Submission #242541

#	Time	Username	Problem	Language	Result	Execution time	Memory
242541		kartel	Nizin (COCI16_nizin)	C++14	100 / 100	72 ms	8184 KiB

nizin

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#define F first
#define S second
#define pb push_back
#define N +1000500
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e9)
#define el '\n'
#define pii pair <int, int>
#define err ld(1e-9)
#define last(x) x.back()
#define all(x) (x).begin(), (x).end()
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;

ll a[N], i, l, r, ans, n;

int main()
{
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

//    in("D:/cpp/2/output.txt");
//    out("output.txt");

    cin >> n;
    for (i = 1; i <= n; i++) cin >> a[i];

    l = 1;
    r = n;

    while (l < r)
    {
        if (a[l] == a[r]) {l++; r--;}
        else if (a[l] < a[r]) {a[l + 1] += a[l]; l++; ans++;}
        else {a[r - 1] += a[r]; r--; ans++;}
    }

    cout << ans;
}

//
//00000
//00110
//00111
//00011
//00000

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10