View Compilation Error

0_0_33616489_15174.cpp: In function 'int main()':
0_0_33616489_15174.cpp:152:17: error: 'j' was not declared in this scope
             rep(j, 0, du[u]) tree[u][j] = cnt[u][j] = 0;
                 ^
0_0_33616489_15174.cpp:152:28: error: 'rep' was not declared in this scope
             rep(j, 0, du[u]) tree[u][j] = cnt[u][j] = 0;
                            ^