From 0a117b5038ba3def0aef026a1c1d02c2358a248a Mon Sep 17 00:00:00 2001
From: yenru0 <yenru0604@gmail.com>
Date: Mon, 12 May 2025 18:42:17 +0900
Subject: [PATCH] complete 10419.cpp and cpp Makefile update

---
 space/src-cpp/Makefile               |  2 ++
 storage/zeta/cpp/completed/10419.cpp | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 storage/zeta/cpp/completed/10419.cpp

diff --git a/space/src-cpp/Makefile b/space/src-cpp/Makefile
index 7d04d2b..56c8811 100644
--- a/space/src-cpp/Makefile
+++ b/space/src-cpp/Makefile
@@ -8,6 +8,8 @@ BUILD_DIR = ../../build
 
 OUTPUT = cpp.out
 
+all: build
+
 build:
 	$(CC) -o $(BUILD_DIR)/$(OUTPUT) -O2 -Wall -lm --std=c++17 -fsanitize=address,leak,undefined $(SRC_DIR)/$(TARGET)
 
diff --git a/storage/zeta/cpp/completed/10419.cpp b/storage/zeta/cpp/completed/10419.cpp
new file mode 100644
index 0000000..854a2c7
--- /dev/null
+++ b/storage/zeta/cpp/completed/10419.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+
+int max_late_time(int d) {
+    int s = 1;
+    while (s * s + s <= d) {
+        s++;
+    }
+    return s - 1;
+}
+
+int main() {
+    int T;
+    std::cin >> T;
+    int d;
+    for (int t = 0; t < T; t++) {
+        std::cin >> d;
+        std::cout << max_late_time(d) << std::endl;
+    }
+    return 0;
+}
\ No newline at end of file