TS
Size: a a a
TS
Ж
TS
IS
l = [3, 1, 2, 5, 2, 4, 7, 6]
ret = None
for i in l:
k = 0
for j in l:
if i == j:
k += 1
if k == 2:
ret = i
break
ret
IS
Дt
Дt
IS
Дt
Дt
G
l = [3, 1, 2, 5, 2, 4, 7, 6]
ret = None
for i in l:
k = 0
for j in l:
if i == j:
k += 1
if k == 2:
ret = i
break
ret
var arr = new[] { 10, 11, 1, 2, 3, 4, 5, 5, 6, 7 };
Console.WriteLine(arr.GroupBy(a => a).Single(g => g.Count() > 1).Key);
L
Дt
Дt