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  1. #include <stdio.h>
  2. #include <math.h>
  3. /*lato del quadrato data l'area,
  4. controllare che l'area sia positiva*/
  5. int main(void) {float area, lato;
  6. printf("Area= ");
  7. scanf("%f",&area);
  8. if(area<=0) printf("Impossibile");
  9. if(area>0) lato=sqrt(area);
  10. printf("Lato=%f",lato);
  11. return 0;
  12. }
  13.  
Success #stdin #stdout 0s 2172KB
stdin
10
stdout
Area= Lato=3.162278