View Compilation Error

0_0_19643566_24023.c: In function 'Query':
0_0_19643566_24023.c:56:5: error: expected expression before '/' token
     //printf("%d %d %d %d %d\n", l, r, LeftSum_L, LeftSum_R, mid);
     ^
0_0_19643566_24023.c:57:5: error: expected expression before '/' token
     //system("pause");
     ^
0_0_19643566_24023.c:58:5: error: expected expression before '/' token
     //Notice: it's easy to confuse about l and Tree[node].Left!!
     ^
0_0_19643566_24023.c:58:5: error: missing terminating ' character
0_0_19643566_24023.c:61:5: error: 'else' without a previous 'if'
     else
     ^