from itertools import accumulate

N, Q = map(int, input().split())
I, S, T = [0]*Q, [0]*Q, [0]*Q
for j in range(Q):
  I[j], S[j], T[j] = map(int, input().split())
  I[j] -= 1
M = max(T)

dsum = [0]*(M+1)
for s in S: dsum[s] += 1
for t in T: dsum[t] -= 1
dsum = list(accumulate(dsum))
dsum = [1/n if n >= 1 else 0.0 for n in dsum]
dsum = list(accumulate(dsum, initial=0.0))

ans = [0.0]*N
for i, s, t in zip(I, S, T):
  ans[i] += dsum[t] - dsum[s]

print(*ans, sep="\n")