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View Compilation Error

0_0_13916826_20489.cpp: In function 'void pushUp(int)':
0_0_13916826_20489.cpp:38:13: error: expected unqualified-id before 'xor' token
         int xor=merge(st[lch][i].first,st[rch][j].first);
             ^
0_0_13916826_20489.cpp:41:25: error: expected primary-expression before 'xor' token
         if(record.count(xor)) {
                         ^
0_0_13916826_20489.cpp:41:28: error: expected primary-expression before ')' token
         if(record.count(xor)) {
                            ^
0_0_13916826_20489.cpp:42:28: error: expected primary-expression before 'xor' token
             int pos=record[xor];
                            ^
0_0_13916826_20489.cpp:42:31: error: expected primary-expression before ']' token
             int pos=record[xor];
                               ^
0_0_13916826_20489.cpp:46:20: error: expected primary-expression before 'xor' token
             record[xor]=st[v].size();
                    ^
0_0_13916826_20489.cpp:46:23: error: expected primary-expression before ']' token
             record[xor]=st[v].size();
                       ^
0_0_13916826_20489.cpp:47:32: error: expected primary-expression before '(' token
             st[v].push_back(PII(xor,num));
                                ^
0_0_13916826_20489.cpp:47:33: error: expected primary-expression before 'xor' token
             st[v].push_back(PII(xor,num));
                                 ^
0_0_13916826_20489.cpp:47:36: error: expected primary-expression before ',' token
             st[v].push_back(PII(xor,num));
                                    ^


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