View Compilation Error

0_0_33402561_4346.cpp: In function 'int main()':
0_0_33402561_4346.cpp:55:3: error: expected ';' before 'while'
   while(l<=r)//二分
   ^
0_0_33402561_4346.cpp:69:1: error: expected '}' at end of input
 }
 ^
0_0_33402561_4346.cpp:69:1: error: expected '}' at end of input