Submission #3729804

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Source Code Expand

N=int(input())
a=[int(i) for i in input().split()]
l=0
f=0
n=0
for i in range(N):
  if abs(a[i])>l:
    if a[i]>0:
      f=1
      n=i
      l=abs(a[i])
    else:
      f=-1
      n=i
      l=abs(a[i])
      
if f==0:
  print(0)
elif f==1:
  print(2*N-2)
  for i in range(N):
    if i!=n:
      print(n+1,i+1)
  for i in range(N-1):
    print(i+1,i+2)
elif f==-1:
  print(2*N-2)
  for i in range(N):
    if i!=n:
      print(n+1,i+1)
  for i in range(N-1)[::-1]:
    print(i+2,i+1)

Submission Info

Judge Result