Submission #860747

#	Time	Username	Problem	Language	Result	Execution time	Memory
860747		Halym2007	Bigger segments (IZhO19_segments)	C++11	0 / 100	1 ms	348 KiB

segments

#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int N = 5e5 + 5;
ll o, a[N], seg[N], sum;

int main () {
	freopen("input.txt", "r", stdin);
	int n;
	cin >> n;
	for (int i = 1; i <= n; ++i) {
		cin >> a[i];
	}
	o++;
	seg[o] = a[1];
	for (int i = 2; i <= n; ++i) {
		sum = 0;
		int r = i;
		while (r <= n and sum < seg[o]) {
			sum += a[r];
			r++;	
		}
		if (sum >= seg[o]) {
			o++;
			seg[o] = sum;
			while (i <= n and sum - a[i] >= seg[o - 1] + a[i]) {
				seg[o - 1] += a[i];
				seg[o] -= a[i];
				i++;
			}
		}
		else {
			seg[o] += sum;
			break;
		}
		i = max(r - 1, i - 1);
	}
	cout << o << endl;
}

Compilation message (stderr)

segments.cpp: In function 'int main()':
segments.cpp:8:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  freopen("input.txt", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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