foo.cc: In function 'int main()':
foo.cc:10:9: error: expected ';' before '}' token
   10 |   r=r*10
      |         ^
      |         ;
   11 | 
   12 |  }
      |  ~       
foo.cc:5:8: warning: unused variable 'n' [-Wunused-variable]
    5 |  int m,n,c=0,i;
      |        ^

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