Hey there!
I wanted to ask that in the problem: 660D - Количество параллелограммов , Shouldn't the answer for the below test-case be zero (but my A.C code gives one) ?
TEST-CASE:
4
0 0
0 20
0 5
0 15
I wanted to ask that in the problem: 660D - Количество параллелограммов , Shouldn't the answer for the below test-case be zero (but my A.C code gives one) ?
TEST-CASE:
4
0 0
0 20
0 5
0 15
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It is guaranteed in the problem statement that no three of the given points lie on the same line, and the test case you made violates that condition.
Thank You, almost missed it !