Compilare: main.cpp:96:43: warning: integer constant is so large that it is unsigned while (nr2 <= (unsigned long long)18446744073709551615 / nr1){ ^~~~~~~~~~~~~~~~~~~~ main.cpp:103:52: warning: integer constant is so large that it is unsigned if (aux[ii] <= (unsigned long long)18446744073709551615 - aux[jj]) ^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:87:9: warning: unused variable 'cnt' [-Wunused-variable] int cnt = 0 , elem , ii , jj; ^~~ main.cpp:40:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&n); ^ main.cpp:42:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%llu",&v[i]); ^