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homework_11.22(1).cpp

@@ -0,0 +1,26 @@
+#include<iostream>
+#include<windows.h>
+
+using namespace std;
+
+int main(){
+    int tree = 17,wn = 0,clim = 3,down = 1,time = 0;
+
+    while (wn < tree)
+    {
+        wn += clim;
+        time ++;
+
+        if (wn >= tree)
+        {
+            break;
+        }
+        
+        wn -= down;
+        time++;
+    }
+
+    cout <<time<<endl;
+    
+    return 0;
+}

homework_11.22(2).cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+#include<iomanip>
+
+using namespace std;
+
+int main(){
+    int n;
+
+    cin >> n;
+
+    double sum = 0.0;
+
+    for (int i = 1; i <= n; ++i)
+    {
+        sum += 1.0 / i;
+    }
+
+    cout <<fixed<<setprecision(3)<<sum<<endl;
+
+    return 0;
+}