s[j]!=NULL){ ^ user.cpp:23:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ user.cpp: In function ‘int main()’: user.cpp:104:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("harta2.in","r",stdin); ^ user.cpp:105:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("harta2.out","w",stdout); ^ user.cpp:108:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d\n",&n); ^ /tmp/ccbw1cvX.o: In function `get()': user.cpp:(.text+0x19): warning: the `gets' function is dangerous and should not be used.