Submission #1312016

#	Time	Username	Problem	Language	Result	Execution time	Memory
1312016		putuputu	Bank (IZhO14_bank)	C++20	0 / 100	1 ms	572 KiB

bank

#include <bits/stdc++.h>
using namespace std;
int N, M;
vector<int> s, bank;
bool used[100]; 
bool salary(int pe){
    if (pe==N) return true; 
    int tar=s[pe];
    function<bool(int, int)> dfs=[&](int idx, int sum) -> bool {
        if (sum>tar) return false;
        if (sum==tar) return true;
        for (int i=idx; i<M; i++) {
            if (!used[i]) {
                used[i]=true;
                if (dfs(i+1, sum+bank[i])) return true;
                used[i]=false;
            }
        }
        return false;
    };
    for (int i=0; i<M; i++) {
        if (!used[i]) {
            used[i]=true;
            if (dfs(i+1, bank[i])) {
                if (salary(pe+1)) return true;
            }
            used[i]=false;
        }
    }
    return false;
}
int main() {
    freopen("bank.in", "r", stdin);
    freopen("bank.out", "w", stdout);
    cin >> N >> M;
    s.resize(N);
    bank.resize(M);
    for (int i=0; i<N; i++) cin >> s[i];
    for (int i=0; i<M; i++) cin >> bank[i];
    sort(s.rbegin(), s.rend());
    if (salary(0)) cout << "YES\n";
    else cout << "NO\n";
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     freopen("bank.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:34:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     freopen("bank.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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