foo.cc: In function 'int main()':
foo.cc:36:35: warning: format '%f' expects argument of type 'double', but argument 2 has type 'int' [-Wformat=]
   printf("%0.1f",sum*6/5+shengqian);
                  ~~~~~~~~~~~~~~~~~^
foo.cc:11:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&bugst);
   ~~~~~^~~~~~~~~~~~~

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