Main.cc: In function 'int main()':
Main.cc:7:16: error: unable to find numeric literal operator 'operator""n'
while(i<=n-1n)
^
Main.cc:7:16: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
Main.cc:10:11: error: 'No' was not declared in this scope
cout<