Main.cc: In function 'int main()':
Main.cc:5:10: error: 'i' was not declared in this scope
for (i=0;i<12;i++){
^
Main.cc:9:12: error: expected primary-expression before '%' token
printf(%2l.f,sumi/12);
^
Main.cc:9:13: error: unable to find numeric literal operator 'operator""l.f'
printf(%2l.f,sumi/12);
^
Main.cc:9:13: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes