Compilare: user.cpp: In function ‘int main()’: user.cpp:30:46: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 3 has type ‘unsigned int’ [-Wformat=] f=fopen("fractii.out","r"); fscanf(f,"%u",nr); ^ user.cpp:22:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%u",&n); ^ user.cpp:30:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] f=fopen("fractii.out","r"); fscanf(f,"%u",nr); ^