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Submission #594975

# Submission time Handle Problem Language Result Execution time Memory
594975 2022-07-13T08:17:17 Z piOOE Foehn Phenomena (JOI17_foehn_phenomena) C++17
100 / 100
 192 ms 13124 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

template<typename T>
struct Fenwick {
    vector<T> t;
    int sz;

    Fenwick() = default;
    Fenwick(int n) {
        init(n);
    }

    void init(int n) {
        t.assign(n, 0);
        sz = n;
    }

    void modify(int i, T v) {
        for (; i < sz; i |= (i + 1)) {
            t[i] += v;
        }
    }

    T get(int i) {
        T ans = 0;
        for (; i > -1; i = ((i + 1) & i) - 1) {
            ans += t[i];
        }
        return ans;
    }

    //[l, r)
    T get(int l, int r) {
        return get(r - 1) - get(l - 1);
    }
    //[l, r)
    void modify(int l, int r, T v) {
        modify(l, v);
        modify(r, -v);
    }

};

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, q, s, t;
    cin >> n >> q >> s >> t;
    vector<ll> a(n + 1);
    Fenwick<ll> fn(n + 1);
    for (int i = 0; i <= n; ++i) {
        cin >> a[i];
        fn.modify(i, i + 1, a[i]);
    }
    auto upd = [&](int i) {
        if (i > n) return 0ll;
        a[i] = fn.get(i), a[i - 1] = fn.get(i - 1);
        return (a[i] > a[i - 1] ? -s : t) * (ll)abs(a[i] - a[i - 1]);
    };
    ll ans = 0;
    for (int i = 1; i <= n; ++i) {
        ans += upd(i);
    }
    while (q--) {
        int l, r, x;
        cin >> l >> r >> x;
        ans -= upd(l);
        ans -= upd(r + 1);
        fn.modify(l, r + 1, x);
        ans += upd(l);
        ans += upd(r + 1);
        cout << ans << '\n';
    }
    return 0;
}

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 304 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 4888 KB Output is correct
2 Correct 140 ms 5436 KB Output is correct
3 Correct 155 ms 6184 KB Output is correct
4 Correct 128 ms 5204 KB Output is correct
5 Correct 145 ms 12032 KB Output is correct
6 Correct 95 ms 11084 KB Output is correct
7 Correct 96 ms 11020 KB Output is correct
8 Correct 134 ms 11764 KB Output is correct
9 Correct 160 ms 12112 KB Output is correct
10 Correct 125 ms 10820 KB Output is correct
11 Correct 102 ms 10948 KB Output is correct
12 Correct 124 ms 11632 KB Output is correct
13 Correct 98 ms 11880 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 304 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 133 ms 4888 KB Output is correct
23 Correct 140 ms 5436 KB Output is correct
24 Correct 155 ms 6184 KB Output is correct
25 Correct 128 ms 5204 KB Output is correct
26 Correct 145 ms 12032 KB Output is correct
27 Correct 95 ms 11084 KB Output is correct
28 Correct 96 ms 11020 KB Output is correct
29 Correct 134 ms 11764 KB Output is correct
30 Correct 160 ms 12112 KB Output is correct
31 Correct 125 ms 10820 KB Output is correct
32 Correct 102 ms 10948 KB Output is correct
33 Correct 124 ms 11632 KB Output is correct
34 Correct 98 ms 11880 KB Output is correct
35 Correct 144 ms 10368 KB Output is correct
36 Correct 174 ms 11768 KB Output is correct
37 Correct 155 ms 12620 KB Output is correct
38 Correct 154 ms 12480 KB Output is correct
39 Correct 137 ms 12424 KB Output is correct
40 Correct 145 ms 12364 KB Output is correct
41 Correct 138 ms 12264 KB Output is correct
42 Correct 156 ms 12364 KB Output is correct
43 Correct 141 ms 11636 KB Output is correct
44 Correct 192 ms 11940 KB Output is correct
45 Correct 140 ms 12000 KB Output is correct
46 Correct 146 ms 13124 KB Output is correct
47 Correct 94 ms 11648 KB Output is correct
48 Correct 105 ms 11632 KB Output is correct
49 Correct 186 ms 10732 KB Output is correct
50 Correct 100 ms 11520 KB Output is correct
51 Correct 100 ms 11892 KB Output is correct
52 Correct 102 ms 11764 KB Output is correct