Submission #19705947


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

template<typename T1, typename T2> inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }

void solve() {
  int n; cin >> n;
  vector<int> a(n);
  for(auto &x : a) cin >> x;

  vector<vector<int>> dp(n+1, vector<int>(n+1, 0));
  int ans = 0;

  for(int k=0; k<n; ++k) {
    for(int i=0, j=k; j<=n; ++i, ++j) {
      if(0 <= i-1) {
        chmax(dp[i-1][j], dp[i][j]);
      }
      if(j+1 <= n) {
        chmax(dp[i][j+1], dp[i][j]);
      }
      for(int ni=i-3, nj=j; ni<=i; ++ni, ++nj) {
        if(0 <= ni && nj <= n) {
          int sum = 0;
          for(int l=ni; l<i; ++l) {
            sum += a[l];
          }
          for(int r=j; r<nj; ++r) {
            sum += a[r];
          }
          chmax(sum, 0);
          if(chmax(dp[ni][nj], dp[i][j] + sum)) {
            chmax(ans, dp[ni][nj]);
          }
        }
      }
    }
  }

  cout << ans << endl;
}

signed main() {
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  cout << fixed << setprecision(10);
  solve();
  return 0;
}

Submission Info

Submission Time
Task B - Three Coins
User chiara_kyokkou
Language C++ (GCC 9.2.1)
Score 0
Code Size 1107 Byte
Status WA
Exec Time 22 ms
Memory 4220 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 800
Status
AC × 3
AC × 5
WA × 44
Set Name Test Cases
Sample example0.txt, example1.txt, example2.txt
All 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, 037.txt, 038.txt, 039.txt, 040.txt, 041.txt, 042.txt, 043.txt, 044.txt, 045.txt, example0.txt, example1.txt, example2.txt
Case Name Status Exec Time Memory
000.txt WA 13 ms 4216 KB
001.txt WA 14 ms 4076 KB
002.txt WA 10 ms 4048 KB
003.txt WA 10 ms 4172 KB
004.txt WA 14 ms 4048 KB
005.txt WA 12 ms 4220 KB
006.txt WA 13 ms 4216 KB
007.txt WA 13 ms 4104 KB
008.txt WA 10 ms 4112 KB
009.txt WA 15 ms 4076 KB
010.txt WA 11 ms 4128 KB
011.txt WA 15 ms 4220 KB
012.txt WA 10 ms 4040 KB
013.txt WA 12 ms 4176 KB
014.txt WA 15 ms 4188 KB
015.txt WA 12 ms 4112 KB
016.txt WA 11 ms 4148 KB
017.txt WA 16 ms 4036 KB
018.txt WA 12 ms 4128 KB
019.txt WA 13 ms 4192 KB
020.txt WA 14 ms 4112 KB
021.txt WA 13 ms 4112 KB
022.txt WA 10 ms 4068 KB
023.txt WA 10 ms 4072 KB
024.txt WA 13 ms 4180 KB
025.txt WA 13 ms 4036 KB
026.txt WA 11 ms 4140 KB
027.txt WA 13 ms 4156 KB
028.txt WA 10 ms 4220 KB
029.txt WA 14 ms 4216 KB
030.txt WA 10 ms 4112 KB
031.txt WA 9 ms 4112 KB
032.txt WA 10 ms 4192 KB
033.txt WA 9 ms 4108 KB
034.txt WA 13 ms 4160 KB
035.txt AC 12 ms 4220 KB
036.txt WA 15 ms 4072 KB
037.txt WA 9 ms 4104 KB
038.txt WA 15 ms 4176 KB
039.txt WA 10 ms 4156 KB
040.txt WA 12 ms 4068 KB
041.txt WA 22 ms 4108 KB
042.txt WA 10 ms 4124 KB
043.txt WA 13 ms 4008 KB
044.txt WA 14 ms 4124 KB
045.txt AC 10 ms 4040 KB
example0.txt AC 2 ms 3584 KB
example1.txt AC 2 ms 3528 KB
example2.txt AC 2 ms 3476 KB