0_0_16469261_21962.cpp:1:1: error: stray '\357' in program
#include<iostream>
^
0_0_16469261_21962.cpp:1:1: error: stray '\273' in program
0_0_16469261_21962.cpp:1:1: error: stray '\277' in program
0_0_16469261_21962.cpp:1:4: error: stray '#' in program
#include<iostream>
^
0_0_16469261_21962.cpp:1:5: error: 'include' does not name a type
#include<iostream>
^
0_0_16469261_21962.cpp: In function 'int main()':
0_0_16469261_21962.cpp:8:8: error: 'cin' was not declared in this scope
while(cin>>n)
^
0_0_16469261_21962.cpp:13:3: error: 'cout' was not declared in this scope
cout<<a*(a-1)/2+b*(b-1)/2<<endl;
^
0_0_16469261_21962.cpp:13:30: error: 'endl' was not declared in this scope
cout<<a*(a-1)/2+b*(b-1)/2<<endl;
^
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