0_0_28254968_11024.cpp:1:1: error: 'include' does not name a type
include<iostream>
^
0_0_28254968_11024.cpp: In function 'int main()':
0_0_28254968_11024.cpp:10:3: error: 'cin' was not declared in this scope
cin>>n;
^
0_0_28254968_11024.cpp:18:3: error: 'cout' was not declared in this scope
cout<<sum;
^
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