foo.cc: In function 'int main()':
foo.cc:6:18: warning: unused variable 't' [-Wunused-variable]
  int n,i,SBP,DBP,t=0,d=0,c=0;
                  ^
foo.cc:7:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
foo.cc:10:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&SBP,&DBP);
   ~~~~~^~~~~~~~~~~~~~~~~~

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