Submission #3725128
Source Code Expand
#include <bits/stdc++.h> #define int long long #define uint unsigned int #define rep(i, a, n) for (int i = a; i < n; i++) #define all(a) (a).begin(), (a).end() #define sz(a) (a).size() #define pb push_back #define eb emplace_back #define mp make_pair #define mt make_tuple #define dump(x) cerr << #x << " = " << (x) << endl; #define dumpi(i, x) cerr << string((i), ' ') << #x << " = " << (x) << endl; #define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl; using namespace std; using pii = pair<int, int>; constexpr int MOD = 1000000007; constexpr int INF = 1LL << 30; constexpr double EPS = 1e-10; struct BIT { int n; vector<int> bit; BIT() {} BIT(int n, int e = 0) { build(n, e); } void build(int n_, int e = 0) { n = n_ + 1; bit.resize(n, e); } void add(int k, int x) { while (k <= n) { bit[k] += x; k += k & -k; } } int sum(int k) { int r = 0; while (k > 0) { r += bit[k]; k -= k & -k; } return r; } int &operator[](int i) { return bit[i]; } }; int N; int B[100010], RB[100010]; BIT bitL, bitR; int L[100010], R[100010]; signed main() { cin.tie(0); ios_base::sync_with_stdio(false); cout << fixed << setprecision(10); cin >> N; rep(i, 0, N) { cin >> B[i]; RB[i] = B[i]; } reverse(RB, RB+N); bitL.build(N); bitR.build(N); rep(i, 0, N) { L[B[i]] = i - bitL.sum(B[i]); bitL.add(B[i], 1); R[RB[i]] = i - bitR.sum(RB[i]); bitR.add(RB[i], 1); } int ans = 0; rep(i, 1, N+1) { ans += min(L[i], R[i]); } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - 積み木 |
User | legosuke |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1712 Byte |
Status | AC |
Exec Time | 20 ms |
Memory | 4992 KB |
Judge Result
Set Name | Sample | Subtask1 | Subtask2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 30 / 30 | 70 / 70 | ||||||
Status |
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Set Name | Test Cases |
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Sample | 00_sample_00.txt, 00_sample_01.txt, 00_sample_02.txt |
Subtask1 | 00_sample_00.txt, 00_sample_01.txt, 00_sample_02.txt, 10_small_00.txt, 10_small_01.txt, 10_small_02.txt, 10_small_03.txt, 10_small_04.txt, 10_small_05.txt, 10_small_06.txt, 10_small_07.txt, 10_small_08.txt, 10_small_09.txt, 10_small_10.txt, 10_small_11.txt, 10_small_12.txt, 10_small_13.txt, 10_small_14.txt, 10_small_15.txt, 10_small_16.txt, 10_small_17.txt, 10_small_18.txt, 10_small_19.txt, 10_small_20.txt, 10_small_21.txt, 10_small_22.txt, 10_small_23.txt, 10_small_24.txt, 10_small_25.txt, 10_small_26.txt, 10_small_27.txt, 10_small_28.txt, 10_small_29.txt |
Subtask2 | 00_sample_00.txt, 00_sample_01.txt, 00_sample_02.txt, 10_small_00.txt, 10_small_01.txt, 10_small_02.txt, 10_small_03.txt, 10_small_04.txt, 10_small_05.txt, 10_small_06.txt, 10_small_07.txt, 10_small_08.txt, 10_small_09.txt, 10_small_10.txt, 10_small_11.txt, 10_small_12.txt, 10_small_13.txt, 10_small_14.txt, 10_small_15.txt, 10_small_16.txt, 10_small_17.txt, 10_small_18.txt, 10_small_19.txt, 10_small_20.txt, 10_small_21.txt, 10_small_22.txt, 10_small_23.txt, 10_small_24.txt, 10_small_25.txt, 10_small_26.txt, 10_small_27.txt, 10_small_28.txt, 10_small_29.txt, 20_rand_00.txt, 20_rand_01.txt, 20_rand_02.txt, 20_rand_03.txt, 