제출 #620168

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
620168		drdilyor	사탕 분배 (IOI21_candies)	C++17	0 / 100	3099 ms	8148 KiB

candies

#include <bits/stdc++.h>
#include"candies.h"
#ifdef ONPC
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
#define sz(a) ((int)(a).size())
using namespace std;
using ll = long long;
const int INF = 1e9;
const ll INFL = 1e18;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);
template<typename T, typename U> istream& operator>>(istream& is, pair<T, U>& p) { return is >> p.first >> p.second; }
const int N = 2e5, LOGN = 17, MOD = 1e9+7;

vector<int> distribute_candies(vector<int> c, vector<int> l, vector<int> r, vector<int> v) {
    int n = sz(c), q = sz(l);

    vector<int> res(n), real(n + 1);
    for (int i = 0; i < q; i++) {
        real[l[i]] += v[i];
        real[r[i]+1] -= v[i];
    }
    for (int i = 1; i < n; i++)
        real[i] += real[i-1];

    for (int i = 0; i < n; i++) {

        int cur = real[i], low = cur, high = cur;
        for (int j = q-1; j >= 0; j--) {
            if (!(l[j] <= i && i <= r[j])) continue;
            cur -= v[j];
            if (cur < low) {
                low = cur;
                if (high - low >= c[i]) {
                    res[i] = c[i] - (high - real[i]);
                    break;
                }
            } else if (cur > high) {
                high = cur;
                if (high - low >= c[i]) {
                    res[i] = real[i] - low;
                    break;
                }
            }
        }
        if (high - low < c[i]) {
            res[i] = real[i];
        }
    }
    return res;
}
/*
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*/

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