0_0_21506556_5950.cpp: In function 'int main()':
0_0_21506556_5950.cpp:29:4: error: 'ios' has not been declared
ios::sync_with_stdio(false);
^
0_0_21506556_5950.cpp:30:4: error: 'cin' was not declared in this scope
cin.tie(0);
^
0_0_21506556_5950.cpp:36:19: error: 'sort' was not declared in this scope
sort(b,b+n,cmp);
^
0_0_21506556_5950.cpp:38:5: error: 'cout' was not declared in this scope
cout<<ans<<endl;
^
0_0_21506556_5950.cpp:38:16: error: 'endl' was not declared in this scope
cout<<ans<<endl;
^
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