この問題(ABC164-D)で atcoder.jp #include <bits/stdc++.h> using namespace std; long long N; string S; long long solve() { vector<long long> val(2019, 0); long long tenfactor = 1; long long cur = 0; val[cur]++; for (int i = 0; i < N; ++i) { cur = (cur + (S[N - i - 1]</long></bits/stdc++.h>…