#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long ull;
typedef long double ld;
int dx[8] = { 1, 0, -1, 0, 1, 1, -1, -1 }, dy[8] = { 0, 1, 0, -1, 1, -1, 1, -1 };
const long long mod = 998244353;
const ll inf = 1LL << 60;
const int INF = 5e8;

int main()
{
    int n, q;
    cin >> n >> q;
    vector<vector<pair<int, int>>> v(n);
    vector<int> num(100010);
    while (q--) {
        int i, l, r;
        cin >> i >> l >> r;
        i--;
        v[i].emplace_back(l, r);
        num[l]++;
        num[r]--;
    }

    for (int i = 0; i <= 100000; i++)
        num[i + 1] += num[i];

    vector<ld> s(100010);
    for (int i = 0; i <= 100000; i++) {
        if (num[i] == 0)
            continue;
        s[i] = (ld)1 / num[i];
    }

    vector<ld> sm(100010);
    for (int i = 0; i <= 100000; i++) {
        sm[i + 1] = sm[i] + s[i];
    }

    vector<ld> ans(n);
    for (int i = 0; i < n; i++) {
        for (auto [l, r] : v[i]) {
            ans[i] += sm[r] - sm[l];
        }
    }

    for (int i = 0; i < n; i++) {
        printf("%.18Lf", ans[i]);
        cout << endl;
    }
}