Submission #1107399

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107399		vjudge1	Bank (IZhO14_bank)	C++17	0 / 100	3 ms	2384 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[21][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];
	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 += 2 * pw[j];
			}
			if(sum == a[i] && dp1[i - 1][res] == i - 1) {
				// cout << i << ' ' << sum << ' ' << mask << "\n";
				// for(int j = 0; j < m; j++) {
				// 	cout << us[j] << ' ';
				// }
				dp1[i][mask] = max(dp1[i][mask], dp1[i - 1][res] + 1);
				// cout << dp1[i][mask];
				// cout << "\n\n";
			}
			if(dp1[i][mask] == n)ok = 1;
		}
	}
	cout << (ok ? "YES\n" : "NO\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: 0 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29