/in/foo.cc: In function 'int main()':
/in/foo.cc:10:10: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
      if(6>(m%10)>=2 && (t-m/10-3)>=0)
          ^
/in/foo.cc:14:12: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   else if(9>=(m%10)>7 && (t-m/10-2)>=0)
            ^
/in/foo.cc:16:12: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   else if(9>=(m%10)>7 && (t-m/10-3)>=0)
            ^
/in/foo.cc:18:12: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   else if(9>=(m%10)>7 && (t-m/10-4)>=0)
            ^
/in/foo.cc:35:20: warning: 't1' may be used uninitialized in this function [-Wmaybe-uninitialized]
     printf("%d",t1);
                    ^
/in/foo.cc:25:23: warning: 's1' may be used uninitialized in this function [-Wmaybe-uninitialized]
        printf("%d",s1);
                       ^