10 lines
189 B
C++
10 lines
189 B
C++
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#include <iostream>
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#include <cmath>
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#include <ext/functional>
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int main() {
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std::cout << __gnu_cxx::compose1(std::ptr_fun(::sin), std::ptr_fun(::asin))(0.5) << std::endl;
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return 0;
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}
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