Borderou de evaluare (job #162498)

Compilare: user.cpp: In function ‘int common_prefix(char*, char*)’: user.cpp:64:46: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp: In function ‘int main()’: user.cpp:89:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:90:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] /tmp/ccx6O8JC.o: In function `main': user.cpp:(.text.startup+0xa9): warning: the `gets' function is dangerous and should not be used.