This article offers a sample of basic Markdown syntax that can be used in Hugo content files, also it shows whether basic HTML elements are decorated with CSS in a Hugo theme.

03 Template specification with std::formatter

Requirements：

  1. Please don’t change main function.
  2. Please implement your function/code to get Expected results.
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17

int main(){
    std::cout << "乐 :{} *\n"_f(5);
    std::cout << "乐 :{0} {0} *\n"_f(5);
    std::cout << "乐 :{:b} *\n"_f(0b01010101);
    std::cout << "{:*<10}"_f("卢瑟");
    std::cout << '\n';
    int n{};
    std::cin >> n;
    std::cout << "π：{:.{}f}\n"_f(std::numbers::pi_v<double>, n);
}

struct Frac {
   int a, b;
};

Frac f{ 1,10 };
print("{}", f);// result: 1/10

Expected results

1/10

Suggested environments

Compiler explorer, please add –std=c++20 to the compilation options.

My implementation

Reference code, please use browser to translate page from Chinese to English if necessary.