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3825 - Radius
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== Exemplul 4 == ; Intrare : n ; Ieșire : Datele introduse nu corespund restricțiilor impuse. <syntaxhighlight lang="python" line> # 3825 - Radius import math def verificare_restrictii(n1, a1): # functia de verificare a datelor de intrare if 3 <= n1 <= 360 and 1 <= a1 <= 1000: # updated restrictions return True else: return False def distanta_centru_varf(n1, a1): # Unghiul dintre doua laturi adiacente ale poligonului unghi = 2 * math.pi / n1 # Distanta de la centrul poligonului la oricare varf r1 = a1 / (2 * math.sin(unghi / 2)) return r1 if __name__ == "__main__": try: # Citim datele de intrare n, a = map(int, input().split()) if verificare_restrictii(n, a): # verificam datele de intrare print("Datele de intrare corespund restrictiilor impuse.") # Calculam distanta de la centrul poligonului la varf r = distanta_centru_varf(n, a) # Afisam rezultatul cu 2 zecimale exacte, fara rotunjire print(f"{r: .2f}") else: print("Datele de intrare nu corespund restrictiilor impuse.") # ne asteptam la 2 tipuri de erori din cauza datelor de intrare, le tratam corespunzator except ValueError: print("Datele de intrare nu corespund restrictiilor impuse.") except IndexError: print("Datele de intrare nu corespund restrictiilor impuse.") </syntaxhighlight>
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