제출 #957734

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
957734		Neco_arc	Sterilizing Spray (JOI15_sterilizing)	C++17	80 / 100	5047 ms	5212 KiB

sterilizing

#include <bits/stdc++.h>

#define ll long long
#define ull unsigned long long
#define all(x) x.begin(), x.end()
#define Neco "Sterilizing Spray"
#define resp(x) sort(all(x)), x.resize(unique(all(x)) - x.begin())
#define getbit(x,i) ((x >> i)&1)
#define _left id * 2, l, mid
#define _right id * 2 + 1, mid + 1, r
#define cntbit(x) __builtin_popcountll(x)
#define fi(i, a, b) for(int i = a; i <= b; i++)
#define fid(i, a, b) for(int i = a; i >= b; i--)
#define maxn (int) 1e5 + 7

using namespace std;

const ll mod = 1e9 + 7; //972663749
const ll base = 911382323;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

ll GetRandom(ll l, ll r)
{
    return uniform_int_distribution<ll> (l, r)(rng);
}

int n, q, k;

struct IT {
    struct Node {
        ll Amax, Sum;
    } st[4 * maxn];

    void update(int u, int v, int val, int id = 1, int l = 1, int r = n)
    {
        if(l > v || r < u) return;
        if(st[id].Amax <= 0 && val < 0) return;

        if(l == r) {
            st[id].Sum = val < 0 ? st[id].Sum / k : val;
            st[id].Amax = st[id].Sum;
            return;
        }

        int mid = (l + r) >> 1;
        update(u, v, val, _left), update(u, v, val, _right);

        st[id].Amax = max(st[id * 2].Amax, st[id * 2 + 1].Amax);
        st[id].Sum = st[id * 2].Sum + st[id * 2 + 1].Sum;
    }

    ll get(int u, int v, int id = 1, int l = 1, int r = n)
    {
        if(l > v || r < u) return 0;
        if(u <= l && r <= v) return st[id].Sum;

        int mid = (l + r) >> 1;
        return get(u, v, _left) + get(u, v, _right);
    }

} St;

void solve()
{

    cin >> n >> q >> k;

    int X;
    fi(i, 1, n) cin >> X, St.update(i, i, X);

    fi(i, 1, q) {
        int type, x, y;
        cin >> type >> x >> y;

        if(type == 1) St.update(x, x, y);
        if(type == 2) St.update(x, y, -1);
        if(type == 3) cout << St.get(x, y) << '\n';
    }

}


int main()
{

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    if(fopen(Neco".inp", "r")) {
        freopen(Neco".inp", "r", stdin);
        freopen(Neco".out", "w", stdout);
    }


    int nTest = 1;
//    cin >> nTest;


    while(nTest--)
    {
        solve();
    }


    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

sterilizing.cpp: In function 'int main()':
sterilizing.cpp:92:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   92 |         freopen(Neco".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sterilizing.cpp:93:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |         freopen(Neco".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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