Main.cc: In function 'int main()':
Main.cc:6:5: error: 'cin' was not declared in this scope
cin>>n;
^
Main.cc:7:28: error: expected ')' before 'n'
if((n%4==0 && n%100!=0)n%400==0){
^
Main.cc:8:5: error: 'cout' was not declared in this scope
cout<<"Yes"
^
Main.cc:11:5: error: 'cout' was not declared in this scope
cout<<"No"
^
Main.cc:5:9: warning: unused variable 't' [-Wunused-variable]
int t,n,i;
^
Main.cc:5:13: warning: unused variable 'i' [-Wunused-variable]
int t,n,i;
^