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B.cpp
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B.cpp
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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll searchEven(ll n)
{
ll l = 0, r = 2e9, ans = r;
while (l <= r) {
ll mid = l + (r - l) / 2;
if (4LL * mid * (mid + 1) + 1 >= n) {
ans = mid;
r = mid - 1;
}
else {
l = mid + 1;
}
}
return 2 * ans;
}
ll searchOdd(ll n)
{
ll l = 0, r = 2e9, ans = r;
while (l <= r) {
ll mid = l + (r - l) / 2;
if (4 * mid * mid >= n) {
ans = mid;
r = mid - 1;
}
else {
l = mid + 1;
}
}
return 2 * ans - 1;
}
void solve()
{
ll n;
cin >> n;
cout << min(searchEven(n), searchOdd(n)) << '\n';
}
int main()
{
#ifndef ONLINE_JUDGE
//freopen("input.txt", "r", stdin);
//freopen("output.txt", "w", stdout);
//freopen("Error.txt", "w", stderr);
#endif
ios_base::sync_with_stdio(false);
cin.tie(NULL), cout.tie(NULL);
int t = 1;
cin >> t;
while (t--) solve();
return 0;
}