Submission #910186

#	Time	Username	Problem	Language	Result	Execution time	Memory
910186		LOLOLO	Sterilizing Spray (JOI15_sterilizing)	C++17	80 / 100	5050 ms	7884 KiB

sterilizing

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())

const int N = 1e5 + 100;

ll f[N];
void upd(int i, ll x) {
    for (; i < N; i += i & (-i))
        f[i] += x;
}

ll get(int i) {
    ll s = 0;
    for (; i; i -= i & (-i))
        s += f[i];

    return s;
}

ll c[N];
ll solve() {
    int n, q, k;
    cin >> n >> q >> k;

    for (int i = 1; i <= n; i++) {
        cin >> c[i];
        upd(i, c[i]);
    }

    set <int> st;
    for (int i = 1; i <= n; i++)
        st.insert(i);

    while (q--) {
        int s, l, r;
        cin >> s >> l >> r;

        if (s == 1) {
            upd(l, r - c[l]);
            if (c[l])
                st.erase(l);

            c[l] = r;
            if (r) {
                st.insert(l);
            }
        }

        if (s == 2) {
            vector <int> v;
            auto it = st.lower_bound(l);
            while (it != st.end()) {
                if (*it > r)
                    break;

                v.pb(*it);
                it = next(it);
            }

            for (auto x : v) {
                upd(x, (c[x] / k) - c[x]);
                c[x] /= k;
                if (c[x] == 0)
                    st.erase(x);
            }
        }

        if (s == 3) {
            cout << get(r) - get(l - 1) << '\n';
        }
    }

    return 0;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int t = 1;
    //cin >> t;

    while (t--) {
        solve();
        //cout << solve() << '\n';
    }

    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 75 / 75