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

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, q, m = 100000;
    cin >> n >> q;
    vector<int> imos(m + 1);
    vector<tuple<int,int,int>> a(q);
    for(int i = 0; i < q; i++){
        int t, l, r;
        cin >> t >> l >> r;
        t--;
        a[i] = make_tuple(t, l, r);
        imos[l]++;
        imos[r]--;
    }
    vector<double> s(m + 1);
    for(int i = 0; i < m; i++){
        imos[i + 1] += imos[i];
        s[i + 1] = s[i] + (imos[i] != 0 ? 1.0 / imos[i] : 0);
    }
    vector<double> ans(n);
    for(auto &&tup : a){
        int t, l, r;
        tie(t, l, r) = tup;
        ans[t] += s[r] - s[l];
    }
    cout << fixed << setprecision(15);
    for(int i = 0; i < n; i++){
        cout << ans[i] << '\n';
    }
}