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Submission #222729

# Submission time Handle Problem Language Result Execution time Memory
222729 2020-04-13T22:08:35 Z kingfran1907 Drvca (COCI19_drvca) C++14
110 / 110
 109 ms 6900 KB 
#include <bits/stdc++.h>

using namespace std;
const int maxn = 1e5+10;

int n;
int niz[maxn];
vector<int> a;
multiset<int> b;
map<int, int> m;

void print() {
    printf("%d\n", a.size());
    for (int i = 0; i < a.size(); i++)
        printf("%d ", a[i]);

    printf("\n%d\n", b.size());
    for (auto iter = b.begin(); iter != b.end(); iter++)
        printf("%d ", *iter);
    printf("\n");
}

void print_deb() {
    printf("a: ");
    for (int i = 0; i < a.size(); i++)
        printf("%d ", a[i]);
    printf("\nb: ");
    for (auto iter = b.begin(); iter != b.end(); iter++)
        printf("%d ", *iter);

    printf("\nm: ");
    for (auto iter = m.begin(); iter != m.end(); iter++)
        printf("(%d, %d) ", iter->first, iter->second);
    printf("\n\n");
}

void check(int x, int y) {
    a.clear();
    b.clear();
    m.clear();

    int dif = niz[y] - niz[x];
    a.push_back(niz[x]);
    a.push_back(niz[y]);

    int last = -1;
    for (int i = 0; i < n; i++) {
        if (i == x || i == y) continue;
        if (niz[i] == a.back() + dif) a.push_back(niz[i]);
        else {
            b.insert(niz[i]);
            if (last != -1) m[niz[i] - last]++;
            last = niz[i];
        }
    }

    if (m.size() == 1) {
        print();
        exit(0);
    }
    //print_deb();

    while (!a.empty()) {
        int tren = a.back();
        int pref, nex;
        auto iter = b.lower_bound(tren);
        if (iter == b.begin()) pref = -1;
        else pref = *(--iter), iter++;

        if (iter == b.end()) nex = -1;
        else nex = *iter;

        if (pref != -1) m[tren - pref]++;
        if (nex != -1) m[nex - tren]++;

        if (pref != -1 && nex != -1) {
            //printf("retard: %d %d -> %d\n", nex, pref, nex - pref);
            m[nex - pref]--;
            if (m[nex - pref] == 0) m.erase(nex - pref);
        }
        a.pop_back();
        b.insert(tren);

        //printf("prev, nex: %d, %d\n", pref, nex);
        //print_deb();

        if (m.size() == 1) {
            print();
            exit(0);
        }
    }
}

int main() {
    scanf("%d", &n);
    for (int i = 0; i < n; i++)
        scanf("%d", niz+i);
    sort(niz, niz+n);

    if (n < 5) {
        printf("%d\n", n / 2);
        for (int i = 0; i < n / 2; i++)
            printf("%d ", niz[i]);

        printf("\n%d\n", n - n / 2);
        for (int i = 0; i < n - n / 2; i++)
            printf("%d ", niz[n / 2 + i]);
        printf("\n");
        return 0;
    }
    check(0, 1);
    check(0, 2);
    check(1, 2);
    printf("-1\n");
    return 0;
}

Compilation message

drvca.cpp: In function 'void print()':
drvca.cpp:13:28: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("%d\n", a.size());
                    ~~~~~~~~^
drvca.cpp:14:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < a.size(); i++)
                     ~~^~~~~~~~~~
drvca.cpp:17:30: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::multiset<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("\n%d\n", b.size());
                      ~~~~~~~~^
drvca.cpp: In function 'void print_deb()':
drvca.cpp:25:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < a.size(); i++)
                     ~~^~~~~~~~~~
drvca.cpp: In function 'int main()':
drvca.cpp:95:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
drvca.cpp:97:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", niz+i);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 256 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 6 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 256 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 5236 KB Output is correct
2 Correct 52 ms 5236 KB Output is correct
3 Correct 53 ms 5236 KB Output is correct
4 Correct 52 ms 5364 KB Output is correct
5 Correct 51 ms 5236 KB Output is correct
6 Correct 54 ms 5236 KB Output is correct
7 Correct 52 ms 5236 KB Output is correct
8 Correct 52 ms 5236 KB Output is correct
9 Correct 49 ms 4596 KB Output is correct
10 Correct 51 ms 5236 KB Output is correct
11 Correct 32 ms 3184 KB Output is correct
12 Correct 5 ms 256 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 6 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 256 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 52 ms 5236 KB Output is correct
32 Correct 52 ms 5236 KB Output is correct
33 Correct 53 ms 5236 KB Output is correct
34 Correct 52 ms 5364 KB Output is correct
35 Correct 51 ms 5236 KB Output is correct
36 Correct 54 ms 5236 KB Output is correct
37 Correct 52 ms 5236 KB Output is correct
38 Correct 52 ms 5236 KB Output is correct
39 Correct 49 ms 4596 KB Output is correct
40 Correct 51 ms 5236 KB Output is correct
41 Correct 32 ms 3184 KB Output is correct
42 Correct 5 ms 256 KB Output is correct
43 Correct 49 ms 4884 KB Output is correct
44 Correct 109 ms 6900 KB Output is correct
45 Correct 53 ms 5796 KB Output is correct
46 Correct 50 ms 4852 KB Output is correct
47 Correct 99 ms 6644 KB Output is correct
48 Correct 55 ms 5752 KB Output is correct
49 Correct 51 ms 4596 KB Output is correct
50 Correct 89 ms 6648 KB Output is correct
51 Correct 58 ms 5876 KB Output is correct
52 Correct 42 ms 3184 KB Output is correct
53 Correct 94 ms 6644 KB Output is correct
54 Correct 60 ms 5748 KB Output is correct
55 Correct 46 ms 4208 KB Output is correct
56 Correct 35 ms 3824 KB Output is correct
57 Correct 31 ms 3184 KB Output is correct
58 Correct 5 ms 256 KB Output is correct