Submission #378858

#	Time	Username	Problem	Language	Result	Execution time	Memory
378858		Mounir	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	100 / 100	89 ms	5740 KiB

Main

#include <bits/stdc++.h>
#define chmin(x, v) x = min(x, v)
#define chmax(x, v) x = max(x, v)
#define pb push_back
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define int long long
using namespace std;

signed main(){	
	int nVals; cin >> nVals;
	vector<int> vals(nVals), gauche(nVals), droite(nVals);
	for (int& val : vals)
		cin >> val;
	gauche[0] = 0; droite[nVals - 1] = 0;
	for (int ind = 1; ind < nVals; ++ind)
		gauche[ind] = gauche[ind - 1] + max(0ll, vals[ind - 1] - vals[ind] + 1);
	for (int ind = nVals - 2; ind >= 0; --ind)
		droite[ind] = droite[ind + 1] + max(0ll, vals[ind + 1] - vals[ind] + 1);
/*
	for (int ind = 0; ind < nVals; ++ind) cout << gauche[ind] << " ";
	cout << endl;
	for (int ind = 0; ind < nVals; ++ind) cout << droite[ind] << " ";
	cout << endl;*/

	int mini = min(gauche[nVals - 1], droite[0]);
	for (int coupe = 0; coupe < nVals - 1; ++coupe)
		chmin(mini, max(gauche[coupe], droite[coupe + 1]) + ((vals[coupe] + gauche[coupe]) == (vals[coupe + 1] + droite[coupe + 1])));
	cout << mini << endl;
	return 0;
}

• Subtask 1: 40 / 40
• Subtask 2: 60 / 60