Wrong Answer
/in/foo.cc: In function 'int find(int)':
/in/foo.cc:13:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
mid=l+r>>1;
~^~
/in/foo.cc: In function 'int find(int)':
/in/foo.cc:13:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
mid=l+r>>1;
~^~
