0_0_39481937_17157.cpp: In function 'int main()': 0_0_39481937_17157.cpp:62:15: error: 'syncwithstdio' is not a member of 'std::ios' {aka 'std::basic_ios<char>'} 62 | std::ios::syncwithstdio(0), std::cin.tie(0); | ^~~~~~~~~~~~~