제출 #244837

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
244837		NONAME	Kas (COCI17_kas)	C++14	70 / 100	2102 ms	154552 KiB

kas

#include <bits/stdc++.h>
#define dbg(x) cerr << #x << " = " << x << "\n"
#define fast_io ios_base::sync_with_stdio(0); cin.tie(0); cout.tie()
using namespace std;
using ll = long long;

const int fx = -(3e5 + 100);

int n, a[500], total;
bool mk[500][int(3e5) + 10];
map <int, int> f[500];

int rec(int p, int cur) {
    if (p == n)
        return (cur == 0) ? 0 : -3e5;

    if (mk[p][int(1e5) + cur])
        return f[p][int(1e5) + cur];

    int res = max(rec(p + 1, cur),
              max(rec(p + 1, cur - a[p]), rec(p + 1, cur + a[p]) + a[p]));

    mk[p][int(1e5) + cur] = 1;
    return f[p][int(1e5) + cur] = res;
}

int main() {
    fast_io;

    cin >> n;
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
        total += a[i];
    }

    //for (int i = 0; i < n; ++i)
    //for (int j = 0; j <= 3e5; ++j)
        //f[i][j] = fx;

    int res = rec(0, 0);
    cout << res + (total - 2 * res) << "\n";
}

• 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: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10