oj.uz

Submission #905062

# Submission time Handle Problem Language Result Execution time Memory
905062 2024-01-12T13:38:17 Z VMaksimoski008 Boxes with souvenirs (IOI15_boxes) C++14
35 / 100
 161 ms 604 KB 
#include <bits/stdc++.h>
#include "boxes.h"

#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define uniq(x) x.erase(unique(all(x)), x.end())
#define rall(x) x.rbegin(), x.rend()
//#define int long long

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;
const double eps = 1e-9;

void setIO() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
}

ll delivery(int N, int K, int L, int pos[]) {
    if(K == 1) {
        ll ans = 0;

        for(int i=0; i<N; i++)
            ans += 2 * min(pos[i], L - pos[i]);

        return ans;
    }

    if(K == N) {
        set<int> s;
        for(int i=0; i<N; i++) s.insert(pos[i]);
        vector<int> p(all(s));
        
        ll ans = 0;
        int cnt = 0;
        int curr = 0;

        vector<bool> vis(sz(p), 0);

        while(cnt != sz(p)) {
            ll mn = 1e18;
            int pos = 0;

            for(int i=0; i<sz(p); i++) {
                if(vis[i]) continue;
                ll d = abs(p[i] - curr);
                if(L + curr - p[i] < d) d = L + curr - p[i];
                if(d < mn) {
                    mn = d;
                    pos = i;
                }
            }

            vis[pos] = 1;
            ans += mn;
            curr = p[pos];
            cnt++;
        }

        return ans + min(curr, L - curr);
    } 

    if(N <= 10) {
        vector<int> p;
        for(int i=0; i<N; i++) p.push_back(pos[i]);
        sort(all(p));

        ll ans = 1e18;

        do {
            ll res = 0;

            int curr = 0;
            for(int i=0; i<N; i++) {
                ll d = abs(p[i] - curr);
                if(L + curr - p[i] < d) d = L + curr - p[i];
                res += d;
                curr = p[i];
                if(i % K == K - 1) {
                    res += min(curr, L - curr);
                    curr = 0;
                }
            }

            res += min(curr, L - curr);
            ans = min(ans, res);
        } while(next_permutation(all(p)));

        return ans;
    }

    if(N <= 1000) {
        set<int> s;
        for(int i=0; i<N; i++) s.insert(pos[i]);
        vector<int> p(all(s));
        
        ll ans = 0;
        int cnt = 0;
        int curr = 0;

        vector<bool> vis(sz(p), 0);

        while(cnt != sz(p)) {
            ll mn = 1e18;
            int pos = 0;

            for(int i=0; i<sz(p); i++) {
                if(vis[i]) continue;
                ll d = abs(p[i] - curr);
                if(L + curr - p[i] < d) d = L + curr - p[i];
                if(d < mn) {
                    mn = d;
                    pos = i;
                }
            }

            vis[pos] = 1;
            ans += mn;
            curr = p[pos];

            if(cnt % K == K - 1) {
                ans += min(curr, L - curr);
                curr = 0;
            }

            cnt++;
        }

        return ans + min(curr, L - curr);
    }

    return 0;
}

Compilation message

boxes.cpp: In function 'll delivery(int, int, int, int*)':
boxes.cpp:54:17: warning: declaration of 'int pos' shadows a parameter [-Wshadow]
   54 |             int pos = 0;
      |                 ^~~
boxes.cpp:31:38: note: shadowed declaration is here
   31 | ll delivery(int N, int K, int L, int pos[]) {
      |                                  ~~~~^~~~~
boxes.cpp:117:17: warning: declaration of 'int pos' shadows a parameter [-Wshadow]
  117 |             int pos = 0;
      |                 ^~~
boxes.cpp:31:38: note: shadowed declaration is here
   31 | ll delivery(int N, int K, int L, int pos[]) {
      |                                  ~~~~^~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 1 ms 360 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 161 ms 604 KB Output is correct
7 Correct 161 ms 408 KB Output is correct
8 Correct 158 ms 408 KB Output is correct

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 1 ms 360 KB Output is correct
8 Correct 1 ms 356 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 161 ms 604 KB Output is correct
21 Correct 161 ms 408 KB Output is correct
22 Correct 158 ms 408 KB Output is correct
23 Correct 3 ms 348 KB Output is correct
24 Incorrect 1 ms 344 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 1 ms 360 KB Output is correct
8 Correct 1 ms 356 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 161 ms 604 KB Output is correct
21 Correct 161 ms 408 KB Output is correct
22 Correct 158 ms 408 KB Output is correct
23 Correct 3 ms 348 KB Output is correct
24 Incorrect 1 ms 344 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 1 ms 360 KB Output is correct
8 Correct 1 ms 356 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 161 ms 604 KB Output is correct
21 Correct 161 ms 408 KB Output is correct
22 Correct 158 ms 408 KB Output is correct
23 Correct 3 ms 348 KB Output is correct
24 Incorrect 1 ms 344 KB Output isn't correct
25 Halted 0 ms 0 KB -