Submission #673224

#	Time	Username	Problem	Language	Result	Execution time	Memory
673224		ThegeekKnight16	Jelly Flavours (IOI20_jelly)	C++17	0 / 100	163 ms	156440 KiB

jelly

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

const int MAXN = 2e3 + 10;
const int MAXM = 1e4 + 10;
const int INF = 0x3f3f3f3f;

int dp[MAXN][MAXM];
int dp2[MAXN][MAXM];
int n, a[MAXN], b[MAXN];
vector<pair<int, int> > buga;

void limpar(int n, int m)
{
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
          dp[i][j] = 0;
          dp2[i][j] = 0;
        }
    }
}

int find_maximum_unique(int x, int y, vector<int> _a, vector<int> _b) {
  n = _a.size();  
  //if (rand() % 2) {
    // swap(x, y);
    // swap(_a, _b);
  // }

  for (int i = 0; i < n; i++) 
    buga.emplace_back(_a[i], _b[i]);

  sort(buga.begin(), buga.end());

  for (int i = 1; i <= n; i++) {
    a[i] = buga[i - 1].first;
    b[i] = buga[i - 1].second;
  }

  for (int i = 1; i <= n; i++) {
    for (int j = 0; j <= x; j++) {
      dp[i][j] = dp[i - 1][j];

      if (j >= a[i])
        dp[i][j] = max(dp[i][j], dp[i - 1][j - a[i]] + 1);
    }
  }

  for(int i = n, j = x; i >= 1; i--)
  {
      if (j >= a[i] && dp[i][j] == dp[i-1][j - a[i]] + 1) {
        j -= a[i]; b[i] = INF;
      }
  }

  for (int i = 1; i <= n; i++) {
    for (int j = 0; j <= y; j++) {
      dp2[i][j] = dp2[i - 1][j];

      if (j >= b[i])
        dp2[i][j] = max(dp2[i][j], dp2[i - 1][j - b[i]] + 1);
    }
  }

  int resp = (dp[n][x] + dp2[n][y]);

  limpar(n, max(x, y));
  
  for (int i = 1; i <= n; i++) {
    a[i] = buga[i - 1].first;
    b[i] = buga[i - 1].second;
  }

  for (int i = 1; i <= n; i++) {
    for (int j = 0; j <= y; j++) {
      dp[i][j] = dp[i - 1][j];

      if (j >= b[i])
        dp[i][j] = max(dp[i][j], dp[i - 1][j - b[i]] + 1);
    }
  }

  for(int i = n, j = x; i >= 1; i--)
  {
      if (j >= a[i] && dp[i][j] == dp[i-1][j - b[i]] + 1) {
        j -= b[i]; a[i] = INF;
      }
  }

  for (int i = 1; i <= n; i++) {
    for (int j = 0; j <= x; j++) {
      dp2[i][j] = dp2[i - 1][j];

      if (j >= a[i])
        dp2[i][j] = max(dp2[i][j], dp2[i - 1][j - a[i]] + 1);
    }
  }
  
  return max(resp, dp[n][x] + dp[n][y]);
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 24
• Subtask 3: 0 / 9
• Subtask 4: 0 / 10
• Subtask 5: 0 / 14
• Subtask 6: 0 / 32