#include <bits/stdc++.h>
using namespace std;
#define ii pair<int, int>
#define f first
#define s second
int A[100000];
int dp[10000001];
set<ii> transitions;
int main() {
int m, q; cin >> m >> q;
for (int i = 0; i < m; i++) cin >> A[i];
for (int i = 0; i < 1000001; i++) dp[i] = -1;
dp[0] = 0;
int nxtStart = 0, nxtVal = 0;
for (int i = 0; i < m; i++) {
nxtVal = max(nxtVal, A[i]);
transitions.insert({A[i],A[i]});
}
while (nxtStart != -1) {
int begin = nxtStart, end = begin + nxtVal;
nxtStart = -1;
nxtVal = 0;
end = min(end, 10000001);
for (int i = begin + 1; i < end; i++) {
while (!transitions.empty() && transitions.begin()->f <= i) {
int x = transitions.begin()->s;
transitions.erase(transitions.begin());
if (nxtStart+nxtVal < i + x) {
nxtStart = i;
nxtVal = x;
}
if (i+x<10000001) transitions.insert({i+x,x});
}
if (dp[i] == -1) dp[i] = dp[begin]+1;
}
}
for (int i = 0; i < q; i++) {
int x; cin >> x;
if (dp[x] == -1) cout << "oo" << "\n";
else cout << dp[x] << "\n";
}
return 0;
}
