49 lines
985 B
C++
49 lines
985 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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#define ll long long
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#define endl '\n'
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ll pow(ll x,ll y,ll m=1e9+7){ll ans=1;x%=m;while(y){if(y&1)ans=(ans*x)%m;x=(x*x)%m;y>>=1;}return ans;}
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ll points(ll r)
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{
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ll p = 0;
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for(ll x = 0; x <= r; ++x)
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{
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ll y,d = (r + 1) * (r + 1) - x * x;
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ll l = 0, h = r;
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while(l <= h)
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{
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ll mid = l + (h - l) / 2;
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if(mid * mid < d)
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{
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y = mid;
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l = mid + 1;
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}
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else h = mid - 1;
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}
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if(x == 0) p += (y * 2 + 1);
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else p += ((y * 2 + 1) * 2);
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}
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return p;
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}
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void solve()
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{
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ll r;
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cin >> r;
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ll p1 = points(r);
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ll p2 = points(r - 1);
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cout << p1 - p2 << endl;
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}
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signed main()
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{
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ios_base::sync_with_stdio(false), cin.tie(nullptr);
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int TCS = 1;
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cin >> TCS;
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for (int TC = 1; TC <= TCS; ++TC)
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{
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// cout<<"Case "<<TC<<": ";
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solve();
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}
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}
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