foo.cc: In function 'int main()':
foo.cc:19:42: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
         scanf("%lld%d%lld",&x[i],&p,&c[i]);
                                  ~~      ^
foo.cc:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%d%lld",&x[i],&p,&c[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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