oj.uz

답안 #114884

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
114884 2019-06-03T18:57:30 Z mrboorger 은행 (IZhO14_bank) C++14
44 / 100
 1000 ms 384 KB 
#include <bits/stdc++.h>
#include <vector>
#include <set>
#include <iostream>
//#pragma GCC optimize("Ofast")

#define ld long double
#define ll long long
#define F first
#define S second
#define pb push_back
#define mp make_pair

using namespace std;

//mt19937 gen(time(0));
const ll inf = 1e18 + 18;
vector <int> a, b;

main()
{
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
//    freopen("divide.in", "r", stdin);
//    freopen("divide.out", "w", stdout);
#endif

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, m;
    cin >> n >> m;
    if (n > m)
    {
        cout << "NO";
        return 0;
    }
    a.resize(n, 0);
    b.resize(m, 0);
    for(int i = 0; i < n; i++)
        cin >> a[i];
    for(int i = 0; i < m; i++)
        cin >> b[i];
    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
    if (n == m)
    {
        bool f = true;
        for(int i = 0; i < n; i++)
            if (a[i] != b[i]) f = false;
        if (f)
        {
            cout << "YES";
        }
        else
        {
                cout << "NO";
        }
        return 0;
    }
    if (n == m - 1)
    {
        int u = -1;
        int kk = 0;
        for(int i = 0; i < n; i++)
            for(int j = 0; j < int(b.size()); j++)
            {
                if (a[i] == a[j])
                {
                    b.erase(b.begin() + j);
                    break;
                }
                kk++;
                u = i;
            }
        if (kk == 1 && b[0] + b[1] == a[u])
        {
            cout << "YES";
        }
        else
        {
            cout << "NO";
        }
        return 0;
    }
    if (n == 1)
    {
        //O(2 ^ m * m)
        for(int i = 0; i < int(1 << m); i++)
        {
            int sum = 0;
            for(int j = 0; j < m; j++)
            {
                if ((i & (1 << j)) > 0) sum += b[j];
            }
            if (a[0] == sum)
            {
                cout << "YES";
                return 0;
            }
        }
    }
    else
    {
//         O(m! * (n + m))
        while(next_permutation(b.begin(), b.end()))
        {
            vector <int> c = a;
            int i = 0;
            int j = 0;
            bool f = true;
            while(i < n && j < m)
            {
                if (c[i] > 0)
                {
                    c[i] -= b[j];
                    j++;
                }
                if (c[i] == 0)
                {
                    i++;
                }
                if (c[i] < 0)
                {
                    f = false;
                    break;
                }
            }
            if (f && i == n)
            {
                cout << "YES";
                return 0;
            }
        }
    }
    cout << "NO";
    return 0;
}

Compilation message

bank.cpp:20:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

Subtask #1
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 70 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 70 ms 384 KB Output is correct

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 22 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 20 ms 256 KB Output is correct
5 Correct 144 ms 376 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 9 ms 384 KB Output is correct
9 Correct 155 ms 380 KB Output is correct
10 Correct 29 ms 256 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1074 ms 256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 70 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 70 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 22 ms 384 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 20 ms 256 KB Output is correct
14 Correct 144 ms 376 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 9 ms 384 KB Output is correct
18 Correct 155 ms 380 KB Output is correct
19 Correct 29 ms 256 KB Output is correct
20 Execution timed out 1074 ms 256 KB Time limit exceeded
21 Halted 0 ms 0 KB -