From 57392df97765d82099de0e01fd2293f0f5e0fe9f Mon Sep 17 00:00:00 2001
From: hanyixuanten <105723997+hanyixuanten@users.noreply.github.com>
Date: Thu, 10 Sep 2026 21:12:43 +0800
Subject: [PATCH] new file:   P7075.cpp

---
 P7075.cpp | 154 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100644 P7075.cpp

diff --git a/P7075.cpp b/P7075.cpp
new file mode 100644
index 0000000..4147cff
--- /dev/null
+++ b/P7075.cpp
@@ -0,0 +1,154 @@
+#include <bits/stdc++.h>
+using namespace std;
+typedef long long ll;
+const ll T_BC = 1721424LL;
+const ll jend = 577737LL;
+const int ds[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+bool runac(int y) { return y % 4 == 0; }
+bool runbc(int y) { return y % 4 == 1; }
+bool runac_new(int y)
+{
+    return (y % 400 == 0) || (y % 4 == 0 && y % 100 != 0);
+}
+ll count_run(ll N)
+{
+    if (N <= 0)
+        return 0;
+    return N / 4 - N / 100 + N / 400;
+}
+ll days_bc(int y)
+{
+    ll years = 4713 - y;
+    ll leaps = 1179 - (y + 3) / 4;
+    return years * 365 + leaps;
+}
+ll days_ac(int y)
+{
+    ll years = y - 1;
+    ll leaps = years / 4;
+    return years * 365 + leaps;
+}
+ll days_new(ll y)
+{
+    if (y <= 1583)
+        return 0;
+    ll years = y - 1583;
+    ll leaps = count_run(y - 1) - count_run(1582);
+    return years * 365 + leaps;
+}
+pair<int, int> gett(ll q, bool run)
+{
+    int days[13];
+    for (int i = 1; i <= 12; ++i)
+        days[i] = ds[i];
+    if (run)
+        days[2] = 29;
+    int month = 1;
+    while (q >= days[month])
+    {
+        q -= days[month];
+        ++month;
+    }
+    return {month, (int)q + 1};
+}
+void solve(ll r)
+{
+    if (r < T_BC)
+    {
+        int el = 1, er = 4713;
+        while (el < er)
+        {
+            int mid = (el + er) / 2;
+            if (days_bc(mid) <= r)
+                er = mid;
+            else
+                el = mid + 1;
+        }
+        int y = el;
+        ll q = r - days_bc(y);
+        bool run = runbc(y);
+        auto [m, d] = gett(q, run);
+        printf("%d %d %d BC\n", d, m, y);
+    }
+    else
+    {
+        r -= T_BC;
+        if (r < jend)
+        {
+
+            int el = 1, er = 1582;
+            while (el < er)
+            {
+                int mid = (el + er + 1) / 2;
+                if (days_ac(mid) <= r)
+                    el = mid;
+                else
+                    er = mid - 1;
+            }
+            int y = el;
+            ll q = r - days_ac(y);
+            bool run = runac(y);
+            auto [m, d] = gett(q, run);
+            printf("%d %d %d\n", d, m, y);
+        }
+        else
+        {
+            r -= jend;
+            if (r < 78)
+            {
+                int y = 1582, m, d;
+                if (r < 17)
+                {
+                    m = 10;
+                    d = 15 + r;
+                }
+                else
+                {
+                    r -= 17;
+                    if (r < 30)
+                    {
+                        m = 11;
+                        d = 1 + r;
+                    }
+                    else
+                    {
+                        r -= 30;
+                        m = 12;
+                        d = 1 + r;
+                    }
+                }
+                printf("%d %d %d\n", d, m, y);
+            }
+            else
+            {
+                r -= 78;
+                ll el = 1583, er = 1000000000LL + 1000000;
+                while (el < er)
+                {
+                    ll mid = (el + er + 1) / 2;
+                    if (days_new(mid) <= r)
+                        el = mid;
+                    else
+                        er = mid - 1;
+                }
+                ll y = el;
+                ll q = r - days_new(y);
+                bool run = runac_new((int)y);
+                auto [m, d] = gett(q, run);
+                printf("%d %d %lld\n", d, m, y);
+            }
+        }
+    }
+}
+int main()
+{
+    int t;
+    scanf("%d", &t);
+    while (t--)
+    {
+        ll q;
+        scanf("%lld", &q);
+        solve(q);
+    }
+    return 0;
+}
\ No newline at end of file