« Vrati se

IMO Shortlist 1977 problem 6

1977 alg shortlist sustav
Let n be a positive integer. How many integer solutions (i, j, k, l) , \ 1 \leq i, j, k, l \leq n, does the following system of inequalities have:

1 \leq -j + k + l \leq n 1 \leq i - k + l \leq n 1 \leq i - j + l \leq n 1 \leq i + j - k \leq n \ ?

Slični zadaci

Lista Tekst Dva stupca
Zadaci
#NaslovOznakeRj.KvalitetaTežina
1530IMO Shortlist 1978 problem 16
1978 alg shortlist sustav
0
1616IMO Shortlist 1983 problem 20
1983 alg aps shortlist sustav
0
1622IMO Shortlist 1984 problem 1
1984 alg aps shortlist sustav
0
1630IMO Shortlist 1984 problem 9
1984 alg shortlist sustav
0
1670IMO Shortlist 1986 problem 7
1986 alg shortlist sustav
0
1790IMO Shortlist 1990 problem 20
1990 alg shortlist sustav
1