0_0_37770044_31219.cpp: In function 'void IO::input(T& ...)':
0_0_37770044_31219.cpp:4:65: error: expected primary-expression before '...' token
template <typename ...T> void input(T&... t) { ((cin >> t), ...); }
^
0_0_37770044_31219.cpp:4:65: error: expected ')' before '...' token
0_0_37770044_31219.cpp:4:69: error: parameter packs not expanded with '...':
template <typename ...T> void input(T&... t) { ((cin >> t), ...); }
^
0_0_37770044_31219.cpp:4:69: note: 't'
0_0_37770044_31219.cpp: In function 'void IO::print(const U&, const T& ...)':
0_0_37770044_31219.cpp:8:112: error: expected primary-expression before '...' token
template <typename U,typename ...T> void print(const U& u,const T&... t) { cout << u , ((cout << SEP << t),... ) << END; }
^
0_0_37770044_31219.cpp:8:112: error: expected ')' before '...' token
0_0_37770044_31219.cpp:8:124: error: parameter packs not expanded with '...':
template <typename U,typename ...T> void print(const U& u,const T&... t) { cout << u , ((cout << SEP << t),... ) << END; }
^
0_0_37770044_31219.cpp:8:124: note: 't'
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