Submission #829099

#TimeUsernameProblemLanguageResultExecution timeMemory
829099ajayNizin (COCI16_nizin)C++14
100 / 100
52 ms10192 KiB

/* Ajay Jadhav */

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <deque>
#include <vector>
#include <cstdlib>
#include <iomanip>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include <stack>
#include <ctime>
#include <string.h>
#include <climits>
#include <cstring>
using namespace std;

#define ll long long
#define pb push_back
#define pii pair<int, int>
#define vi vector<int>
#define vvi vector<vi>
#define vii vector<pii>
#define mi map<int, int>
#define mii map<pii, int>
#define all(a) (a).begin(), (a).end()
#define x first
#define y second
#define sz(x) (int)x.size()
#define hell 1000000007
#define rep(i, a, b) for (int i = a; i < b; i++)
#define endl '\n'

void solve()
{
    int n;
    cin >> n;
    vector<ll> a(n);
    rep(i, 0, n)
    {
        cin >> a[i];
    }

    int l = 0, r = n - 1, ans = 0;
    while (l < r)
    {
        if (a[l] < a[r])
        {
            ans++;
            if (l + 1 <= r)
            {
                a[l + 1] += a[l];
            }
            l++;
        }
        else if (a[l] > a[r])
        {
            ans++;
            if (r - 1 >= l)
            {
                a[r - 1] += a[r];
            }
            r--;
        }
        else
        {
            l++;
            r--;
        }
    }
    cout << ans << endl;
}

signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    // cin>>t;
    while (t--)
    {
        solve();
    }
    return 0;
}
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