View Compilation Error

0_0_35687987_18348.cpp: In function 'void solve()':
0_0_35687987_18348.cpp:76:9: error: 'l' was not declared in this scope
         l=min(ll,rr);
         ^
0_0_35687987_18348.cpp:77:9: error: 'r' was not declared in this scope
         r=max(ll,rr);
         ^