#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
#define rep(i, n) for(int i=0;i<(n);++i)
#define rep1(i, n) for(int i=1;i<=(n);i++)
#define ll long long
using mint = modint998244353;
using P = pair<ll,ll>;
using lb = long double;
using T = tuple<ll, ll, ll>;
#ifdef LOCAL
#  include <debug_print.hpp>
#  define dbg(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define dbg(...) (static_cast<void>(0))
#endif

int main()
{
	int n, q;
	cin >> n >> q;
	vector<vector<pair<int, int>>> I(n);
	vector<int> imos(1e5+5);
	rep(i,q){
		int s, l ,r;
		cin >> s >> l >> r;
		--s;
		I[s].emplace_back(l,r);
		imos[l]++;
		imos[r]--;
	}
	vector<lb> sum(1e5+5);
	for(int i=0;i<=1e5+4;i++){
		imos[i+1] += imos[i];
	}
	for(int i=0;i<=1e5+4;i++){
		sum[i+1] += sum[i];
		if(imos[i]!=0){
			sum[i+1] += (lb)1/imos[i];
		}
	}
	for(int i=0;i<=10;i++){
		dbg(sum[i]);
	}
	vector<lb> ans(n);
	rep(i,n){
		for(auto [l, r] : I[i]){
			ans[i] += sum[r] - sum[l]; 
		}
	}
	cout << fixed << setprecision(16);
	rep(i,n){
		cout<<ans[i]<<endl;
	}
	return 0;
}