View Compilation Error

0_0_17700289_14547.cpp: In function 'void build(int, int, int)':
0_0_17700289_14547.cpp:27:53: error: expected primary-expression before '%' token
   if(num[d1][x]<=num[d1][y]) num[d][t]=num[d1][x],x+%2
                                                     ^
0_0_17700289_14547.cpp:27:54: error: expected '}' at end of input
   if(num[d1][x]<=num[d1][y]) num[d][t]=num[d1][x],x+%2
                                                      ^
0_0_17700289_14547.cpp:27:54: error: expected '}' at end of input