Submission #773398

#	Time	Username	Problem	Language	Result	Execution time	Memory
773398		SanguineChameleon	Distributing Candies (IOI21_candies)	C++17	11 / 100	99 ms	12888 KiB

candies

#include "candies.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> distribute_candies(vector<int> c, vector<int> l, vector<int> r, vector<int> v) {
	int n = c.size();
	int q = l.size();
	vector<int> s(n);
	if (n <= 2000 && q <= 2000) {
		for (int i = 0; i < q; i++) {
			for (int j = l[i]; j <= r[i]; j++) {
				s[j] += v[i];
				s[j] = max(s[j], 0);
				s[j] = min(s[j], c[j]);
			}
		}
	}
	else {
		vector<long long> pref(n);
		for (int i = 0; i < q; i++) {
			pref[l[i]] += v[i];
			if (r[i] + 1 < n) {
				pref[r[i] + 1] -= v[i];
			}
		}
		for (int i = 1; i < n; i++) {
			pref[i] += pref[i - 1];
		}
		for (int i = 0; i < n; i++) {
			s[i] = min(max(pref[i], 0LL), (long long)c[i]);
		}
	}
	return s;
}

• Subtask 1: 3 / 3
• Subtask 2: 8 / 8
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 33