Submission #384299

#	Time	Username	Problem	Language	Result	Execution time	Memory
384299		vanic	Bigger segments (IZhO19_segments)	C++14	0 / 100	2 ms	384 KiB

segments

#include <iostream>
#include <cmath>
#include <algorithm>
#include <vector>

using namespace std;

typedef long long ll;
const int maxn=5e5+5;

vector < int > ind;
vector < ll > val;
ll a[maxn];

void siftaj(){
	int i=val.size()-2;
	bool p=1;
	while(p && i>=0){
		p=0;
		while(val[i]+a[ind[i]]<=val[i+1]-a[ind[i]]){
			p=1;
			val[i]+=a[ind[i]];
			val[i+1]-=a[ind[i]];
			ind[i]++;
		}
		i--;
	}
}

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int n;
	cin >> n;
	for(int i=0; i<n; i++){
		cin >> a[i];
	}
	ind.push_back(1);
	val.push_back(a[0]);
	ll sad=0;
	for(int i=1; i<n; i++){
		sad+=a[i];
		if(val.back()<=sad){
			val.push_back(sad);
			ind.push_back(i+1);
			siftaj();
			sad=0;
		}
	}
	cout << val.size() << '\n';
	return 0;
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27