15596번 문제

def solve(list):
    result = 0
    for num in list:
        result = result+num
    return result

4673번 문제

def d(n):
    t = str(n)
    S = 0
    for i in range(0, len(t)):
        S = int(t[i]) + S
    return n + S
arr = []
for x in range(1, 10001):
    t = d(x)
    arr.append(t)

for y in range(1, 10001):
    if y in arr:
        pass
    else:
        print(y)

1065번 문제

N = int(input())
S = 0
T = 0
for i in range(1, N+1) :
    if i <= 99 :
        S = S + 1
    else :     
        N = list(map(int, str(i)))
        if N[0] - N[1] == N[1] - N[2] :
            S = S + 1
print(S)

 

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