a = 100000

n, q = (int(x) for x in input().split())


M = [[0 for i in range(0,a+1)]for j in range(0,n+1)]

T = [0] * (a+1)

A = [0] * n

for i in range(0,q):
    
    m, t1, t2 = (int(x) for x in input().split())
    
    j = 0
    
    for j in range(t1,t2):
        
        T[j] += 1

        M[m-1][j] = 1
      
for i in range(0,n):
    for j in range(0,a):
        
        if M[i][j] == 1 and T[j] != 0:
            
            A[i] += 1/T[j]
            
for i in range(0,n):
    
    print(A[i])