Wrong Answer
/in/foo.c: In function 'qsort':
/in/foo.c:6:9: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
if (l=r) return;
^~
/in/foo.c: In function 'qsort':
/in/foo.c:6:9: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
if (l=r) return;
^~
