Submission #37592

#	Time	Username	Problem	Language	Result	Execution time	Memory
37592		alenam0161	Bank (IZhO14_bank)	C++14	52 / 100	1067 ms	37028 KiB

bank

#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
 
using ll = long long;
using ld = long double;
const int inf = 1000 * 1000 * 1000 + 7;
using namespace std;
 
const int N = 207;
 
vector<int> a, b;
int ast = 0;
float st = 0;
map < pair<float, int>, bool> mp;
void rek() {
	if (st == a.size() - 1&&a[st]==0) {
		cout << "YES"; exit(0);
	}
	if (a[st] == 0) { st++; rek(); st--; }
	if (mp[{ {st}, ast}] == true)return;
	mp[{ {st}, ast}] = true;
	for (int j = 0; j < b.size(); ++j) {
		if (a[st] >= b[j]) {
			if (b[j] > 0) {
				int k = b[j];
				a[st] -= k; b[j] -= k; ast += (1 << j);
				rek();
				a[st] += k; b[j] += k; ast -= (1 << j);
			}
		}
		else break;
	}
}
int main()
{
 
	ios_base::sync_with_stdio(false);
	int n, m;
	cin >> n >> m;
	
	for (int i = 0; i < n; ++i) {
		int k; cin >> k; a.push_back(k);
	}
	for (int i = 0; i < m; ++i) {
		int k; cin >> k; b.push_back(k);
	}
	sort(a.begin(), a.end());
	sort(b.begin(), b.end());
	rek();
	cout << "NO" << endl;
	return 0;
} 

Compilation message (stderr)

bank.cpp: In function 'void rek()':
bank.cpp:24:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int j = 0; j < b.size(); ++j) {
                  ~~^~~~~~~~~~

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