Submission #1407842
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(100001) % MOD << endl; return 0; }
Submission Info
Submission Time | |
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Task | B - 難易度 |
User | KokiYmgch |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1334 Byte |
Status | AC |
Exec Time | 49 ms |
Memory | 4608 KB |
Judge Result
Set Name | Sample | Subtask1 | Subtask2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 50 / 50 | 50 / 50 | ||||||
Status |
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Set Name | Test Cases |
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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 | AC | 3 ms | 4096 KB |
subtask1_02.txt | AC | 3 ms | 4224 KB |
subtask1_03.txt | AC | 4 ms | 4224 KB |
subtask1_04.txt | AC | 4 ms | 4224 KB |
subtask1_05.txt | AC | 4 ms | 4224 KB |
subtask1_06.txt | AC | 4 ms | 4224 KB |
subtask1_07.txt | AC | 4 ms | 4224 KB |
subtask1_08.txt | AC | 4 ms | 4224 KB |
subtask1_09.txt | AC | 4 ms | 4224 KB |
subtask1_10.txt | AC | 4 ms | 4224 KB |
subtask1_11.txt | AC | 4 ms | 4224 KB |
subtask1_12.txt | AC | 4 ms | 4224 KB |
subtask1_13.txt | AC | 4 ms | 4224 KB |
subtask1_14.txt | AC | 4 ms | 4224 KB |
subtask1_15.txt | AC | 4 ms | 4224 KB |
subtask1_16.txt | AC | 4 ms | 4224 KB |
subtask1_17.txt | AC | 4 ms | 4224 KB |
subtask1_18.txt | AC | 4 ms | 4224 KB |
subtask1_19.txt | AC | 4 ms | 4224 KB |
subtask2_01.txt | AC | 17 ms | 4224 KB |
subtask2_02.txt | AC | 15 ms | 4224 KB |
subtask2_03.txt | AC | 9 ms | 4224 KB |
subtask2_04.txt | AC | 9 ms | 4224 KB |
subtask2_05.txt | AC | 38 ms | 4480 KB |
subtask2_06.txt | AC | 35 ms | 4480 KB |
subtask2_07.txt | AC | 5 ms | 4224 KB |
subtask2_08.txt | AC | 5 ms | 4224 KB |
subtask2_09.txt | AC | 41 ms | 4480 KB |
subtask2_10.txt | AC | 25 ms | 4352 KB |
subtask2_11.txt | AC | 5 ms | 4224 KB |
subtask2_12.txt | AC | 24 ms | 4352 KB |
subtask2_13.txt | AC | 6 ms | 4224 KB |
subtask2_14.txt | AC | 30 ms | 4352 KB |
subtask2_15.txt | AC | 48 ms | 4608 KB |
subtask2_16.txt | AC | 49 ms | 4608 KB |
subtask2_17.txt | AC | 48 ms | 4608 KB |
subtask2_18.txt | AC | 48 ms | 4608 KB |
subtask2_19.txt | AC | 48 ms | 4608 KB |
subtask2_20.txt | AC | 40 ms | 4608 KB |
subtask2_21.txt | AC | 40 ms | 4608 KB |