foo.cc: In function 'int main()':
foo.cc:42:5: error: expected ';' before 'sum'
     sum=getDays(year,month);
     ^~~
foo.cc:40:38: warning: unused variable 'cases' [-Wunused-variable]
  int i,j,year,month,day,sum,daycount,cases=1;
                                      ^~~~~

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