Submission #1122180

#	Time	Username	Problem	Language	Result	Execution time	Memory
1122180		vjudge1	Snowball (JOI21_ho_t2)	C++17	100 / 100	102 ms	15436 KiB

Main

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <ctime>
#include <cassert>
#include <complex>
#include <string>
#include <cstring>
#include <chrono>
#include <random>
#include <bitset>
#include <fstream>
#include <array>
#include <functional>
#include <stack>
#include <memory>
#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif

using namespace std;

#define int long long
#define app push_back
#define all(x) x.begin(), x.end()
#ifdef LOCAL
#define debug(...) [](auto...a){ ((cout << a << ' '), ...) << endl; }(#__VA_ARGS__, ":", __VA_ARGS__)
#define debugv(v) do { cout << #v << ": "; for (auto x : v) cout << x << ' '; cout << endl; } while(0)
#else
#define debug(...)
#define debugv(v)
#endif

int32_t main() {
    cin.tie(0);ios_base::sync_with_stdio(0);
    int n, q;
    cin >> n >> q;
    vector <int> x(n), w(q), mx(q + 1), mn(q + 1);
    for (int i = 0; i < n; ++i) {
    	cin >> x[i];
    }
    int cur = 0;
    for (int i = 0; i < q; ++i) {
    	cin >> w[i];
    	cur += w[i];
    	mx[i + 1] = max(mx[i], cur);
    	mn[i + 1] = min(mn[i], cur);
    }

    vector <int> ans(n);
    ans.front() -= mn.back();
    ans.back() += mx.back();
    for (int i = 0; i + 1 < n; ++i) {
    	int d = x[i + 1] - x[i];
    	if (mx.back() - mn.back() < d) {
    		ans[i] += mx.back();
    		ans[i + 1] -= mn.back();
    	}
    	else {
    		int l = 0, r = q;
    		while (l < r - 1) {
    			int m = (l + r) / 2;
    			if (mx[m] - mn[m] < d) {
    				l = m;
    			}
    			else {
    				r = m;
    			}
    		}
    		ans[i] += mx[l];
    		ans[i + 1] -= mn[l];
    		int os = d - mx[l] + mn[l];
    		if (w[l] > 0) {
    			ans[i] += os;
    		}
    		else {
    			ans[i + 1] += os;
    		}
    	}
    }
    for (int e : ans) {
    	cout << e << '\n';
    }
}

• Subtask 1: 33 / 33
• Subtask 2: 67 / 67