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OI-codes/AtCoder/ABC245/C/C.cpp

37 lines
785 B
C++

#include <iostream>
#include <cmath>
using std::cin;
using std::cout;
const char endl = '\n';
const int N = 2e5 + 5;
int n, k, a[N], b[N], f[N][2];
int main() {
std::ios::sync_with_stdio(false);
cin >> n >> k;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
for (int i = 1; i <= n; i++) {
cin >> b[i];
}
f[1][0] = f[1][1] = 1;
for (int i = 2; i <= n; i++) {
f[i][0] |= ((std::abs(a[i] - a[i - 1]) <= k && f[i - 1][0]) || (std::abs(a[i] - b[i - 1]) <= k && f[i - 1][1]));
f[i][1] |= ((std::abs(b[i] - a[i - 1]) <= k && f[i - 1][0]) || (std::abs(b[i] - b[i - 1]) <= k && f[i - 1][1]));
}
if (f[n][0] | f[n][1]) {
cout << "Yes" << endl;
} else {
cout << "No" << endl;
}
return 0;
}