Submission #108922

#	Time	Username	Problem	Language	Result	Execution time	Memory
108922		bibabas	Bank (IZhO14_bank)	C++14	0 / 100	1082 ms	1152 KiB

bank

#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>
#define ll long long
#define vi vector<int>
#define vvi vector<vi>
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair

int INF = (int)2e9;

using namespace std;

template <class T>
istream& operator >>(istream &in, vector<T> &arr) {
    for (T &cnt : arr) {
        in >> cnt;
    }
    return in;
};

void solve() {
    unsigned int n, m; cin >> n >> m;
    vi a(n), b(m); cin >> a >> b;
    vi used((int)2e5 + 1, 0);
    for (int i = 0; i < 1 << m; ++i){
        int sum = 0;
        for (int j = 0; j < m; ++j){
            if (i & (1 << j)){
                sum += b[j];
                used[sum] = 1;
            }
        }
        sum = 0;
        int ans = 0;
        for (int j = 0; j < n; ++j){
            sum += a[j];
            if (used[sum])
                ans++;
        }
        if (ans == n){
            cout << "YES";
            return;
        }
        used.assign((int)2e5 + 1, 0);
    }
    cout << "NO";
}

int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
#endif

    solve();

    return 0;
}

Compilation message (stderr)

bank.cpp: In function 'void solve()':
bank.cpp:30:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < m; ++j){
                         ~~^~~
bank.cpp:38:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < n; ++j){
                         ~~^~~
bank.cpp:43:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (ans == n){
             ~~~~^~~~

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