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Submission #656752

# Submission time Handle Problem Language Result Execution time Memory
656752 2022-11-08T07:19:38 Z uylulu Fortune Telling 2 (JOI14_fortune_telling2) C++14
35 / 100
 977 ms 215084 KB 
#include <bits/stdc++.h>
using namespace std;

#define ld long double
#define ll long long
#define endl "\n"

const int N = 4e5 + 100,K = 19;

int a[N + 1],b[N + 1];
int val[N + 1],lst[N + 1],cnt = 0;
int sparse[N + 1][K + 1],lg[N + 1];

bool sign[N + 1];

map<int,int> mp;
vector<int> query;

vector<pair<int,int>> seg[4*N + 1];

int bit[N + 1];

void add(int pos) {
    while(pos > 0) {
        bit[pos]++;
        pos -= pos&(-pos);
    }
}

int queryBIT(int pos) {
    int res = 0;
    for(int i = pos;i <= cnt;i += i&(-i)) {
        res += bit[i];
    }
    return res;
}

void buildSP() {
    for(int i = 2;i <= N;i++) {
        lg[i] = lg[i/2] + 1;
    }
    for(int i = 0;i <= cnt;i++) {
        sparse[i][0] = lst[i];
    }
    for(int j = 1;j <= K;j++) {
        for(int i = 0;i + (1<<j) <= N;i++) {
            sparse[i][j] = max(sparse[i][j - 1],sparse[i + (1<<(j - 1))][j - 1]);
        }
    }
}

int querySP(int l,int r) {
    int len = lg[r - l + 1];
    return max(sparse[l][len],sparse[r - (1<<len) + 1][len]);
}

signed main() {
    // freopen("in.txt","r",stdin);
    // freopen("out.txt","w",stdout);
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);

    int n,k;
    cin>>n>>k;
    for(int i = 1;i <= n;i++) {
        cin>>a[i]>>b[i];
        sign[i] = 0;
        if(a[i] > b[i]) {
            sign[i] = 1;
            swap(a[i],b[i]);
        }
        mp[a[i]] = -1;
        mp[b[i]] = -1;
    }
    for(int i = 0;i < k;i++) {
        int x;
        cin>>x;
        mp[x] = -1;
        query.push_back(x);
    }

    for(auto u : mp) {
        mp[u.first] = cnt;
        val[cnt] = u.first;
        cnt++;
    }
    for(int i = 1;i <= n;i++) {
        a[i] = mp[a[i]];
        b[i] = mp[b[i]];
    }
    for(int i = 0;i < query.size();i++) {
        query[i] = mp[query[i]];
    }
    for(int i = 0;i <= cnt;i++) {
        lst[i] = -1;
    }
    for(int i = 0;i < query.size();i++) {
        lst[query[i]] = max(lst[query[i]],i);
    }
    mp.clear();

    ll res = 0;
    buildSP();

    vector<pair<int,int>> asd;
    
    for(int i = 1;i <= n;i++) {
        if(a[i] == b[i]) {
            res += val[a[i]];
            continue;
        }
        int nw = querySP(a[i],b[i] - 1);
        asd.push_back({nw + 1,i});
    }
    
    sort(asd.begin(),asd.end());
    reverse(asd.begin(),asd.end());

    int ptr = query.size() - 1;

    for(auto u : asd) {
        while(ptr >= u.first) {
            add(query[ptr]);
            ptr--;
        }
        int w = sign[u.second];
        if(u.first > 0) {
            w = 1;
        }

        int cnt = queryBIT(b[u.second]);
        w ^= (cnt%2);

        if(w == 0) {
            res += val[a[u.second]];
        } else {
            res += val[b[u.second]];
        }
    }
    cout<<res<<endl;

