56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
#include <iostream>
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#include <cstdio>
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#include <cmath>
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#include <set>
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using namespace std;
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int a[100005];
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multiset<int> s;
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int main()
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{
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int T;
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scanf("%d", &T);
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int n, k;
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while(T--) {
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s.clear();
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scanf("%d %d", &n, &k);
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for(int i = 0; i < n; ++i) {
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scanf("%d", &a[i]);
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}
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if(k == 0) {
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printf("0\n");
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continue;
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}
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s.insert(a[0]);
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int l = 0, r = 1;
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int cnt = 1;
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long long ans = 0;
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int minn, maxn;
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while(1) {
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if(s.size()) {
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minn = *s.begin();
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maxn = *s.rbegin();
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if(abs(a[r]-minn) < k && abs(a[r]-maxn) < k) {
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ans += (long long)s.size();
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s.insert(a[r]);
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r++;
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if(r == n) break;
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}
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else {
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if(s.size()) {
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s.erase(s.find(a[l]));
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}
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l++;
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}
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}
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else {
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l = r;
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s.insert(a[r]);
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r++;
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if(r == n) break;
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}
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}
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printf("%I64d\n", ans+n);
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}
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return 0;
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}
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