View Compilation Error

0_0_33897771_18862.cpp:48:3: error: stray '\243' in program
   o->ch[0] = merge(o1->ch[0], o2->ch[0], s)；
   ^
0_0_33897771_18862.cpp:48:3: error: stray '\273' in program
0_0_33897771_18862.cpp: In function 'Segment_Tree* merge(Segment_Tree*, Segment_Tree*, int)':
0_0_33897771_18862.cpp:49:3: error: expected ';' before 'o'
   o->ch[1] = merge(o1->ch[1], o2->ch[1], size - s);
   ^