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OI-codes/S2OJ/217/217.cpp

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#include <bits/stdc++.h>
using namespace std;
const int mod = 998244353;
int n, m, t, p[5000050], inv[10000005];
int read() {
int res = 0;
char ch = getchar();
while (!isdigit(ch) && !isalpha(ch)) {
ch = getchar();
}
if (ch >= 'A') {
return ch - 64 + n;
}
while (isdigit(ch)) {
res = res * 10 + ch - 48;
ch = getchar();
}
return res;
}
long long binpow(long long a, long long b) {
a %= mod;
long long res = 1;
while (b > 0) {
if (b & 1) res = res * a % mod;
a = a * a % mod;
b >>= 1;
}
return res;
}
int main() {
cin >> n;
p[1] = 1;
for (int i = 1; i <= n; i++) {
cin >> m;
if (!inv[m]) {
inv[m] = binpow(m, mod - 2);
}
p[i] = (long long)p[i] * inv[m] % mod;
for (int j = 1; j <= m; j++) {
t = read();
p[t] = (p[t] + p[i]) % mod;
}
}
for (int i = 1; i <= 26; i++) {
cout << p[n + i] << ' ';
}
cout << endl;
return 0;
}