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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. typedef long long ll;
  6. constexpr int MOD = 998244353; 
  7. int main() {
  8. 	string S; cin >> S;
  9. 	int N = S.size();
  10. 	vector<ll> W(N, 1), V(N);
  11. 	for (int i = 0; i < N; ++i) V[i] = S[i] - '0';
  12. 	for (int i = N-2; i >= 0; --i) W[i] = 10 * W[i+1] % MOD;
  13. 	ll ans = 0;
  14. 	for (int a = 0; a < N; ++a) {
  15. 		for (int b = a+1; b < N; ++b) {
  16. 			for (int c = b+1; c < N; ++c) {
  17. 				if (a == 0 && S[c] == '0') continue;
  18. 				swap(V[c],V[b]);
  19. 				swap(V[a],V[b]);
  20. 				for (int i = 0; i < N; ++i) ans += W[i] * V[i];
  21. 				ans %= MOD;
  22. 				swap(V[a],V[b]);
  23. 				swap(V[c],V[b]);
  24. 			}
  25. 		}
  26. 	} 
  27. 	cout << (ans%MOD+MOD)%MOD << endl; 
  28. }
  29.  
Success #stdin #stdout 1.66s 4544KB
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stdin
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12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
stdout
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147467388
https://ideone.com/bGBXgu
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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