#include<bits/stdc++.h>
using namespace std;

int main(){
	int n, q; cin >> n >> q;
	const int mx = 100003;
	vector<int> I(q), S(q), T(q);
	vector<int> imos(mx);
	for(int i=0; i<q; i++){
		cin >> I[i] >> S[i] >> T[i];
		I[i]--;
		imos[S[i]]++;
		imos[T[i]]--;
	}
	for(int i=0; i<mx-1; i++){
		imos[i+1] += imos[i];
	}
	vector<double> rui(mx+1);
	for(int i=0; i<mx; i++){
		if (imos[i] > 0){
			rui[i+1] = rui[i] + (double)1 / imos[i];
		}else{
			rui[i+1] = rui[i];
		}
	}
	vector<double> ans(n);
	for (int i=0; i<q; i++){
		ans[I[i]] += rui[T[i]] - rui[S[i]];
	}
	cout << fixed << setprecision(15);
	for (int i=0; i<n; i++){
		cout << ans[i] << '\n';
	}
}