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Submission #95304

# Submission time Handle Problem Language Result Execution time Memory
95304 2019-01-29T22:17:00 Z bogdan10bos Fortune Telling 2 (JOI14_fortune_telling2) C++14
100 / 100
 1754 ms 87588 KB 
#include <bits/stdc++.h>

using namespace std;

//#define FILE_IO

typedef pair<int, int> pii;

const int NMAX = 2e5;

pii card[NMAX + 5];
int N, M, K;
int pos[NMAX + 5], v[NMAX + 5];
int lg2[3 * NMAX + 5], rmq[20][3 * NMAX + 5];
int ordC[NMAX + 5], ordV[NMAX + 5];

class Normalizer
{
public:
    vector<int> ord;
    map<int, int> mp;

    void add(int x) { if(mp.count(x)) return; mp[x]; ord.push_back(x); }
    void pre()
    {
        sort(begin(ord), end(ord));
        for(int i = 0; i < ord.size(); i++)
            mp[ ord[i] ] = i + 1;
    }
    int get(int x) { return mp[x]; }
}nrm;

class BinaryIndexedTree
{
public:
    int aib[NMAX + 5];
    void U(int pos)
    {
        for(; pos <= M; pos += (pos & (-pos)))
            aib[pos]++;
    }
    int Q(int pos)
    {
        int ans = 0;
        for(; pos > 0; pos -= (pos & (-pos)))
            ans += aib[pos];
        return ans;
    }
}aib;

int main()
{
    #ifdef FILE_IO
    freopen("1.in", "r", stdin);
    //freopen("1.out", "w", stdout);
    #endif

    scanf("%d%d", &N, &M);
    for(int i = 1; i <= N; i++)
    {
        int x, y;
        scanf("%d%d", &x, &y);
        card[i] = {x, y};
        nrm.add(x); nrm.add(y);
    }
    for(int i = 1; i <= M; i++)
    {
        scanf("%d", &v[i]);
        nrm.add(v[i]);
    }
    nrm.pre();
    K = nrm.ord.size();
    for(int i = 1; i <= N; i++)
    {
        card[i].first = nrm.get(card[i].first);
        card[i].second = nrm.get(card[i].second);
    }
    for(int i = 1; i <= M; i++) v[i] = nrm.get(v[i]);
    for(int i = 1; i <= M; i++)
        rmq[0][ v[i] ] = i;
    for(int i = 2; i <= K; i++) lg2[i] = lg2[i >> 1] + 1;
    for(int i = 1; (1 << i) <= K; i++)
        for(int j = 1; j + (1 << i) - 1 <= K; j++)
            rmq[i][j] = max(rmq[i - 1][j], rmq[i - 1][j + (1 << (i - 1))]);

    for(int i = 1; i <= N; i++)
    {
        int st = min(card[i].first, card[i].second), dr = max(card[i].first, card[i].second) - 1;
        if(st > dr) { pos[i] = 0; continue; }
        int lg = lg2[dr - st + 1];
        pos[i] = max(rmq[lg][st], rmq[lg][dr - (1 << lg) + 1]);
    }

    for(int i = 1; i <= N; i++) ordC[i] = i;
    sort(ordC + 1, ordC + N + 1,
         [](int a, int b) { return max(card[a].first, card[a].second) > max(card[b].first, card[b].second); });
    for(int i = 1; i <= M; i++) ordV[i] = i;
    sort(ordV + 1, ordV + M + 1,
         [](int a, int b) { return v[a] > v[b]; });

    int p = 1;
    long long ans = 0LL;
    for(int i = 1; i <= N; i++)
    {
        int id = ordC[i];
        int val = max(card[id].first, card[id].second);
        while(p <= M && val <= v[ ordV[p] ])
        {
            aib.U(ordV[p]);
            p++;
        }

        int cnt = aib.Q(M) - aib.Q(pos[id]);
        int face = 0;
        if(pos[id] == 0)
        {
            if(cnt % 2 == 1)    face = card[id].second;
            else    face = card[id].first;
        }
        else
        {
            if(cnt % 2 == 1)    face = min(card[id].first, card[id].second);
            else    face = max(card[id].first, card[id].second);
        }
        face = nrm.ord[face - 1];
        ans += face;
    }

    cout << ans << '\n';

