#include <bits/stdc++.h>
using namespace std;
using namespace chrono;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif

long double op(long double a, long double b)
{
    return a + b;
}
long double e()
{
    return 0;
}

int main()
{
    int64_t n, q;
    cin >> n >> q;
    vector<int64_t> is(q), ss(q), ts(q);
    for (int64_t i = 0; i < q; i++)
    {
        cin >> is[i] >> ss[i] >> ts[i];
        is[i]--;
    }

    vector<int64_t> cnt(100001, 0);
    for (int64_t i = 0; i < q; i++)
    {
        cnt[ss[i]]++;
        cnt[ts[i]]--;
    }
    for (int64_t i = 1; i < cnt.size(); i++)
    {
        cnt[i] += cnt[i - 1];
    }

    vector<long double> xs(cnt.size(), 0);
    for (int64_t i = 0; i < cnt.size(); i++)
    {
        xs[i] = (long double)(1) / cnt[i];
    }

    segtree<long double, op, e> seg(xs);

    vector<long double> ans(n, 0);
    for (int64_t i = 0; i < q; i++)
    {
        ans[is[i]] += seg.prod(ss[i], ts[i]);
    }

    for (auto &&x : ans)
    {
        cout << fixed << setprecision(20) << x << endl;
    }

    return 0;
}