Submission #1285252

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285252		AndriaBeridze	Boxes with souvenirs (IOI15_boxes)	C++20	Compilation error	0 ms	0 KiB

boxes

#include "boxes.h"

long long delivery(int N, int K, int L, int p[]) {
    vector<pair<int, int>> v;
    for (int i = 0; i < N; i++) {
        if (p[i] > L / 2) {
            v.push_back({ L - p[i], 1 });
        } else {
            v.push_back({ p[i], 0 });
        }
    }
    
    sort(v.rbegin(), v.rend());

    vector<int> l, r;
    for (int i = 0; i < N; i++) (v[i].second ? r : l).push_back(v[i].first);
    
    vector<long long> dpl((int) l.size() + 1, 0), dpr((int) r.size() + 1, 0);
    for (int i = (int) l.size() - 1; i >= 0; i--) {
        dpl[i] = l[i] * 2;
        if (i + K < size(l)) dpl[i] += dpl[i + K];
    }

    for (int i = (int) r.size() - 1; i >= 0; i--) {
        dpr[i] = r[i] * 2;
        if (i + K < size(r)) dpr[i] += dpr[i + K]; 
    }

    // for (int x : dpr) cout << x << ' ';
    // cout << endl;

    long long ans = (long long) 1e18;
    int cl, cr; cl = cr = 0;
    for (int i = 0; i < N; i++) {
        if (i % K == 0) {
            ans = min(ans, i / K * L + dpl[cl] + dpr[cr]);
            // cout << i << ' ' << i / K << ' ' << dpl[cl] << ' ' << dpr[cr] << endl;
        }

        if (v[i].second) cr++;
        else cl++;
    }

    return ans;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:4:12: error: 'pair' was not declared in this scope
    4 |     vector<pair<int, int>> v;
      |            ^~~~
boxes.cpp:4:5: error: 'vector' was not declared in this scope
    4 |     vector<pair<int, int>> v;
      |     ^~~~~~
boxes.cpp:4:17: error: expected primary-expression before 'int'
    4 |     vector<pair<int, int>> v;
      |                 ^~~
boxes.cpp:7:13: error: 'v' was not declared in this scope
    7 |             v.push_back({ L - p[i], 1 });
      |             ^
boxes.cpp:9:13: error: 'v' was not declared in this scope
    9 |             v.push_back({ p[i], 0 });
      |             ^
boxes.cpp:13:10: error: 'v' was not declared in this scope
   13 |     sort(v.rbegin(), v.rend());
      |          ^
boxes.cpp:13:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   13 |     sort(v.rbegin(), v.rend());
      |     ^~~~
      |     short
boxes.cpp:15:12: error: expected primary-expression before 'int'
   15 |     vector<int> l, r;
      |            ^~~
boxes.cpp:16:48: error: 'r' was not declared in this scope
   16 |     for (int i = 0; i < N; i++) (v[i].second ? r : l).push_back(v[i].first);
      |                                                ^
boxes.cpp:16:52: error: 'l' was not declared in this scope
   16 |     for (int i = 0; i < N; i++) (v[i].second ? r : l).push_back(v[i].first);
      |                                                    ^
boxes.cpp:18:12: error: expected primary-expression before 'long'
   18 |     vector<long long> dpl((int) l.size() + 1, 0), dpr((int) r.size() + 1, 0);
      |            ^~~~
boxes.cpp:19:24: error: 'l' was not declared in this scope
   19 |     for (int i = (int) l.size() - 1; i >= 0; i--) {
      |                        ^
boxes.cpp:20:9: error: 'dpl' was not declared in this scope
   20 |         dpl[i] = l[i] * 2;
      |         ^~~
boxes.cpp:21:21: error: 'size' was not declared in this scope
   21 |         if (i + K < size(l)) dpl[i] += dpl[i + K];
      |                     ^~~~
boxes.cpp:24:24: error: 'r' was not declared in this scope
   24 |     for (int i = (int) r.size() - 1; i >= 0; i--) {
      |                        ^
boxes.cpp:25:9: error: 'dpr' was not declared in this scope
   25 |         dpr[i] = r[i] * 2;
      |         ^~~
boxes.cpp:26:21: error: 'size' was not declared in this scope
   26 |         if (i + K < size(r)) dpr[i] += dpr[i + K];
      |                     ^~~~
boxes.cpp:36:40: error: 'dpl' was not declared in this scope
   36 |             ans = min(ans, i / K * L + dpl[cl] + dpr[cr]);
      |                                        ^~~
boxes.cpp:36:50: error: 'dpr' was not declared in this scope
   36 |             ans = min(ans, i / K * L + dpl[cl] + dpr[cr]);
      |                                                  ^~~
boxes.cpp:36:19: error: 'min' was not declared in this scope
   36 |             ans = min(ans, i / K * L + dpl[cl] + dpr[cr]);
      |                   ^~~