# 区間和セグ木
def update(k, x):
    k += N0 - 1
    data[k] = x  # 加算にするなら+=に
    while k >= 0:
        k = (k - 1) // 2
        data[k] = data[2 * k + 1] + data[2 * k + 2]

def query(l, r):
    s = 0
    L = l + N0;
    R = r + N0
    while L < R:
        if R & 1:
            R -= 1
            s += data[R - 1]
        if L & 1:
            s += data[L - 1]
            L += 1
        L >>= 1;
        R >>= 1
    return s


N, Q = map(int, input().split())
IST = []
maxst = 0
for _ in range(Q):
    i, s, t = map(int, input().split())
    maxst = max(maxst, t)
    IST.append((i, s, t))

# N: 処理する区間の長さ
N0 = 2 ** (maxst + 1).bit_length()
data = [0.0] * (2 * N0)

A = [0] * (maxst + 1)
for i, s, t in IST:
    A[s] += 1
    A[t] -= 1

if A[0] > 0:
    update(0, 1 / A[0])
for i in range(1, maxst + 1):
    A[i] += A[i - 1]
    if A[i] > 0:
        update(i, 1 / A[i])

ans = [0] * N
for i, s, t in IST:
    ans[i - 1] += query(s, t)
for i in range(N):
    print(ans[i])