Compilare: user.cpp:6: warning: ‘typedef’ was ignored in this declaration user.cpp: In function ‘void merge_sort(interval*, unsigned int)’: user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp:14: warning: unused variable ‘i’ user.cpp: In function ‘int main()’: user.cpp:79: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:81: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void merge_sort(interval*, unsigned int)’: user.cpp:71: warning: attempt to free a non-heap object ‘tmp’