add ABC179

Author: IsHYuhi

ABC/ABC179/A.py

@@ -0,0 +1,6 @@
+s = input()
+
+if s[-1]=='s':
+    print(s+'es')
+else:
+    print(s+'s')

ABC/ABC179/B.py

@@ -0,0 +1,14 @@
+n = int(input())
+
+d = [list(map(int, input().split())) for i in range(n)]
+count = 0
+for i, j in d:
+    if i==j:
+        count += 1
+    else:
+        count = 0
+
+    if count>=3:
+        print('Yes')
+        exit()
+print('No')

ABC/ABC179/C.py

@@ -0,0 +1,11 @@
+ans = 0
+n = int(input())
+for a in range(1, n):
+    for b in range(a, n):
+        if a*b>=n:
+            break
+        if a==b:
+            ans+=1
+        else:
+            ans += 2
+print(ans)