Borderou de evaluare (job #181885)

Compilare: user.cpp: In function ‘void copy(char*, char*)’: user.cpp:8:22: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp:12:19: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp: In function ‘int cmp(char*, char*)’: user.cpp:17:38: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp: In function ‘int main()’: user.cpp:77:15: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:67:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:69:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:78:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘int cmp(char*, char*)’: user.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type]