View Compilation Error

0_0_23560699_1862.cpp: In function 'bool merge(int, int)':
0_0_23560699_1862.cpp:27:1: error: expected primary-expression before '%' token
 %0
 ^
0_0_23560699_1862.cpp:27:2: error: expected '}' at end of input
 %0
  ^