Compilare: user.cpp: In function ‘int main()’: user.cpp:13:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.cpp:17:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a); ^ user.cpp:32:5: warning: ‘sumgr2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(sumgr2<sumgr1){ ^~ user.cpp:32:5: warning: ‘sumgr1’ may be used uninitialized in this function [-Wmaybe-uninitialized]