This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
#define ld long double
// 217
// 44
using namespace std;
vector <short> a, b;
short n, m;
void bkt1(short , vector <short> &);
int cnt = 0;
void bkt2(short pa, short pb, vector <short> &b, short sum, vector <short> &aux) {
if(cnt > 40000000) {
cout << "NO";
exit(0);
}
if(pb == b.size()) {
if(sum == a[pa]) {
bkt1(pa + 1, aux);
}
}
else {
cnt++;
bkt2(pa, pb + 1, b, sum + b[pb], aux);
aux.push_back(b[pb]);
cnt++;
bkt2(pa, pb + 1, b, sum, aux);
aux.pop_back();
}
}
void bkt1(short pa, vector <short> &b) {
if(pa == n) {
cout << "YES";
exit(0);
}
else {
vector <short> aux;
bkt2(pa, 0, b, 0, aux);
}
}
int main() {
//ifstream cin("A.in");
//ofstream cout("A.out");
short i;
ios::sync_with_stdio(false);
cin.tie(0), cout.tie(0);
cin >> n >> m;
a.resize(n);
b.resize(m);
for(i = 0; i < n; i++) {
cin >> a[i];
}
for(i = 0; i < m; i++) {
cin >> b[i];
}
sort(b.begin(), b.end(), greater<int>());
sort(a.begin(), a.end(), greater<int>());
bkt1(0, b);
cout << "NO";
//cin.close();
//cout.close();
return 0;
}
Compilation message (stderr)
bank.cpp: In function 'void bkt2(short int, short int, std::vector<short int>&, short int, std::vector<short int>&)':
bank.cpp:22:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pb == b.size()) {
~~~^~~~~~~~~~~
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