foo.cc: In function 'int main()':
foo.cc:6:2: error: 'cin' was not declared in this scope
6 | cin>>x;
| ^~~
foo.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
1 | #include<iomanip>
+++ |+#include <iostream>
2 | using namespace std;
foo.cc:17:2: error: 'cout' was not declared in this scope
17 | cout<<s<<endl;
| ^~~~
foo.cc:17:2: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
foo.cc:17:11: error: 'endl' was not declared in this scope
17 | cout<<s<<endl;
| ^~~~
foo.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; did you forget to '#include <ostream>'?
1 | #include<iomanip>
+++ |+#include <ostream>
2 | using namespace std;
foo.cc:5:8: warning: unused variable 'a' [-Wunused-variable]
5 | int x,a=0,s=0,c,i=1;
| ^
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