运行 ID: 34528

Main.cc: In function ‘int main()’:
Main.cc:27:22: error: ‘tot’ was not declared in this scope
     printf("%.2lf\n",tot / n);
                      ^~~
Main.cc:14:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
Main.cc:16:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&vec[i].t);
         ~~~~~^~~~~~~~~~~~~~~~