oj.uz

Submission #235487

# Submission time Handle Problem Language Result Execution time Memory
235487 2020-05-28T11:08:58 Z doowey Holding (COCI20_holding) C++14
55 / 110
 155 ms 58112 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = 52;
const int S = N * (N + 1);
const int M = S/2;
const int inf = (int)1e9;

int dpL[N][N][S]; // pick i items, indice sum j
int dpR[N][N][S];
int a[N];

void upd(int &a, int b){  
  a = min(a, b);
}

int main(){
  fastIO;
  int n, l, r, k;
  cin >> n >> l >> r >> k;
  for(int q = 0; q <= n + 1; q ++ ){
    for(int d = 0; d <= n; d ++ ){
      for(int s = 0; s < S; s ++ ){
        dpL[q][d][s] = inf;
        dpR[q][d][s] = inf;
      }
    }
  }
  dpL[0][0][M]=0;
  int ans = 0;
  for(int i = 1; i <= n; i ++ ){
    cin >> a[i];
    if(i >= l && i <= r) ans += a[i];
  }
  for(int i = 1; i <= r; i ++ ){
    for(int j = 0 ; j <= n ; j ++ ){
      for(int x = 0; x < S ; x ++ ){
        if(i < l){
          if(dpL[i-1][j][x] == inf) continue;
          upd(dpL[i][j + 1][x - i], dpL[i-1][j][x] + a[i]);
          upd(dpL[i][j][x], dpL[i-1][j][x]);
        }
        else{
          if(dpL[i-1][j][x] == inf) continue;
          if(j) upd(dpL[i][j - 1][x + i], dpL[i-1][j][x]);
          upd(dpL[i][j][x], dpL[i-1][j][x] + a[i]);
        }
      }
    }
  }
  for(int x = 0; x <= k ; x ++ ){
    upd(ans, dpL[r][0][x + M]);
  }
  dpR[n + 1][0][M]=0;
  for(int i = n; i >= l ; i -- ){
    for(int j = 0 ; j <= n; j ++ ){
      for(int x = 0; x < S; x ++ ){
        if(dpR[i + 1][j][x] == inf) continue;
        if(i > r){
          upd(dpR[i][j + 1][x + i], dpR[i + 1][j][x] + a[i]);
          upd(dpR[i][j][x], dpR[i + 1][j][x]);
        }
        else{
          if(j) upd(dpR[i][j - 1][x - i], dpR[i + 1][j][x]);
          upd(dpR[i][j][x], dpR[i + 1][j][x] + a[i]);
        }
      }
    }
  }
  for(int i = l ; i + 1 <= r; i ++ ){
    for(int x = 0; x <= k; x ++ ){
      if(dpL[i][0][x] == inf) continue;
      for(int y = 0; x + y <= k; y ++ ){
        if(dpR[i + 1][0][y] == inf) continue;
        upd(ans, dpL[i][0][x] + dpR[i + 1][0][y]);
      }
    }
  }
  cout << ans << "\n";
  return 0;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1280 KB Output is correct
2 Correct 8 ms 4992 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 8 ms 4992 KB Output is correct
5 Correct 8 ms 4992 KB Output is correct
6 Correct 8 ms 4992 KB Output is correct
7 Correct 9 ms 4352 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1280 KB Output is correct
2 Correct 8 ms 4992 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 8 ms 4992 KB Output is correct
5 Correct 8 ms 4992 KB Output is correct
6 Correct 8 ms 4992 KB Output is correct
7 Correct 9 ms 4352 KB Output is correct
8 Correct 46 ms 57980 KB Output is correct
9 Correct 49 ms 57976 KB Output is correct
10 Correct 50 ms 57976 KB Output is correct
11 Correct 52 ms 57980 KB Output is correct
12 Correct 53 ms 57984 KB Output is correct
13 Correct 155 ms 57984 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1280 KB Output is correct
2 Correct 8 ms 4992 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 8 ms 4992 KB Output is correct
5 Correct 8 ms 4992 KB Output is correct
6 Correct 8 ms 4992 KB Output is correct
7 Correct 9 ms 4352 KB Output is correct
8 Correct 46 ms 57980 KB Output is correct
9 Correct 49 ms 57976 KB Output is correct
10 Correct 50 ms 57976 KB Output is correct
11 Correct 52 ms 57980 KB Output is correct
12 Correct 53 ms 57984 KB Output is correct
13 Correct 155 ms 57984 KB Output is correct
14 Correct 42 ms 57984 KB Output is correct
15 Correct 44 ms 57976 KB Output is correct
16 Incorrect 43 ms 58112 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1280 KB Output is correct
2 Correct 8 ms 4992 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 8 ms 4992 KB Output is correct
5 Correct 8 ms 4992 KB Output is correct
6 Correct 8 ms 4992 KB Output is correct
7 Correct 9 ms 4352 KB Output is correct
8 Correct 46 ms 57980 KB Output is correct
9 Correct 49 ms 57976 KB Output is correct
10 Correct 50 ms 57976 KB Output is correct
11 Correct 52 ms 57980 KB Output is correct
12 Correct 53 ms 57984 KB Output is correct
13 Correct 155 ms 57984 KB Output is correct
14 Correct 42 ms 57984 KB Output is correct
15 Correct 44 ms 57976 KB Output is correct
16 Incorrect 43 ms 58112 KB Output isn't correct
17 Halted 0 ms 0 KB -