問題: atcoder.jp 解答: #include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using ll = long long; using namespace std; int main(){ int n = 6, p = 998244353; vector<ll> a(n); rep(i,6) cin >> a[i]; ll b, d; b = ((((a[0]%p)*(a[1]%p))%p)*(a[2</ll></bits/stdc++.h>…