    return 0;
}

Compilation message

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:90:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |     for(int i = 0;i < query.size();i++) {
      |                   ~~^~~~~~~~~~~~~~
fortune_telling2.cpp:96:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |     for(int i = 0;i < query.size();i++) {
      |                   ~~^~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 70884 KB Output is correct
2 Correct 78 ms 70852 KB Output is correct
3 Correct 83 ms 70992 KB Output is correct
4 Correct 80 ms 70972 KB Output is correct
5 Correct 89 ms 70988 KB Output is correct
6 Correct 90 ms 70984 KB Output is correct
7 Correct 84 ms 70988 KB Output is correct
8 Correct 86 ms 70988 KB Output is correct
9 Correct 81 ms 70988 KB Output is correct
10 Correct 85 ms 70872 KB Output is correct
11 Correct 93 ms 70932 KB Output is correct
12 Correct 86 ms 70932 KB Output is correct
13 Correct 87 ms 70948 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 70884 KB Output is correct
2 Correct 78 ms 70852 KB Output is correct
3 Correct 83 ms 70992 KB Output is correct
4 Correct 80 ms 70972 KB Output is correct
5 Correct 89 ms 70988 KB Output is correct
6 Correct 90 ms 70984 KB Output is correct
7 Correct 84 ms 70988 KB Output is correct
8 Correct 86 ms 70988 KB Output is correct
9 Correct 81 ms 70988 KB Output is correct
10 Correct 85 ms 70872 KB Output is correct
11 Correct 93 ms 70932 KB Output is correct
12 Correct 86 ms 70932 KB Output is correct
13 Correct 87 ms 70948 KB Output is correct
14 Correct 99 ms 72628 KB Output is correct
15 Correct 143 ms 74500 KB Output is correct
16 Correct 148 ms 76120 KB Output is correct
17 Correct 187 ms 77896 KB Output is correct
18 Correct 199 ms 78264 KB Output is correct
19 Correct 196 ms 77848 KB Output is correct
20 Correct 206 ms 77840 KB Output is correct
21 Correct 172 ms 77808 KB Output is correct
22 Correct 150 ms 75768 KB Output is correct
23 Correct 134 ms 74740 KB Output is correct
24 Correct 127 ms 73984 KB Output is correct
25 Correct 149 ms 76320 KB Output is correct
26 Correct 149 ms 75496 KB Output is correct
27 Correct 158 ms 75988 KB Output is correct
28 Correct 155 ms 75848 KB Output is correct
29 Correct 169 ms 76688 KB Output is correct

Subtask #3
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 70884 KB Output is correct
2 Correct 78 ms 70852 KB Output is correct
3 Correct 83 ms 70992 KB Output is correct
4 Correct 80 ms 70972 KB Output is correct
5 Correct 89 ms 70988 KB Output is correct
6 Correct 90 ms 70984 KB Output is correct
7 Correct 84 ms 70988 KB Output is correct
8 Correct 86 ms 70988 KB Output is correct
9 Correct 81 ms 70988 KB Output is correct
10 Correct 85 ms 70872 KB Output is correct
11 Correct 93 ms 70932 KB Output is correct
12 Correct 86 ms 70932 KB Output is correct
13 Correct 87 ms 70948 KB Output is correct
14 Correct 99 ms 72628 KB Output is correct
15 Correct 143 ms 74500 KB Output is correct
16 Correct 148 ms 76120 KB Output is correct
17 Correct 187 ms 77896 KB Output is correct
18 Correct 199 ms 78264 KB Output is correct
19 Correct 196 ms 77848 KB Output is correct
20 Correct 206 ms 77840 KB Output is correct
21 Correct 172 ms 77808 KB Output is correct
22 Correct 150 ms 75768 KB Output is correct
23 Correct 134 ms 74740 KB Output is correct
24 Correct 127 ms 73984 KB Output is correct
25 Correct 149 ms 76320 KB Output is correct
26 Correct 149 ms 75496 KB Output is correct
27 Correct 158 ms 75988 KB Output is correct
28 Correct 155 ms 75848 KB Output is correct
29 Correct 169 ms 76688 KB Output is correct
30 Correct 390 ms 84528 KB Output is correct
31 Correct 489 ms 89636 KB Output is correct
32 Correct 707 ms 95940 KB Output is correct
33 Runtime error 977 ms 215084 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -