/in/foo.cc: In function 'void addy(int, int, int&, int)':
/in/foo.cc:29:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=l+r>>1;
             ~^~
/in/foo.cc: In function 'void addx(int, int, int, int, int)':
/in/foo.cc:38:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=l+r>>1;
             ~^~
/in/foo.cc: In function 'int quey(int, int, int, int, int)':
/in/foo.cc:47:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=l+r>>1,res=0;
             ~^~
/in/foo.cc: In function 'int quex(int, int, int, int, int, int, int)':
/in/foo.cc:56:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=l+r>>1,res=0;
             ~^~
/in/foo.cc: In function 'int main()':
/in/foo.cc:64:11: warning: unused variable 'j' [-Wunused-variable]
     int i,j,k,x;
           ^