n,q = map(int,input().split())

M = 10**5+5

imos = [0]*M

IST = [list(map(int,input().split())) for i in range(q)]

ans = [0]*n

for i,s,t in IST:
    imos[s] += 1
    imos[t] -= 1

score = [0]*M
for i in range(M-1):
    imos[i+1] += imos[i]
for i in range(M):
    if imos[i]:
        score[i] = 1/imos[i]
    score[i] += score[i-1]
for i,s,t in IST:
    i -= 1
    ans[i] += score[t-1]
    if s:
        ans[i] -= score[s-1]

for i in ans:
    print(i)