first commit

from old repository to a new repository

boj/24060.py

@@ -0,0 +1,44 @@
+import sys
+
+n,k=map(int,sys.stdin.readline().rstrip().split())
+oarr=list(map(int,sys.stdin.readline().rstrip().split()))
+karr=[]
+
+def merge_sort(l,r):
+    if l<r:
+        q=int((l+r)/2)
+        merge_sort(l,q)
+        merge_sort(q+1,r)
+        merge(l,q,r)
+
+def merge(l,q,r):
+    tarr=[]
+    i=l
+    j=q+1
+
+    while i<=q and j<=r:
+        if oarr[i]<oarr[j]:
+            tarr.append(oarr[i])
+            karr.append(oarr[i])
+            i+=1
+        else:
+            tarr.append(oarr[j])
+            karr.append(oarr[j])
+            j+=1
+    while i<=q:
+        tarr.append(oarr[i])
+        karr.append(oarr[i])
+        i+=1
+    while j<=r:
+        tarr.append(oarr[j])
+        karr.append(oarr[j])
+        j+=1
+    
+    for t in range(len(tarr)):
+        oarr[t+l]=tarr[t]
+
+merge_sort(0,n-1)
+if len(karr)<k:
+    print(-1)
+else:
+    print(karr[k-1])