Submission #124036


Source Code Expand

r,c = gets.split(/ /).map(&:to_i)
x,y = gets.split(/ /).map(&:to_i)
d,l = gets.split(/ /).map(&:to_i)

def perm(n, r)
  ((n-r+1)..n).reduce(1){|s,x|s*x}
end

def combi(n, r)
  perm(n,r)/perm(r,r)
end

$mm = {}
def sel(x, y, d, l)
  if d+l <= x*y then
    combi(x*y,d)*combi(x*y-d,l)
  else
    0
  end
end
def solve(x, y, d, l)
  return 0 if x*y < d+l
  return combi(x*y,d) if x*y == d+l
  s = combi(x*y,d)*combi(x*y-d,l)
  s -= 2*sel(x-1,y,d,l)
  s -= 2*sel(x,y-1,d,l)
  s += 4*sel(x-1,y-1,d,l)
  s += sel(x-2,y,d,l)
  s += sel(x,y-2,d,l)
  s -= 2*sel(x-1,y-2,d,l)
  s -= 2*sel(x-2,y-1,d,l)
  s += sel(x-2,y-2,d,l)
  s
end

m = (r+1-x)*(c+1-y)
puts m * solve(x, y, d, l) % 1000000007

Submission Info

Submission Time
Task D - AtCoder社の冬
User kinodjnz
Language Ruby (1.9.3)
Score 101
Code Size 722 Byte
Status AC
Exec Time 59 ms
Memory 4844 KB

Judge Result

Set Name sub All
Score / Max Score 100 / 100 1 / 1
Status
AC × 25
AC × 52
Set Name Test Cases
sub 00_sample_01E.txt, 00_sample_02E.txt, 00_sample_03E.txt, test_03E.txt, test_04E.txt, test_07E.txt, test_08E.txt, test_11E.txt, test_12E.txt, test_15E.txt, test_16E.txt, test_19E.txt, test_20E.txt, test_23E.txt, test_24E.txt, test_27E.txt, test_28E.txt, test_31E.txt, test_32E.txt, test_36E.txt, test_37E.txt, test_38E.txt, test_39E.txt, test_45E.txt, test_47E.txt
All 00_sample_01E.txt, 00_sample_02E.txt, 00_sample_03E.txt, 00_sample_04.txt, test_01.txt, test_02.txt, test_03E.txt, test_04E.txt, test_05.txt, test_06.txt, test_07E.txt, test_08E.txt, test_09.txt, test_10.txt, test_11E.txt, test_12E.txt, test_13.txt, test_14.txt, test_15E.txt, test_16E.txt, test_17.txt, test_18.txt, test_19E.txt, test_20E.txt, test_21.txt, test_22.txt, test_23E.txt, test_24E.txt, test_25.txt, test_26.txt, test_27E.txt, test_28E.txt, test_29.txt, test_30.txt, test_31E.txt, test_32E.txt, test_33.txt, test_34.txt, test_35.txt, test_36E.txt, test_37E.txt, test_38E.txt, test_39E.txt, test_40.txt, test_41.txt, test_42.txt, test_43.txt, test_44.txt, test_45E.txt, test_46.txt, test_47E.txt, test_48.txt
Case Name Status Exec Time Memory
00_sample_01E.txt AC 58 ms 4096 KB
00_sample_02E.txt AC 53 ms 4116 KB
00_sample_03E.txt AC 54 ms 4076 KB
00_sample_04.txt AC 57 ms 4332 KB
test_01.txt AC 52 ms 4064 KB
test_02.txt AC 53 ms 4076 KB
test_03E.txt AC 53 ms 4068 KB
test_04E.txt AC 54 ms 4196 KB
test_05.txt AC 53 ms 4076 KB
test_06.txt AC 54 ms 4332 KB
test_07E.txt AC 54 ms 4076 KB
test_08E.txt AC 54 ms 4196 KB
test_09.txt AC 54 ms 4236 KB
test_10.txt AC 53 ms 4176 KB
test_11E.txt AC 52 ms 4076 KB
test_12E.txt AC 53 ms 4204 KB
test_13.txt AC 53 ms 4204 KB
test_14.txt AC 55 ms 4844 KB
test_15E.txt AC 54 ms 4084 KB
test_16E.txt AC 59 ms 4196 KB
test_17.txt AC 55 ms 4076 KB
test_18.txt AC 58 ms 4180 KB
test_19E.txt AC 54 ms 4200 KB
test_20E.txt AC 56 ms 4076 KB
test_21.txt AC 52 ms 4076 KB
test_22.txt AC 57 ms 4580 KB
test_23E.txt AC 54 ms 4076 KB
test_24E.txt AC 54 ms 4076 KB
test_25.txt AC 54 ms 4196 KB
test_26.txt AC 55 ms 4076 KB
test_27E.txt AC 54 ms 4072 KB
test_28E.txt AC 53 ms 4076 KB
test_29.txt AC 54 ms 4332 KB
test_30.txt AC 56 ms 4592 KB
test_31E.txt AC 53 ms 4204 KB
test_32E.txt AC 53 ms 4076 KB
test_33.txt AC 54 ms 4072 KB
test_34.txt AC 55 ms 4192 KB
test_35.txt AC 53 ms 4076 KB
test_36E.txt AC 55 ms 4076 KB
test_37E.txt AC 54 ms 4228 KB
test_38E.txt AC 54 ms 4072 KB
test_39E.txt AC 55 ms 4076 KB
test_40.txt AC 54 ms 4204 KB
test_41.txt AC 55 ms 4192 KB
test_42.txt AC 53 ms 4072 KB
test_43.txt AC 53 ms 4076 KB
test_44.txt AC 54 ms 4076 KB
test_45E.txt AC 56 ms 4200 KB
test_46.txt AC 54 ms 4316 KB
test_47E.txt AC 54 ms 4220 KB
test_48.txt AC 54 ms 4072 KB