View Compilation Error

0_0_36487687_18373.cpp: In function 'int main()':
0_0_36487687_18373.cpp:62:9: error: 'r' was not declared in this scope
   while(r-l>1){
         ^
0_0_36487687_18373.cpp:70:6: error: redeclaration of 'll l'
   ll l=0,r=1000000;
      ^
0_0_36487687_18373.cpp:61:6: note: 'll l' previously declared here
   ll l=1;
      ^