Submission #114871

#	Time	Username	Problem	Language	Result	Execution time	Memory
114871		mrboorger	Bank (IZhO14_bank)	C++14	25 / 100	1083 ms	476 KiB

bank

#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);
    // O(m! * max(n, m))
    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());
    bool xx = true;
    while(next_permutation(b.begin(), b.end()))
    {
        xx = false;
        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 (stderr)

bank.cpp:20:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
bank.cpp: In function 'int main()':
bank.cpp:49:10: warning: variable 'xx' set but not used [-Wunused-but-set-variable]
     bool xx = true;
          ^~

• Subtask 1: 0 / 19
• Subtask 2: 25 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29