Submission #1096155

#	Time	Username	Problem	Language	Result	Execution time	Memory
1096155		muntasir__	Bank (IZhO14_bank)	C++17	0 / 100	8 ms	16732 KiB

bank

// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const ll mod = 1e9 + 7;

ll n, m, a[20], b[20], dp1[(1 << 20)], dp2[(1 << 20)];

int main() {
#ifndef ONLINE_JUDGE
	freopen("bank.in", "r", stdin);
	freopen("bank.out", "w", stdout);
#endif
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	cin >> n >> m;
	for (int i = 0; i < n; i++)cin >> a[i];
	for (int i = 0; i < m; i++)cin >> b[i];
	memset(dp1, -1, sizeof(dp1));
	memset(dp2, -1, sizeof(dp2));
	dp1[0] = dp2[0] = 0;
	for (int mask = 1; mask < (1 << m); mask++) {
		for (int i = 0; i < m; i++) {
			if (mask & (1 << i)) {
				int prev = mask ^ (1 << i);
				int nwamnt = dp2[prev] + b[i];
				int cur_target = a[dp1[prev]];
				if (cur_target > nwamnt) {
					dp1[mask] = dp1[mask];
					dp2[mask] = nwamnt;
				}
				if (cur_target == nwamnt) {
					dp1[mask] = dp1[mask] + 1;
					dp2[mask] = 0;
				}
			}
		}
		if (dp1[mask] == n) {
			cout << "YES\n";
			return 0;
		}
	}
	cout << "NO\n";
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:12:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  freopen("bank.in", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  freopen("bank.out", "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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