20_rand_04.txt, 20_rand_05.txt, 20_rand_06.txt, 20_rand_07.txt, 20_rand_08.txt, 20_rand_09.txt, 20_rand_10.txt, 20_rand_11.txt, 20_rand_12.txt, 20_rand_13.txt, 20_rand_14.txt, 20_rand_15.txt, 20_rand_16.txt, 20_rand_17.txt, 20_rand_18.txt, 20_rand_19.txt, 20_rand_20.txt, 20_rand_21.txt, 20_rand_22.txt, 20_rand_23.txt, 20_rand_24.txt, 20_rand_25.txt, 20_rand_26.txt, 20_rand_27.txt, 20_rand_28.txt, 20_rand_29.txt, 30_max_0.txt, 30_max_1.txt, 30_max_2.txt, 30_max_3.txt, 30_max_4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_sample_00.txt | AC | 1 ms | 256 KB |
00_sample_01.txt | AC | 1 ms | 256 KB |
00_sample_02.txt | AC | 1 ms | 256 KB |
10_small_00.txt | AC | 1 ms | 256 KB |
10_small_01.txt | AC | 1 ms | 256 KB |
10_small_02.txt | AC | 1 ms | 256 KB |
10_small_03.txt | AC | 1 ms | 256 KB |
10_small_04.txt | AC | 1 ms | 256 KB |
10_small_05.txt | AC | 1 ms | 256 KB |
10_small_06.txt | AC | 1 ms | 256 KB |
10_small_07.txt | AC | 1 ms | 256 KB |
10_small_08.txt | AC | 1 ms | 256 KB |
10_small_09.txt | AC | 1 ms | 256 KB |
10_small_10.txt | AC | 1 ms | 256 KB |
10_small_11.txt | AC | 1 ms | 256 KB |
10_small_12.txt | AC | 1 ms | 256 KB |
10_small_13.txt | AC | 1 ms | 256 KB |
10_small_14.txt | AC | 1 ms | 256 KB |
10_small_15.txt | AC | 1 ms | 256 KB |
10_small_16.txt | AC | 1 ms | 256 KB |
10_small_17.txt | AC | 1 ms | 256 KB |
10_small_18.txt | AC | 1 ms | 256 KB |
10_small_19.txt | AC | 1 ms | 256 KB |
10_small_20.txt | AC | 1 ms | 256 KB |
10_small_21.txt | AC | 1 ms | 256 KB |
10_small_22.txt | AC | 1 ms | 256 KB |
10_small_23.txt | AC | 1 ms | 256 KB |
10_small_24.txt | AC | 1 ms | 256 KB |
10_small_25.txt | AC | 1 ms | 256 KB |
10_small_26.txt | AC | 1 ms | 256 KB |
10_small_27.txt | AC | 1 ms | 256 KB |
10_small_28.txt | AC | 1 ms | 256 KB |
10_small_29.txt | AC | 1 ms | 256 KB |
20_rand_00.txt | AC | 12 ms | 3200 KB |
20_rand_01.txt | AC | 2 ms | 640 KB |
20_rand_02.txt | AC | 4 ms | 1152 KB |
20_rand_03.txt | AC | 6 ms | 1664 KB |
20_rand_04.txt | AC | 13 ms | 3328 KB |
20_rand_05.txt | AC | 17 ms | 4480 KB |
20_rand_06.txt | AC | 19 ms | 4736 KB |
20_rand_07.txt | AC | 14 ms | 3456 KB |
20_rand_08.txt | AC | 4 ms | 1152 KB |
20_rand_09.txt | AC | 3 ms | 896 KB |
20_rand_10.txt | AC | 12 ms | 3200 KB |
20_rand_11.txt | AC | 6 ms | 1664 KB |
20_rand_12.txt | AC | 6 ms | 1664 KB |
20_rand_13.txt | AC | 8 ms | 2048 KB |
20_rand_14.txt | AC | 5 ms | 1408 KB |
20_rand_15.txt | AC | 2 ms | 512 KB |
20_rand_16.txt | AC | 8 ms | 2304 KB |
20_rand_17.txt | AC | 2 ms | 384 KB |
20_rand_18.txt | AC | 20 ms | 4864 KB |
20_rand_19.txt | AC | 4 ms | 1152 KB |
20_rand_20.txt | AC | 3 ms | 896 KB |
20_rand_21.txt | AC | 12 ms | 3200 KB |
20_rand_22.txt | AC | 12 ms | 3328 KB |
20_rand_23.txt | AC | 19 ms | 4736 KB |
20_rand_24.txt | AC | 9 ms | 2304 KB |
20_rand_25.txt | AC | 9 ms | 2560 KB |
20_rand_26.txt | AC | 7 ms | 1792 KB |
20_rand_27.txt | AC | 7 ms | 1920 KB |
20_rand_28.txt | AC | 16 ms | 3968 KB |
20_rand_29.txt | AC | 3 ms | 896 KB |
30_max_0.txt | AC | 16 ms | 4992 KB |
30_max_1.txt | AC | 16 ms | 4992 KB |
30_max_2.txt | AC | 16 ms | 4992 KB |
30_max_3.txt | AC | 16 ms | 4992 KB |
30_max_4.txt | AC | 16 ms | 4992 KB |