n,q=map(int,input().split())
L=[list(map(int,input().split())) for _ in range(q)]

T=[0]*(10**5+2)
for i,s,t in L:
  T[s]+=1
  T[t]-=1
g=[0]*(10**5+3)  
for i in range(1,10**5+2):
  T[i]+=T[i-1]
  if 0<T[i]:
    g[i]=1/T[i]
if 0<T[0]:
  g[0]=1/T[0]

for i in range(1,10**5+2):
  g[i]+=g[i-1]

ans=[0]*n
for i,s,t in L:
  ans[i-1]+=g[t-1]-g[s-1]
  
for e in ans:
  print(e)