View Compilation Error

0_0_14218800_27976.cpp: In function 'int clear()':
0_0_14218800_27976.cpp:2:13: error: 'i' was not declared in this scope
         rep(i, 2)
             ^
0_0_14218800_27976.cpp:2:17: error: 'rep' was not declared in this scope
         rep(i, 2)
                 ^
0_0_14218800_27976.cpp: At global scope:
0_0_14218800_27976.cpp:7:5: error: 'Node' does not name a type
     Node operator+(const Node& A) {
     ^
0_0_14218800_27976.cpp:19:1: error: expected declaration before '}' token
 }cnt[N << 2];
 ^