oj.uz

답안 #232941

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
232941 2020-05-18T17:40:52 Z kristopher23 Mountains (NOI20_mountains) C++17
64 / 100
 2000 ms 2688 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

using vi = vector<int>;
using vll = vector<ll>;

using pi = pair<int, int>;
using pll = pair<ll, ll>;

constexpr auto MOD = 1e9 + 7;
constexpr auto INF = 0x3f3f3f3f;

#define rep(i, a, b) for (auto i = a; i < b; ++i)

template <class T> inline T square(T x) { return x * x; };

template <class T> void print(const T &val) { cout << val << '\n'; }

template <class Iterator> void print(Iterator begin, Iterator end) {
  for (auto it = begin; it != end; ++it) {
    cout << *it << ' ';
  }

  cout << '\n';
}

using ull = unsigned long long;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);

  ull n;
  cin >> n;

  vector<ull> a(n);

  for (auto &i : a) {
    cin >> i;
  }

  ull ans = 0;

  for (ull i = 1; i < n - 1; ++i) {
    ull x = 0, y = 0;
    for (ull j = 0; j < i; ++j) {
      if (a[j] < a[i]) {
        ++x;
      }
    }
    for (ull j = i + 1; j < n; ++j) {
      if (a[j] < a[i]) {
        ++y;
      }
    }

    ans += (x * y);
  }

  print(ans);
}

Subtask #1
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Execution timed out 2084 ms 2688 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #2
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2092 ms 2688 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2092 ms 2688 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct

Subtask #5
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 57 ms 384 KB Output is correct
12 Correct 57 ms 384 KB Output is correct
13 Correct 56 ms 384 KB Output is correct
14 Correct 59 ms 504 KB Output is correct
15 Correct 57 ms 384 KB Output is correct
16 Correct 57 ms 384 KB Output is correct
17 Correct 57 ms 504 KB Output is correct
18 Correct 58 ms 384 KB Output is correct
19 Correct 64 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct

Subtask #6
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2092 ms 2688 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Execution timed out 2084 ms 2688 KB Time limit exceeded
3 Halted 0 ms 0 KB -