def Euler_104(): test = -1 mini = 10**3 for i in fib(): test+=1 stri = str(i) if test<300000:continue elif test==300000:print('start') if ispan(int(stri[-1:-10:-1])) and ispan(int(stri[:9])):return test if test>mini==0:print(test//10000);mini+=10**3
def Euler_104(): test = -1 mini = 10**3 for i in fib(): test += 1 stri = str(i) if test < 300000: continue elif test == 300000: print('start') if ispan(int(stri[-1:-10:-1])) and ispan(int(stri[:9])): return test if test > mini == 0: print(test // 10000) mini += 10**3
def Euler_38(): n = 9 i = 1 high = 0 while len(str(i)) <= 9 // 2: x = 2 t = i string = str(i) while len(string) <= 9: t *= x string += str(t) if len(string) == 9 and ispan(int(string)): if int(string) > high: high = int(string) i += 1 return high
def Euler_38(): n = 9 i = 1 high = 0 while len(str(i))<=9//2: x = 2 t = i string = str(i) while len(string)<=9: t*=x string += str(t) if len(string)==9 and ispan(int(string)): if int(string)>high: high = int(string) i+=1 return high
def Euler_32(): a = set() l = 0 t = 0 for x in range(1,100): if x%10==0:print(x) for y in range(x,2000): test = str(x)+str(y)+str(x*y) if len(test)==9: if ispan(test):a.add(x*y);t +=1 length = len(a) if length>l:print(a);l = length if t==9:break print(a) ret = 0 while a: ret+=a.pop() return ret
def Euler_32(): a = set() l = 0 t = 0 for x in range(1, 100): if x % 10 == 0: print(x) for y in range(x, 2000): test = str(x) + str(y) + str(x * y) if len(test) == 9: if ispan(test): a.add(x * y) t += 1 length = len(a) if length > l: print(a) l = length if t == 9: break print(a) ret = 0 while a: ret += a.pop() return ret