Submission #1107363

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107363		vjudge1	은행 (IZhO14_bank)	C++17	44 / 100	1057 ms	49232 KiB

bank

#include <bits/stdc++.h>
#pragma optimize("g", on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
void Freopen () {
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif
}
using namespace std;
#define fi first
#define se second
#define int long long
const int N = 2e5 + 7, M = 5e6 + 7;
int a[N], b[N], n, m, dp1[2][M], pw[N], dp[N], dp2[22][1007];

void solve() {
	cin>>n>>m;
	for(int i = 1; i <= n; i++)cin>>a[i];
	for(int i = 1; i <= m; i++)cin>>b[i];
	if(n == 1) {
		dp[0] = 1;
		for(int i = 1; i <= m; i++) {
			for(int j = a[1]; j >= b[i]; j--) {
				dp[j] = max(dp[j], dp[j - b[i]]);
			}
		}
		cout << (dp[a[1]] ? "YES\n" : "NO\n");
		return;
	}
	if(n <= 10 && m <= 10) {
		bool ok = 0;
		for(int i = 1; i <= n; i++) {
			for(int mask = 0; mask < (1 << m); mask ++) {
				vector<int> pos;
				for(int j = 0; j < m; j++) {
					if((1 << j) & mask)pos.push_back(j + 1);
				}
				int k = pos.size();
				for(int maskk = 0; maskk < (1 << k); maskk ++) {
					int sum = 0, res = mask;
					for(int j = 0; j < k; j++) {
						if((1 << j) & maskk) {
							sum += b[pos[j]];
							res -= (1 << (pos[j] - 1));
						}
					}
					if(sum == a[i] && dp2[i - 1][res] == i - 1)dp2[i][mask] = dp2[i - 1][res] + 1;
					if(i == n && dp2[i][mask] == n)ok = 1;
				}
			}
		}
		cout << (ok ? "YES\n" : "NO\n");
		return;
	}
	if(m <= 14) {
		pw[0] = 1;
		for(int i = 1; i <= 14; i++)pw[i] = (pw[i - 1] * 3ll);
		bool ok = 0;
		// cout << pw[14] << '\n';
		for(int i = 1; i <= n; i++) {
			for(int mask = 0; mask < pw[m]; mask ++) {
				int full = mask;
				vector<int> us(m, 0);
				for(int j = m - 1; j >= 0; j--) {
					int x = pw[j];
					while(full >= x) {
						full -= x;
						us[j] ++;
					}
				}
				int sum = 0, res = 0;
				for(int j = 0; j < m; j++) {
					if(us[j] == 2)sum += b[j + 1];
					if(us[j] == 1)res += pw[j];
				}
				// cout << sum << ' ' << res << "\n";
				if(sum == a[i]) {
					// cout << mask << ' ' << res << ' ' << sum << '\n';
					dp1[1][mask] = max(dp1[1][mask], dp1[0][res] + 1);
				}
				if(dp1[1][mask] == n)ok = 1;
			}
			for(int mask = 0; mask < pw[m]; mask ++)dp1[0][mask] = dp1[1][mask];
		}
		cout << (ok ? "YES\n" : "NO\n");
		return;
	}
	cout << "PNX\n";
}
signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	//Freopen();
	int T = 1;
	// cin>>T;
	while(T --)solve();
}

Compilation message (stderr)

bank.cpp:2: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    2 | #pragma optimize("g", on)
      | 
bank.cpp: In function 'void Freopen()':
bank.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:11:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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