View Compilation Error

0_0_31819523_20805.cpp:62:41: error: 'in' has not been declared
         int QueryR(int L, int v, int l, in
                                         ^
0_0_31819523_20805.cpp:62:41: error: expected ',' or '...' at end of input
0_0_31819523_20805.cpp:62:41: error: expected ')' at end of input
0_0_31819523_20805.cpp:62:41: error: expected ';' at end of member declaration
0_0_31819523_20805.cpp:62:13: error: 'int SegmentTree::QueryR(int, int, int, int)' cannot be overloaded
         int QueryR(int L, int v, int l, in
             ^
0_0_31819523_20805.cpp:49:13: error: with 'int SegmentTree::QueryR(int, int, int, int)'
         int QueryR(int v, int l, int r, int rt) {
             ^
0_0_31819523_20805.cpp:62:41: error: expected '}' at end of input
         int QueryR(int L, int v, int l, in
                                         ^
0_0_31819523_20805.cpp:61:9: error: expected unqualified-id at end of input
         }
         ^