View Compilation Error

0_0_37697682_31936.cpp:80:5: error: stray '\243' in program
     int rt=node<<1；
     ^
0_0_37697682_31936.cpp:80:5: error: stray '\273' in program
0_0_37697682_31936.cpp: In function 'void update(int, int, int, int, int)':
0_0_37697682_31936.cpp:81:5: error: expected ',' or ';' before 'if'
     if(x<=mid){
     ^
0_0_37697682_31936.cpp:83:6: error: 'else' without a previous 'if'
     }else{
      ^