View Compilation Error

0_0_23755506_9925.cpp: In function 'int merge(int, int)':
0_0_23755506_9925.cpp:56:7: error: expected '(' before '%' token
     if%2
       ^
0_0_23755506_9925.cpp:56:8: error: expected '}' at end of input
     if%2
        ^