#603564 (C++17) No.1336 Union on Blackboard

• 問題: No.1336 Union on Blackboard
• ユーザー: firiexp
• 提出日時: 2021-01-15 21:22:53
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 3 ms / 2,000 ms
• コード長: 2,505 bytes
• コンパイル時間: 843 ms
• コンパイル使用メモリ: 102,708 KB
• 実行使用メモリ: 5,248 KB
• 最終ジャッジ日時: 2024-11-26 13:05:49
• 合計ジャッジ時間: 1,738 ms
• ジャッジサーバーID （参考情報）: judge1 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 5,248 KB
testcase_01	AC	2 ms; 5,248 KB
testcase_02	AC	2 ms; 5,248 KB
testcase_03	AC	3 ms; 5,248 KB
testcase_04	AC	2 ms; 5,248 KB
testcase_05	AC	2 ms; 5,248 KB
testcase_06	AC	3 ms; 5,248 KB
testcase_07	AC	2 ms; 5,248 KB
testcase_08	AC	2 ms; 5,248 KB
testcase_09	AC	2 ms; 5,248 KB
testcase_10	AC	2 ms; 5,248 KB
testcase_11	AC	3 ms; 5,248 KB
testcase_12	AC	3 ms; 5,248 KB
testcase_13	AC	2 ms; 5,248 KB
testcase_14	AC	3 ms; 5,248 KB
testcase_15	AC	3 ms; 5,248 KB
testcase_16	AC	3 ms; 5,248 KB
testcase_17	AC	3 ms; 5,248 KB
testcase_18	AC	2 ms; 5,248 KB
testcase_19	AC	3 ms; 5,248 KB
testcase_20	AC	3 ms; 5,248 KB
testcase_21	AC	3 ms; 5,248 KB
testcase_22	AC	3 ms; 5,248 KB
testcase_23	AC	3 ms; 5,248 KB
testcase_24	AC	3 ms; 5,248 KB
testcase_25	AC	3 ms; 5,248 KB
testcase_26	AC	3 ms; 5,248 KB
testcase_27	AC	3 ms; 5,248 KB
testcase_28	AC	3 ms; 5,248 KB
testcase_29	AC	3 ms; 5,248 KB
testcase_30	AC	2 ms; 5,248 KB
testcase_31	AC	1 ms; 5,248 KB

ソースコード

#include <iostream>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>

static const int MOD = 1000000007;
using ll = long long;
using u32 = unsigned;
using u64 = unsigned long long;
using namespace std;

template<class T> constexpr T INF = ::numeric_limits<T>::max() / 32 * 15 + 208;

template <u32 M>
struct modint {
    u32 val;
public:
    static modint raw(int v) { modint x; x.val = v; return x; }
    modint() : val(0) {}
    template <class T>
    modint(T v) { ll x = (ll)(v%(ll)(M)); if (x < 0) x += M; val = u32(x); }
    modint(bool v) { val = ((unsigned int)(v) % M); }
    modint& operator++() { val++; if (val == M) val = 0; return *this; }
    modint& operator--() { if (val == 0) val = M; val--; return *this; }
    modint operator++(int) { modint result = *this; ++*this; return result; }
    modint operator--(int) { modint result = *this; --*this; return result; }
    modint& operator+=(const modint& b) { val += b.val; if (val >= M) val -= M; return *this; }
    modint& operator-=(const modint& b) { val -= b.val; if (val >= M) val += M; return *this; }
    modint& operator*=(const modint& b) { u64 z = val; z *= b.val; val = (u32)(z % M); return *this; }
    modint& operator/=(const modint& b) { return *this = *this * b.inv(); }
    modint operator+() const { return *this; }
    modint operator-() const { return modint() - *this; }
    modint pow(long long n) const { modint x = *this, r = 1; while (n) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; }
    modint inv() const { return pow(M-2); }
    friend modint operator+(const modint& a, const modint& b) { return modint(a) += b; }
    friend modint operator-(const modint& a, const modint& b) { return modint(a) -= b; }
    friend modint operator*(const modint& a, const modint& b) { return modint(a) *= b; }
    friend modint operator/(const modint& a, const modint& b) { return modint(a) /= b; }
    friend bool operator==(const modint& a, const modint& b) { return a.val == b.val; }
    friend bool operator!=(const modint& a, const modint& b) { return a.val != b.val; }
};
using mint = modint<MOD>;

void solve(){
    int n;
    cin >> n;
    vector<int> v(n);
    for (auto &&i : v) scanf("%d", &i);
    mint a = (v[0]+1)*(v[1]+1)-1;
    for (int i = 2; i < n; ++i) {
        a = (a+1)*(v[i]+1)-1;
    }
    cout << a.val << "\n";
}

int main() {
    int t;
    cin >> t;
    while(t--){
        solve();
    }
    return 0;
}