Submission #1098579

#	Time	Username	Problem	Language	Result	Execution time	Memory
1098579		vjudge1	Bank (IZhO14_bank)	C++17	0 / 100	5 ms	8728 KiB

bank

#include <bits/stdc++.h>
// #include <ext/rope>
// #include <ext/pb_ds/assoc_container.hpp>

// using namespace __gnu_pbds;
// using namespace __gnu_cxx;
using namespace std;

// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")

//-----------------------
// #define   ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define            ll long long
#define           ull unsigned long long
#define            db double
#define            ld long double
#define            pb push_back
#define            pf push_front
#define            mp make_pair
#define      mem(f,x) memset(f, x, sizeof(f))
#define   __lcm(a, b) (1ll * a * b) / __gcd(a, b)
#define  bit(mask, i) ((mask >> i) & 1)
#define           pii pair<int, int>
#define           pll pair<ll, ll>
#define            el '\n'
#define             F first
#define             S second
#define         io(x) freopen(x".inp","r",stdin),freopen(x".out","w",stdout)

template <class X, class Y> bool maximize(X &x, const Y &y) { return (x < y ? x = y, 1 : 0); }
template <class X, class Y> bool minimize(X &x, const Y &y) { return (x > y ? x = y, 1 : 0); }

//-----------------------
const int INF = 1e9;
const ll LINF = 1e18;
const int MOD = 1e9 + 7;
const int MULTI = 0;
const ld eps = 1e-9;
const int dx[4]{0, 1, 0, -1}, dy[4]{1, 0, -1, 0}; // R D L U
const int ddx[4]{-1, 1, 1, -1}, ddy[4]{1, 1, -1, -1}; // UR DR DL UL
const char cx[4]{'R', 'D', 'L', 'U'};
const ll base = 31;
const int nMOD = 2;
const ll mods[] = {(ll)1e9 + 10777, (ll)1e9 + 19777, (ll)1e9 + 3, (ll)1e9 + 3777};

const int maxn = 25;
int n, m, a[maxn], b[maxn], C[1 << 20], L[1 << 20];

void solve() {
	cin >> n >> m;
	for (int i = 0; i < n; ++i)
		cin >> a[i];
	for (int i = 0; i < m; ++i)
		cin >> b[i];

	mem(C, -1); mem(L, -1); C[0] = L[0] = 0;
	for (int mask = 0; mask < (1 << m); ++mask) {
		for (int lst = 0; lst < m; ++lst) {
			if (!bit(mask, lst)) continue;
			int prev = mask ^ (1 << lst);

			if (C[prev] == -1) continue;

			int nxt = L[prev] + b[lst];
			int nxtP = a[C[prev]];

			if (nxt < nxtP) {
				C[mask] = C[prev];
				L[mask] = nxt;
			} else if (nxt == nxtP) {
				C[mask] = C[prev] + 1;
				L[mask] = 0;
			}
		}

		if (C[mask] == n) return cout << "YES", void();
	}

	cout << "NO";
}

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    freopen("bank.in", "r", stdin);
    freopen("bank.out", "w", stdout);

    if (!MULTI) solve();
    else {
        int test; cin >> test;
        while (test--) solve();
    }
    
    return 0;
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:87:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   87 |     freopen("bank.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:88:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   88 |     freopen("bank.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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