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Calculate Area of Circle

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[ + ] Compiler args [ - ] Show input
Compilation time: 0.12 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 0,35 sec 
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Warning(s):
source_file.c: In function ‘main’:
source_file.c:10:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lf",&R);
     ^

 The Area of the Circle is 50.240000

    
                		
                
                    

                          
                                
                                
                        
                         



                        
                        
                        

                        

                        
                        

                          
                                
                                
                                  

                                    
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