oj.uz

답안 #506226

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
506226 2022-01-11T22:51:18 Z colossal_pepe 운세 보기 2 (JOI14_fortune_telling2) C++17
4 / 100
 3000 ms 716 KB 
#include <algorithm>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <iostream>
#include <vector>
#include <cstring>
using namespace std;
using namespace __gnu_pbds;

#define pow2(p) (1 << (p))

typedef tree<pair<int, int>, null_type, less<pair<int, int>>, rb_tree_tag,
             tree_order_statistics_node_update> ordered_set;

int n, k;
vector<int> a, b, t, flips;

void makePancakes() {
    /*vector<int> t_sorted = t;
    sort(t_sorted.begin(), t_sorted.end());
    for (int i = 0; i < n; i++) {
        flips[i] += t_sorted.end() -
                    lower_bound(t_sorted.begin(), t_sorted.end(), max(a[i], b[i]));
    }*/
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < k; j++) {
            flips[i] += (t[j] >= max(a[i], b[i]));
        }
    }
}

void adjustFlips() {
    /*vector<pair<int, int>> tp(k);
    for (int i = 0; i < k; i++) {
        tp[i].first = t[i];
        tp[i].second = i;
    }
    sort(tp.begin(), tp.end());
    int st[k][20];
    memset(st, 0, sizeof(st));
    for (int i = 0; i < k; i++) {
        st[i][0] = tp[i].second;
    }
    for (int j = 1; j < 20; j++) {
        for (int i = 0; i + pow2(j) - 1 < k; i++) {
            st[i][j] = max(st[i][j - 1], st[i + pow2(j - 1)][j]);
        }
    }
    int log2[200005];
    log2[1] = 0;
    for (int i = 2; i < 200005; i++) {
        log2[i] = log2[i / 2] + 1;
    }
    vector<pair<int, int>> p(n);
    for (int i = 0; i < n; i++) {
        p[i].second = i;
        /*int l =
            lower_bound(tp.begin(), tp.end(), make_pair(min(a[i], b[i]), -1)) - tp.begin();
        int r =
            lower_bound(tp.begin(), tp.end(), make_pair(max(a[i], b[i]), -1)) - tp.begin();
        if (l == r) {
            p[i].first = -1;
            continue;
        }
        flips[i] += (b[i] > a[i]);
        int len = r - l, j = log2[r - l];
        p[i].first = max(st[l][j], st[l + len - pow2(j)][j]);
        p[i].first = -1;
        for (int j = 0; j < k; j++) {
            if (min(a[i], b[i]) <= t[j] and t[j] < max(a[i], b[i])) p[i].first = j;
        }
    }
    sort(p.begin(), p.end());
    /*int ti = 0, pi = 0;
    ordered_set os;
    while (ti < k) {
        os.insert({t[ti], ti});
        while (pi < n and p[pi].first == ti) {
            flips[p[pi].second] -= os.size() - os.order_of_key({max(a[p[pi].second], b[p[pi].second]), -1});
            pi++;
        }
        ti++;
    }*/
    for (int i = 0; i < n; i++) {
        int p = -1;
        for (int j = 0; j < k; j++) {
            if (min(a[i], b[i]) <= t[j] and t[j] < max(a[i], b[i])) p = j;
        }
        if (p != -1) flips[i] += (b[i] > a[i]);
        for (int j = 0; j < p; j++) {
            if (max(a[i], b[i]) <= t[j]) flips[i]--;
        }
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> k;
    a.resize(n), b.resize(n), flips.resize(n);
    t.resize(k);
    for (int i = 0; i < n; i++) {
        cin >> a[i] >> b[i];
    }
    for (int i = 0; i < k; i++) {
        cin >> t[i];
    }
    makePancakes();
    adjustFlips();
    long long ans = 0;
    for (int i = 0; i < n; i++) {
        if (flips[i] % 2) ans += b[i];
        else ans += a[i];
    }
    cout << ans << endl;
    return 0;
}

Compilation message

fortune_telling2.cpp:57:9: warning: "/*" within comment [-Wcomment]
   57 |         /*int l =
      |          
fortune_telling2.cpp:74:5: warning: "/*" within comment [-Wcomment]
   74 |     /*int ti = 0, pi = 0;
      |

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 4 ms 204 KB Output is correct
3 Correct 7 ms 324 KB Output is correct
4 Correct 7 ms 328 KB Output is correct
5 Correct 7 ms 204 KB Output is correct
6 Correct 7 ms 204 KB Output is correct
7 Correct 6 ms 204 KB Output is correct
8 Correct 5 ms 204 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 6 ms 328 KB Output is correct
11 Correct 5 ms 204 KB Output is correct
12 Correct 5 ms 204 KB Output is correct
13 Correct 5 ms 204 KB Output is correct

Subtask #2
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 4 ms 204 KB Output is correct
3 Correct 7 ms 324 KB Output is correct
4 Correct 7 ms 328 KB Output is correct
5 Correct 7 ms 204 KB Output is correct
6 Correct 7 ms 204 KB Output is correct
7 Correct 6 ms 204 KB Output is correct
8 Correct 5 ms 204 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 6 ms 328 KB Output is correct
11 Correct 5 ms 204 KB Output is correct
12 Correct 5 ms 204 KB Output is correct
13 Correct 5 ms 204 KB Output is correct
14 Correct 710 ms 460 KB Output is correct
15 Correct 2860 ms 612 KB Output is correct
16 Execution timed out 3077 ms 716 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 4 ms 204 KB Output is correct
3 Correct 7 ms 324 KB Output is correct
4 Correct 7 ms 328 KB Output is correct
5 Correct 7 ms 204 KB Output is correct
6 Correct 7 ms 204 KB Output is correct
7 Correct 6 ms 204 KB Output is correct
8 Correct 5 ms 204 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 6 ms 328 KB Output is correct
11 Correct 5 ms 204 KB Output is correct
12 Correct 5 ms 204 KB Output is correct
13 Correct 5 ms 204 KB Output is correct
14 Correct 710 ms 460 KB Output is correct
15 Correct 2860 ms 612 KB Output is correct
16 Execution timed out 3077 ms 716 KB Time limit exceeded
17 Halted 0 ms 0 KB -