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Submission #23418

# Submission time Handle Problem Language Result Execution time Memory
23418 2017-05-09T05:38:05 Z duongthoi1999 Bali Sculptures (APIO15_sculpture) C++14
0 / 100
 3 ms 33616 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=a;i<n;i++)
#define per(i,a,n) for (int i=n-1;i>=a;i--)
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define SZ(x) ((int)(x).size())
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
const int mod = (int) 1e9 + 7;
const ll inf = 1LL << 60;
const int maxn = (int) 2e3 + 5;
const ld eps = 1e-9;

int n, a, b, y[maxn], g[maxn];
ll f[maxn][maxn], s[maxn];

void solve1() {
    rep(i, 0, maxn) rep(j, 0, maxn) f[i][j] = inf;
    f[0][0] = 0;
    rep(i, 1, n + 1) {
        rep(k, 1, i + 1) {
            rep(j, 0, i) {
                f[i][k] = min(f[i][k], f[j][k - 1] | (s[i] - s[j]));
            }
        }
    }
    ll res = inf;
    rep(i, a, b + 1) res = min(res, f[n][i]);
    cout << res << '\n';
}

void solve2() {
    ll res = 0;
    per(x, 0, 4) {
        rep(i, 1, n + 1) g[i] = mod;
        rep(i, 1, n + 1) {
            rep(j, 0, i) {
                ll val = s[i] - s[j];
                if((val | res) < res + (1LL << x)) g[i] = min(g[i], g[j] + 1);
                //if(i == n) cout << "? " << val << endl;
            }
        }
        //cout << g[n] << endl;
        if(g[n] > b) res |= (1LL << x);
    }
    cout << res << '\n';
}

int main() {
    //freopen("test.txt", "r", stdin);
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> a >> b;
    rep(i, 1, n + 1) cin >> y[i], s[i] = s[i - 1] + y[i];
    if(n <= 100) solve1();
    else solve2();
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33616 KB Output is correct
2 Incorrect 3 ms 33616 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33616 KB Output is correct
2 Incorrect 0 ms 33616 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 33616 KB Output is correct
2 Incorrect 0 ms 33616 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33616 KB Output is correct
2 Incorrect 0 ms 33616 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33616 KB Output is correct
2 Incorrect 3 ms 33616 KB Output isn't correct
3 Halted 0 ms 0 KB -