/in/foo.cc: In function 'int main()':
/in/foo.cc:19:12: error: expected '}' at end of input
     w[nf]++;
            ^
/in/foo.cc:19:12: error: expected '}' at end of input
/in/foo.cc:19:12: error: expected '}' at end of input
/in/foo.cc:7:18: warning: unused variable 'i' [-Wunused-variable]
  int sc,lc,nc,nn,i,j,nf,lnc;
                  ^
/in/foo.cc:7:20: warning: unused variable 'j' [-Wunused-variable]
  int sc,lc,nc,nn,i,j,nf,lnc;
                    ^
/in/foo.cc:8:7: warning: unused variable 'flag' [-Wunused-variable]
  bool flag=1;
       ^~~~
/in/foo.cc:19:12: error: expected '}' at end of input
     w[nf]++;
            ^