oj.uz

답안 #1053209

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1053209 2024-08-11T09:45:26 Z dozer 사탕 분배 (IOI21_candies) C++17
0 / 100
 252 ms 21360 KB 
#include "candies.h"
#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n"
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define pb push_back
#define pii pair<int, int>
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define st first
#define nd second
#define ll long long
#define LL node * 2
#define RR node * 2 + 1
#define N 300005
#define LOGN 20

const int modulo = 1e9 + 7;
const ll INF = 2e18 + 7;


int tree[4 * N], lazy[4 * N], lazy_set[4 * N];
int arr[N];


void push(int node, int l, int r){
    tree[node] += lazy[node];
    if (lazy_set[node] != -1){
        if (l == r){
            if (lazy_set[node] == 1) tree[node] = arr[l];
            else if (lazy_set[node] == 0) tree[node] = 0;
        }
        else{
            lazy_set[LL] = lazy_set[node];
            lazy_set[RR] = lazy_set[node];
        }
    }

    if (l != r){
        lazy[LL] += lazy[node];
        lazy[RR] += lazy[node];
    }
    lazy[node] = 0;
    lazy_set[node] = -1;
}

void build(int node, int l, int r){
    tree[node] = 0;
    lazy[node] = 0;
    lazy_set[node] = -1;
    if (l == r) return;
    int mid = (l + r) / 2;
    build(LL,l, mid);
    build(RR, mid + 1, r);
}

void update1(int node, int l, int r, int sl, int sr, int val){
    push(node, l, r);
    if (l > sr || r < sl) return;
    if (l >= sl && r <= sr){
        lazy[node] += val;
        push(node, l , r);
        return;
    }

    int mid = (l + r) / 2;
    update1(LL, l, mid, sl, sr, val);
    update1(RR, mid + 1, r, sl, sr, val);
}

void update2(int node, int l, int r, int sl, int sr, int val){
    push(node, l, r);
    if (l > sr || r < sl) return;
    if (l >= sl && r <= sr){
        lazy_set[node] = val;
        push(node, l, r);
        return;
    }
    int mid = (l + r) / 2;
    update2(LL, l, mid, sl, sr, val);
    update2(RR, mid + 1, r, sl, sr, val);   
}



int query(int node, int l, int r, int sl){
    push(node, l, r);
    if (l > r || l > sl || r < sl) return 0;
    if (l == r) {
        return tree[node];
    }
    int mid = (l + r) / 2;
    if (sl <= mid) return query(LL, l, mid, sl);
    return query(RR, mid + 1, r, sl);
}


vector<int> distribute_candies(vector<int> c, vector<int> l, vector<int> r, vector<int> v) {
    int n = c.size();
    vector<pii> vv;
    for (int i = 0; i < n; i++) vv.pb({c[i], i});
    sort(vv.begin(), vv.end());
    for (int i = 0; i < n; i++)
        arr[i] = vv[i].st;

    build(1, 0, n - 1);
    int m = l.size();
    for (int i = 0; i < m; i++){
        int val = v[i];
        if (val > 0){
            int pos = 0;
            for (int j = LOGN; j >= 0; j--){
                int tmp = pos + (1<<j);
                if (tmp >= n) continue;
                int gh = query(1, 0, n - 1, tmp);
                if (gh + val >= arr[tmp]) pos = tmp;
            }
            if (query(1, 0, n - 1, pos) + val >= arr[pos]) pos++;
            update2(1, 0, n - 1, 0, pos - 1, 1);
            update1(1, 0, n - 1, pos, n - 1, val);
        }

        else{
            int pos = 0;
            for (int j = LOGN; j >= 0; j--){
                int tmp = pos + (1<<j);
                if (tmp >= n) continue;
                int gh = query(1, 0, n - 1, tmp);
                if (gh + val <= 0) pos = tmp;
            }
            if (query(1, 0, n - 1, pos) + val <= 0) pos++;
            update2(1, 0, n - 1, 0, pos - 1, 0);
            update1(1, 0, n - 1, pos, n - 1, val);
        }
/*
        for (int j = 0; j < n; j++) cout<<query(1, 0, n - 1, j)<<sp;
        cout<<endl;*/
    }
    vector<int> s(n);
    for (int i = 0; i < n; i++){
        s[vv[i].nd] = query(1, 0, n - 1, i);
    }
    return s;
}
/*

int main() {
    fileio();
    int n;
    assert(1 == scanf("%d", &n));
    std::vector<int> c(n);
    for(int i = 0; i < n; ++i) {
        assert(scanf("%d", &c[i]) == 1);
    }

    int q;
    assert(1 == scanf("%d", &q));
    std::vector<int> l(q), r(q), v(q);
    for(int i = 0; i < q; ++i) {
        assert(scanf("%d %d %d", &l[i], &r[i], &v[i]) == 3);
    }

    std::vector<int> ans = distribute_candies(c, l, r, v);

    for(int i = 0; i < n; ++i) {
        if (i > 0) {
            printf(" ");
        }
        printf("%d", ans[i]);
    }
    printf("\n");
    fclose(stdout);
    return 0;
}
*/

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Incorrect 1 ms 6492 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 252 ms 21360 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 6492 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6744 KB Output is correct
2 Incorrect 1 ms 6492 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Incorrect 1 ms 6492 KB Output isn't correct
3 Halted 0 ms 0 KB -