제출 #468050

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
468050		KhoaHo	은행 (IZhO14_bank)	C++17	100 / 100	134 ms	8640 KiB

bank

#include <bits/stdc++.h>
using namespace std;
///define-zone
#define task "test"
#define vec vector
#define priq priority_queue
#define pf push_front
#define pb push_back
#define popb pop_back
#define popf pop_front
#define SZ(a) a.begin(), a.end()
#define SZZ(a, begin, end) a + begin, a + begin + end
#define fi first
#define se second
#define BIT(n) (1 << n)

///typedef-zone
typedef long long ll;
typedef unsigned long long ull;
typedef long double ldb;
typedef double db;
typedef pair<int, int> ii;
typedef pair<int, ii> iii;

///code-mau
template <class val>
inline val gcd(val a, val b) { return (a ? gcd(b % a, a) : b); }
template <class val>
inline val fmul(val a, val b, val m)
{
    if (!b)
        return 0;
    if (!(b - 1))
        return a;
    if (b % 2)
        return (fmul(a, b / 2, m) * 2 + a) % m;
    else
        return (fmul(a, b / 2, m) * 2) % m;
}
template <class val>
inline bool getBit(val pos, val mask) { return ((mask >> pos) & 1); }
void fastio()
{
    ios_base::sync_with_stdio(NULL);
    cin.tie(NULL);
    cout.tie(NULL);
}
void init()
{
    freopen(task ".inp", "r", stdin);
    freopen(task ".out", "w", stdout);
}
const int N = int(1e6) + 1;
int dp[(1 << 20)], f[(1 << 20)], a[21], b[21], n, m;
int main()
{
    fastio();
    cin >> n >> m;
    for (int i = 0; i < n; i++)
        cin >> a[i];
    for (int i = 0; i < m; i++)
        cin >> b[i];
    memset(dp, -1, sizeof(dp));
    memset(f, -1, sizeof(f));
    dp[0] = f[0] = 0;
    for (int mask = 0; mask < BIT(m); mask++)
    {
        for (int i = 0; i < m; i++)
        {
            if (!getBit(i, mask))
                continue;
            int pre = (mask ^ (1 << i));
            if (dp[pre] < 0)
                continue;
            int cur = f[pre] + b[i];
            int target = a[dp[pre]];
            if (cur < target)
            {
                dp[mask] = dp[pre];
                f[mask] = cur;
            }
            else if (cur == target)
            {
                dp[mask] = dp[pre] + 1;
                f[mask] = 0;
            }
        }
        if (dp[mask] == n)
        {
            cout << "YES";
            return 0;
        }
    }
    cout << "NO";
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'void init()':
bank.cpp:50:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |     freopen(task ".inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:51:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |     freopen(task ".out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

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