    return 0;
}

Compilation message

fortune_telling2.cpp: In member function 'void Normalizer::pre()':
fortune_telling2.cpp:27:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < ord.size(); i++)
                        ~~^~~~~~~~~~~~
fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:58:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &N, &M);
     ~~~~~^~~~~~~~~~~~~~~~
fortune_telling2.cpp:62:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &x, &y);
         ~~~~~^~~~~~~~~~~~~~~~
fortune_telling2.cpp:68:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &v[i]);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 632 KB Output is correct
3 Correct 4 ms 888 KB Output is correct
4 Correct 5 ms 888 KB Output is correct
5 Correct 4 ms 760 KB Output is correct
6 Correct 4 ms 760 KB Output is correct
7 Correct 4 ms 760 KB Output is correct
8 Correct 4 ms 888 KB Output is correct
9 Correct 4 ms 760 KB Output is correct
10 Correct 3 ms 632 KB Output is correct
11 Correct 4 ms 760 KB Output is correct
12 Correct 3 ms 632 KB Output is correct
13 Correct 4 ms 632 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 632 KB Output is correct
3 Correct 4 ms 888 KB Output is correct
4 Correct 5 ms 888 KB Output is correct
5 Correct 4 ms 760 KB Output is correct
6 Correct 4 ms 760 KB Output is correct
7 Correct 4 ms 760 KB Output is correct
8 Correct 4 ms 888 KB Output is correct
9 Correct 4 ms 760 KB Output is correct
10 Correct 3 ms 632 KB Output is correct
11 Correct 4 ms 760 KB Output is correct
12 Correct 3 ms 632 KB Output is correct
13 Correct 4 ms 632 KB Output is correct
14 Correct 33 ms 4344 KB Output is correct
15 Correct 81 ms 8348 KB Output is correct
16 Correct 123 ms 12580 KB Output is correct
17 Correct 220 ms 16752 KB Output is correct
18 Correct 208 ms 16880 KB Output is correct
19 Correct 165 ms 16840 KB Output is correct
20 Correct 157 ms 16752 KB Output is correct
21 Correct 184 ms 16820 KB Output is correct
22 Correct 108 ms 11568 KB Output is correct
23 Correct 82 ms 9124 KB Output is correct
24 Correct 72 ms 7284 KB Output is correct
25 Correct 113 ms 12912 KB Output is correct
26 Correct 104 ms 10988 KB Output is correct
27 Correct 117 ms 11888 KB Output is correct
28 Correct 118 ms 12040 KB Output is correct
29 Correct 160 ms 14316 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 632 KB Output is correct
3 Correct 4 ms 888 KB Output is correct
4 Correct 5 ms 888 KB Output is correct
5 Correct 4 ms 760 KB Output is correct
6 Correct 4 ms 760 KB Output is correct
7 Correct 4 ms 760 KB Output is correct
8 Correct 4 ms 888 KB Output is correct
9 Correct 4 ms 760 KB Output is correct
10 Correct 3 ms 632 KB Output is correct
11 Correct 4 ms 760 KB Output is correct
12 Correct 3 ms 632 KB Output is correct
13 Correct 4 ms 632 KB Output is correct
14 Correct 33 ms 4344 KB Output is correct
15 Correct 81 ms 8348 KB Output is correct
16 Correct 123 ms 12580 KB Output is correct
17 Correct 220 ms 16752 KB Output is correct
18 Correct 208 ms 16880 KB Output is correct
19 Correct 165 ms 16840 KB Output is correct
20 Correct 157 ms 16752 KB Output is correct
21 Correct 184 ms 16820 KB Output is correct
22 Correct 108 ms 11568 KB Output is correct
23 Correct 82 ms 9124 KB Output is correct
24 Correct 72 ms 7284 KB Output is correct
25 Correct 113 ms 12912 KB Output is correct
26 Correct 104 ms 10988 KB Output is correct
27 Correct 117 ms 11888 KB Output is correct
28 Correct 118 ms 12040 KB Output is correct
29 Correct 160 ms 14316 KB Output is correct
30 Correct 490 ms 31620 KB Output is correct
31 Correct 617 ms 43240 KB Output is correct
32 Correct 1075 ms 57888 KB Output is correct
33 Correct 1496 ms 87332 KB Output is correct
34 Correct 348 ms 28776 KB Output is correct
35 Correct 1747 ms 87588 KB Output is correct
36 Correct 1673 ms 87368 KB Output is correct
37 Correct 1689 ms 87316 KB Output is correct
38 Correct 1674 ms 87524 KB Output is correct
39 Correct 1754 ms 87524 KB Output is correct
40 Correct 1485 ms 87080 KB Output is correct
41 Correct 1641 ms 87580 KB Output is correct
42 Correct 1738 ms 87516 KB Output is correct
43 Correct 985 ms 85212 KB Output is correct
44 Correct 986 ms 85344 KB Output is correct
45 Correct 1004 ms 85980 KB Output is correct
46 Correct 739 ms 46532 KB Output is correct
47 Correct 585 ms 33812 KB Output is correct
48 Correct 972 ms 61328 KB Output is correct
49 Correct 971 ms 61608 KB Output is correct