Submission #1407841


Source Code Expand

#include "bits/stdc++.h"
using namespace std;

#define rep(i, n) for (int i = 0; i < (n); i ++)

//1-origin
template <typename T>
struct FenwickTree {
        vector<T> data;
        FenwickTree(int n) : data(n + 1, 0) {}
        //data[i] += x
        void add(int i, T x){
                while (i <= (int)data.size()) {
                        data[i] += x;
                        i += i & -i;
                }
        }
        //[1, i)
        T sum(int i){
                T res = 0;
                while (i > 0) {
                        res += data[i];
                        i -= i & -i;
                }
                return res;
        }
        //[l, r)
        T sum(int l, int r) { return sum(r) - sum(l); }
};

static const int MOD = 1000000007;

int main() {
        int n;
        cin >> n;
        vector<int> d(n);
        rep(i, n) cin >> d[i];
        sort(d.begin(), d.end());
        vector<FenwickTree<long long>> ft(4, FenwickTree<long long>(100001));
        rep(i, n) { 
                int x = d[i];
                rep(j, 4) {
                        if (j == 0) ft[0].add(x, 1);
                        else ft[j].add(x, ft[j - 1].sum(x / 2) % MOD);
                }
        }
        cout << ft[3].sum(10000) % MOD << endl;
        return 0;
}

Submission Info

Submission Time
Task B - 難易度
User KokiYmgch
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1333 Byte
Status WA
Exec Time 48 ms
Memory 4608 KB

Judge Result

Set Name Sample Subtask1 Subtask2
Score / Max Score 0 / 0 0 / 50 0 / 50
Status
AC × 3
AC × 3
WA × 19
AC × 5
WA × 38
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
Subtask1 sample_01.txt, sample_02.txt, sample_03.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt
Subtask2 sample_01.txt, sample_02.txt, sample_03.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask2_13.txt, subtask2_14.txt, subtask2_15.txt, subtask2_16.txt, subtask2_17.txt, subtask2_18.txt, subtask2_19.txt, subtask2_20.txt, subtask2_21.txt
Case Name Status Exec Time Memory
sample_01.txt AC 3 ms 4096 KB
sample_02.txt AC 3 ms 4096 KB
sample_03.txt AC 3 ms 4096 KB
subtask1_01.txt WA 3 ms 4096 KB
subtask1_02.txt WA 3 ms 4096 KB
subtask1_03.txt WA 4 ms 4224 KB
subtask1_04.txt WA 4 ms 4224 KB
subtask1_05.txt WA 4 ms 4224 KB
subtask1_06.txt WA 4 ms 4224 KB
subtask1_07.txt WA 4 ms 4224 KB
subtask1_08.txt WA 4 ms 4224 KB
subtask1_09.txt WA 4 ms 4224 KB
subtask1_10.txt WA 4 ms 4224 KB
subtask1_11.txt WA 4 ms 4224 KB
subtask1_12.txt WA 4 ms 4224 KB
subtask1_13.txt WA 4 ms 4224 KB
subtask1_14.txt WA 4 ms 4224 KB
subtask1_15.txt WA 4 ms 4224 KB
subtask1_16.txt WA 4 ms 4224 KB
subtask1_17.txt WA 4 ms 4224 KB
subtask1_18.txt WA 4 ms 4224 KB
subtask1_19.txt WA 4 ms 4224 KB
subtask2_01.txt WA 17 ms 4224 KB
subtask2_02.txt WA 14 ms 4224 KB
subtask2_03.txt WA 8 ms 4224 KB
subtask2_04.txt WA 9 ms 4224 KB
subtask2_05.txt WA 39 ms 4480 KB
subtask2_06.txt WA 35 ms 4480 KB
subtask2_07.txt WA 5 ms 4224 KB
subtask2_08.txt WA 5 ms 4224 KB
subtask2_09.txt WA 41 ms 4480 KB
subtask2_10.txt WA 26 ms 4352 KB
subtask2_11.txt WA 5 ms 4224 KB
subtask2_12.txt WA 24 ms 4352 KB
subtask2_13.txt WA 8 ms 4224 KB
subtask2_14.txt WA 30 ms 4352 KB
subtask2_15.txt WA 48 ms 4608 KB
subtask2_16.txt WA 48 ms 4608 KB
subtask2_17.txt WA 48 ms 4608 KB
subtask2_18.txt WA 48 ms 4608 KB
subtask2_19.txt WA 48 ms 4608 KB
subtask2_20.txt AC 39 ms 4608 KB
subtask2_21.txt AC 41 ms 4608 KB