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#include‹iostream›
Using namespace std;
int main ( )
{
float r,area;
cout‹‹"Enter radius:";
cin››r;
area=2.0*3.14*r;
cout‹‹"area="‹‹area;
return 0;
 
}
 

prog.cpp:2:9: error: #include expects "FILENAME" or <FILENAME>
 #include‹iostream›
         ^
prog.cpp:7:5: error: stray ‘\342’ in program
 cout‹‹"Enter radius:";
     ^
prog.cpp:7:6: error: stray ‘\200’ in program
 cout‹‹"Enter radius:";
      ^
prog.cpp:7:7: error: stray ‘\271’ in program
 cout‹‹"Enter radius:";
       ^
prog.cpp:7:8: error: stray ‘\342’ in program
 cout‹‹"Enter radius:";
        ^
prog.cpp:7:9: error: stray ‘\200’ in program
 cout‹‹"Enter radius:";
         ^
prog.cpp:7:10: error: stray ‘\271’ in program
 cout‹‹"Enter radius:";
          ^
prog.cpp:8:4: error: stray ‘\342’ in program
 cin››r;
    ^
prog.cpp:8:5: error: stray ‘\200’ in program
 cin››r;
     ^
prog.cpp:8:6: error: stray ‘\272’ in program
 cin››r;
      ^
prog.cpp:8:7: error: stray ‘\342’ in program
 cin››r;
       ^
prog.cpp:8:8: error: stray ‘\200’ in program
 cin››r;
        ^
prog.cpp:8:9: error: stray ‘\272’ in program
 cin››r;
         ^
prog.cpp:10:5: error: stray ‘\342’ in program
 cout‹‹"area="‹‹area;
     ^
prog.cpp:10:6: error: stray ‘\200’ in program
 cout‹‹"area="‹‹area;
      ^
prog.cpp:10:7: error: stray ‘\271’ in program
 cout‹‹"area="‹‹area;
       ^
prog.cpp:10:8: error: stray ‘\342’ in program
 cout‹‹"area="‹‹area;
        ^
prog.cpp:10:9: error: stray ‘\200’ in program
 cout‹‹"area="‹‹area;
         ^
prog.cpp:10:10: error: stray ‘\271’ in program
 cout‹‹"area="‹‹area;
          ^
prog.cpp:10:18: error: stray ‘\342’ in program
 cout‹‹"area="‹‹area;
                  ^
prog.cpp:10:19: error: stray ‘\200’ in program
 cout‹‹"area="‹‹area;
                   ^
prog.cpp:10:20: error: stray ‘\271’ in program
 cout‹‹"area="‹‹area;
                    ^
prog.cpp:10:21: error: stray ‘\342’ in program
 cout‹‹"area="‹‹area;
                     ^
prog.cpp:10:22: error: stray ‘\200’ in program
 cout‹‹"area="‹‹area;
                      ^
prog.cpp:10:23: error: stray ‘\271’ in program
 cout‹‹"area="‹‹area;
                       ^
prog.cpp:3:1: error: ‘Using’ does not name a type
 Using namespace std;
 ^~~~~
prog.cpp: In function ‘int main()’:
prog.cpp:7:1: error: ‘cout’ was not declared in this scope
 cout‹‹"Enter radius:";
 ^~~~
prog.cpp:8:1: error: ‘cin’ was not declared in this scope
 cin››r;
 ^~~
prog.cpp:10:11: error: expected ‘;’ before string constant
 cout‹‹"area="‹‹area;
           ^~~~~~~

Standard output is empty