0
1
mirror of https://git.sb/baoshuo/OI-codes.git synced 2024-12-13 14:06:27 +00:00
OI-codes/Luogu/CF1445A/CF1445A.cpp

36 lines
681 B
C++
Raw Normal View History

2020-11-14 14:15:30 +00:00
#include <bits/stdc++.h>
using namespace std;
int main() {
int t;
cin >> t;
while (t--) {
int n, x, a[55], b[55];
bool flag = false;
cin >> n >> x;
for (int i = 0; i < n; i++) {
cin >> a[i];
}
for (int i = 0; i < n; i++) {
cin >> b[i];
}
sort(a, a + n);
sort(b, b + n);
reverse(b, b + n);
for (int i = 0; i < n; i++) {
if (a[i] + b[i] > x) {
flag = true;
}
}
if (flag) {
cout << "No" << endl;
}
else {
cout << "Yes" << endl;
}
}
return 0;
}