/in/foo.cc: In function 'int main()':
/in/foo.cc:35:8: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    if(t>=d>=e)
       ~^~~
/in/foo.cc:40:8: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    if(t>=e>=d)
       ~^~~
/in/foo.cc:45:8: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    if(e>=t>=d)
       ~^~~
/in/foo.cc:50:8: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    if(e>=d>=t)
       ~^~~
/in/foo.cc:55:8: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    if(d>=e>=t)
       ~^~~
/in/foo.cc:60:8: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    if(d>=t>=e)
       ~^~~
/in/foo.cc:6:14: warning: unused variable 'f' [-Wunused-variable]
  int j,i,h,g,f,n,d,t,e,n1,n2,c,k,s=0;
              ^
/in/foo.cc:66:13: warning: 'h' may be used uninitialized in this function [-Wmaybe-uninitialized]
    cout<<h<<"-"<<i<<"="<<j<<endl;
             ^~~
/in/foo.cc:66:21: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
    cout<<h<<"-"<<i<<"="<<j<<endl;
                     ^~~
/in/foo.cc:12:3: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(k==c)
   ^~