104502_0_4681.cpp: In function `int main()':
104502_0_4681.cpp:14: error: argument of type `size_t (std::basic_string<char, std::char_traits<char>, std::allocator<char> >::)() const' does not match `int'
104502_0_4681.cpp:14: error: argument of type `size_t (std::basic_string<char, std::char_traits<char>, std::allocator<char> >::)() const' does not match `int'
104502_0_4681.cpp:14: error: argument of type `size_t (std::basic_string<char, std::char_traits<char>, std::allocator<char> >::)() const' does not match `int'
104502_0_4681.cpp:19: error: `len' undeclared (first use this function)
104502_0_4681.cpp:19: error: (Each undeclared identifier is reported only once for each function it appears in.)
104502_0_4681.cpp:25: error: `r' undeclared (first use this function)
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