/in/foo.cc: In function 'int find(int, int)':
/in/foo.cc:34:9: warning: unused variable 'i' [-Wunused-variable]
     int i,t;
         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:61:22: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
             while (t = find(0,inf))
                    ~~^~~~~~~~~~~~~