oj.uz

Submission #37833

# Submission time Handle Problem Language Result Execution time Memory
37833 2017-12-28T08:40:22 Z Talant Bank (IZhO14_bank) C++14
19 / 100
 63 ms 4640 KB 
#include <bits/stdc++.h>

#define fr first
#define sc second
#define OK puts("OK");
#define pb push_back
#define mk make_pair

using namespace std;

typedef long long ll;

const ll inf = (ll)1e18 + 7;
const ll N = (ll)1e6 + 7;

int n,m;
int a[21],b[21];
int dp[21][1 << 20];
int t[1 << 20],sum1;
vector <int> vec[21];
int p[N];

int main () {
        cin >> n >> m;

        for (int i = 1; i <= n; i ++) {
                cin >> a[i];
                p[i] = p[i - 1] + a[i];
        }

        for (int i = 0; i < m; i ++) {
                cin >> b[i];
                sum1 += b[i];
        }

        for (int i = 0; i < (1 << m); i ++) {
                int sum = 0;
                for (int j = 0; j < m; j ++)
                        if (i & (1 << j))
                                sum += b[j];
                t[i] = sum;
        }

        dp[1][0] = 1;
        vec[1].pb(0);

        if (p[n] > sum1) {
                cout << "NO";
                return 0;
        }
        for (int i = 1; i <= n; i ++) {
                for (int j = 0; j < (1 << m); j ++) {
                        if (t[j] == a[i]) {
                                if (n == 1) {
                                        cout << "YES";
                                        return 0;
                                }

                                for (int k = 0; k < vec[i].size(); k ++) {
                                        if (!(vec[i][k] & j)) {
                                                int q = sum1 - t[(vec[i][k] | j)];
                                                if (q >= p[n] - p[i]) {
                                                        vec[i + 1].pb(vec[i][k] | j);
                                                        dp[i + 1][vec[i][k] | j] = 1;
                                                }
                                        }
                                        else
                                                break;
                                }
                        }
                }
        }

        if (n == 1) {
                cout << "NO" << endl;
                return 0;
        }
        for (int i = 0; i < (1 << m); i ++) {
                if (dp[n + 1][i] == 1) {
                        cout << "YES" << endl;
                        return 0;
                }
        }

        cout << "NO" << endl;
        return 0;

}

Compilation message

bank.cpp: In function 'int main()':
bank.cpp:59:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                                 for (int k = 0; k < vec[i].size(); k ++) {
                                                 ~~^~~~~~~~~~~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 376 KB Output is correct
2 Correct 2 ms 500 KB Output is correct
3 Correct 2 ms 500 KB Output is correct
4 Correct 3 ms 584 KB Output is correct
5 Correct 63 ms 4564 KB Output is correct
6 Correct 2 ms 4564 KB Output is correct
7 Correct 2 ms 4564 KB Output is correct
8 Correct 61 ms 4640 KB Output is correct
9 Correct 62 ms 4640 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4640 KB Output is correct
2 Correct 2 ms 4640 KB Output is correct
3 Correct 2 ms 4640 KB Output is correct
4 Correct 2 ms 4640 KB Output is correct
5 Correct 2 ms 4640 KB Output is correct
6 Incorrect 2 ms 4640 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 4640 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 376 KB Output is correct
2 Correct 2 ms 500 KB Output is correct
3 Correct 2 ms 500 KB Output is correct
4 Correct 3 ms 584 KB Output is correct
5 Correct 63 ms 4564 KB Output is correct
6 Correct 2 ms 4564 KB Output is correct
7 Correct 2 ms 4564 KB Output is correct
8 Correct 61 ms 4640 KB Output is correct
9 Correct 62 ms 4640 KB Output is correct
10 Correct 2 ms 4640 KB Output is correct
11 Correct 2 ms 4640 KB Output is correct
12 Correct 2 ms 4640 KB Output is correct
13 Correct 2 ms 4640 KB Output is correct
14 Correct 2 ms 4640 KB Output is correct
15 Incorrect 2 ms 4640 KB Output isn't correct
16 Halted 0 ms 0 KB -