运行 ID: 33828

Main.cc: In function ‘int main()’:
Main.cc:65:36: error: invalid initialization of reference of type ‘const Interval& {aka const std::pair&}’ from expression of type ‘std::vector >’
     for (int i = 0; i < (int)size(X); ++i) {
                                    ^
Main.cc:36:12: note: in passing argument 1 of ‘i64 size(const Interval&)’
 inline i64 size(const Interval& P)
            ^~~~