foo.cc: In function 'int main()':
foo.cc:5:13: error: 'sprt' was not declared in this scope
     cout << sprt(8*10-16) << endl;
             ^~~~
foo.cc:5:13: note: suggested alternative: 'sqrt'
     cout << sprt(8*10-16) << endl;
             ^~~~
             sqrt

自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。