The sports meet
跑得慢，会遭遇残酷，跑得快，才能遇到激荡
#includevoid print(int i) {std::cout << i << " ";}void func() {}templatevoid func(T1 arg1, Tn... args) {print(arg1);func(args...);}int main() {func(2, 3, 4);std::cout << "Hello World \n";}
#includevoid print(int i) {std::cout << i << " ";}templatevoid func(const T&... args) {(print(args), ...);std::cout << "\n";}int main() {func(1, 2, 3);std::cout << "Hello World \n";}
(print(1), (print(2), print(3)));#includetemplatevoid func(const T&... args) {((std::cout << args << " "), ...);std::cout << "\n";}int main() {func(1, 2, 3);std::cout << "Hello World \n";}
((std::cout << 1<< " "), ((std::cout << 2 << " "), (std::cout << 3 << " ")));#includetemplateint sum(const T& v, const Tn&... values) {return (v + ... + values);}templateint sum2(const Tn&... values) {return (... + values);}int main() {std::cout << sum(1, 2, 3, 4) << "\n";std::cout << sum2(1, 2, 3, 4) << "\n";std::cout << "Hello World \n";}
return (((1 + 2) + 3) + 4);#includetemplateint sum(const T& v, const Tn&... values) {return (v + ... + values);}int main() {sum();std::cout << "Hello World \n";}
#includetemplatedouble allTrue(const Values&... values) {return (... && values);}templatedouble anyTrue(const Values&... values) {return (... || values);}int main() {std::cout << allTrue(1, 1, 0) << allTrue(1, 1) << allTrue() << "\n"; // 011std::cout << anyTrue(1, 1, 0) << anyTrue(0, 0) << anyTrue() << "\n"; // 100}
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