Submission #73051777

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Source Code Expand

import sys
from collections import defaultdict
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mii = lambda: map(int, input().split())
lii = lambda: list(mii())
MOD = 10**9+7
inf = 1<<64
def solve():
    n,k = mii()
    ans = 0
    for i in range(n+1):
        if sum(int(x) for x in str(i))==k:
            ans+=1
    print(ans)
t = 1
# t = ii()
for _ in range(t):
    solve()

Submission Info

Judge Result