// Problem: No.2462 七人カノン
// Contest: yukicoder
// URL: https://yukicoder.me/problems/no/2462
// Memory Limit: 512 MB
// Time Limit: 2000 ms
// 
// Powered by CP Editor (https://cpeditor.org)

#include<bits/stdc++.h>
#define poly vector<int>
#define IOS ios::sync_with_stdio(false)
#define ll long long
#define mp make_pair
#define mt make_tuple
#define pa pair < int,int >
#define fi first
#define se second
#define inf 1e18
#define mod 998244353
#define sz(x) (int)((x).size())
#define int ll
#define N 100005
using namespace std;
int n,Q,s[N];
vector<pa>G[N];
double pre[N];
void BellaKira()
{
	cin>>n>>Q;
	for (int i=1;i<=Q;i++)
	{
		int x,l,r;
		cin>>x>>l>>r;
		s[l+1]++,s[r+1]--;
		G[x].push_back(mp(l,r));
	}
	for (int i=1;i<=100000;i++) s[i]+=s[i-1],pre[i]=pre[i-1]+(s[i]==0?0.0:1.0/s[i]);
	for (int i=1;i<=n;i++)
	{
		double ans=0;
		for (auto [l,r]:G[i])
			ans+=pre[r]-pre[l];
		cout<<fixed<<setprecision(10)<<ans<<'\n';
	}
}
signed main()
{
	IOS;
	cin.tie(0);
	int T=1;
	while (T--)
	{
		BellaKira();
	}
}