提出 #44294528

---

ソースコード 拡げる

#ifdef ONPC
#define _GLIBCXX_DEBUG
#else
#pragma GCC optimize("O3")
#pragma unroll
#endif

#include <bits/stdc++.h>

const int mod = 998244353;

int mult(int a, int b) {
    return (1ll * a * b) % mod;
}

int sum(int a, int b) {
    return (a + b) % mod;
}


using namespace std;

typedef long double ld;
typedef long long ll;

int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::cout.tie(nullptr);
    std::cout << setprecision(15) << fixed;
#ifdef ONPC
    freopen("../input.txt", "r", stdin);
#endif
    int n;
    string s;
    vector<int> a = {0}, b;
    cin >> n >> s;
    if (s[0] != '1' && s[1] != '1') {
        cout << "-1";
        return 0;
    }
    for (int i = 0; i < n; ++i) {
        if (s[i] == '1' || i == 0) {
            a.back()++;
        } else {
            b.push_back(s[i] - '1');
            if (a.back() == 0) {
                cout << "-1";
                return 0;
            }
            a.push_back(0);
        }
    }
    if (a.size() == 1) {
        cout << a.back() - 1 << '\n';
        return 0;
    }
    int cur = a.back() + 1;
//    cout << cur << "\n";
    a.pop_back();
    for (int i = a.size() - 1; i >= 0; --i) {
//        ll prev = cur;
        cur = sum(cur, sum(a[i] + 1, mult(cur, b[i])));
//        cout << cur << "\n";
    }
    cout << cur - 2 << "\n";
    return 0;
}

提出情報

コンパイルエラー

./Main.cpp:5: warning: ignoring #pragma unroll  [-Wunknown-pragmas]
    5 | #pragma unroll
      | 

ジャッジ結果