oj.uz

답안 #270407

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
270407 2020-08-17T14:59:21 Z Haunted_Cpp Discharging (NOI20_discharging) C++17
0 / 100
 1000 ms 19960 KB 
/**
 *  author: Haunted_Cpp
**/
 
#include <bits/stdc++.h>
using namespace std;
 
#pragma GCC optimize("Ofast")
#pragma GCC target("fma,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")
 
template<typename T> ostream &operator << (ostream &os, const vector<T> &v) { os << '{'; string sep; for (const auto &x : v) os << sep << x, sep = ", "; return os << '}'; }
template<typename T, size_t size> ostream &operator << (ostream &os, const array<T, size> &arr) { os << '{'; string sep; for (const auto &x : arr) os << sep << x, sep = ", "; return os << '}'; }
template<typename A, typename B> ostream &operator << (ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
 
void debug_out() { cerr << endl; }
template<typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << ' ' << H; debug_out(T...); }
 
#ifdef LOCAL
#define debug(...) cerr << "(" << #__VA_ARGS__ << "):", debug_out(__VA_ARGS__)
#else
#define debug(...) 47
#endif

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0); 
  int n;
  cin >> n;
  vector<int> arr(n + 1);
  for (int i = 1; i <= n; i++) {
    cin >> arr[i];
  }
  vector<long long> dp(n + 1, 1e18);
  vector<long long> pre(n + 1);
  pre[0] = arr[0];
  for (int i = 1; i <= n; i++) {
    pre[i] = max(pre[i - 1], 1LL * arr[i]);
  }
  dp[0] = 0;
  for (int i = 1; i <= n; i++) {
    int T = 0;
    int mx = 0;
    for (int j = i - 1; j >= 0; j--) {
      ++T;
      mx = max(mx, arr[j + 1]);
      dp[i] = min(dp[i], dp[j] + (mx + pre[j]) * T);
    }
  }
  cout << dp[n] << '\n';
  return 0;
}

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Incorrect 1 ms 384 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1060 ms 19960 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Incorrect 1 ms 384 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #6
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Incorrect 1 ms 384 KB Output isn't correct
6 Halted 0 ms 0 KB -