View Compilation Error

0_0_32863675_1621.cpp: In function 'void solve()':
0_0_32863675_1621.cpp:301:22: error: cannot convert 'Node*(Node*, Node*)' to 'Node*' in assignment
                 root = Merge
                      ^
0_0_32863675_1621.cpp:301:24: error: expected '}' at end of input
                 root = Merge
                        ^
0_0_32863675_1621.cpp:301:24: error: expected '}' at end of input
0_0_32863675_1621.cpp:301:24: error: expected '}' at end of input
0_0_32863675_1621.cpp:301:24: error: expected '}' at end of input