사유 문제를 넓히다. Codeforces Round #308(Div.2)--D(사비테마) standard input standard output After that he connected all the points pairwise and saw that as a result many triangles were formed with vertices in the painted points. The first line contains integer n (1 ≤ n ≤ 2000) — t... 사유 문제를 넓히다.CodeForces
Codeforces Round #308(Div.2)--D(사비테마) standard input standard output After that he connected all the points pairwise and saw that as a result many triangles were formed with vertices in the painted points. The first line contains integer n (1 ≤ n ≤ 2000) — t... 사유 문제를 넓히다.CodeForces