#include <bits/stdc++.h>
using namespace std;
template <class F> class y_combinator {
    F f;

   public:
    y_combinator(F&& f) : f(std::forward<F>(f)) {}
    template <class... Args> auto operator()(Args&&... args) const { return f(*this, std::forward<Args>(args)...); }
};
using ll = long long;
using ld = long double;
template <class T, class U = std::less<T>> using prique = std::priority_queue<T, std::vector<T>, U>;
template <class T> T floor(T a, T b) noexcept { return a / b - (a % b && (a ^ b) < 0); }
template <class T> T ceil(T a, T b) noexcept { return floor(a + b - 1, b); }
template <class T> bool chmin(T& x, const T& y) noexcept { return (x > y ? x = y, true : false); }
template <class T> bool chmax(T& x, const T& y) noexcept { return (x < y ? x = y, true : false); }
#define overload4(a, b, c, d, e, ...) e
#define rep1(a) for (long long _i = 0; _i < (a); _i++)
#define rep2(i, a) for (long long i = 0; i < (a); i++)
#define rep3(i, a, b) for (long long i = (a); i < (b); i++)
#define rep4(i, a, b, c) for (long long i = (a); i < (b); i += (c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep(i, a, b, c) for (long long i = (a); i > (b); i += (c))
#define all(x) std::begin(x), std::end(x)
#define rall(x) std::rbegin(x), std::rend(x)
#define pb push_back
#ifndef LOCAL
#define debug(...)
#endif

int imos[1 << 17];
ld pref[(1 << 17) + 1];
void run_case() {
    int N, Q;
    cin >> N >> Q;
    vector<vector<pair<int, int>>> A(N);
    rep(i, Q) {
        int I, S, T;
        cin >> I >> S >> T;
        imos[S]++;
        imos[T]--;
        A[--I].pb({S, T});
    }
    rep(i, 1, 1 << 17) imos[i] += imos[i - 1];
    rep(i, 1 << 17) {
        ld t = (imos[i] ? ld(1) / imos[i] : 0);
        pref[i + 1] = pref[i] + t;
    }
    vector<ld> ans(N);
    rep(i, N) {
        for (auto& [l, r] : A[i]) ans[i] += pref[r] - pref[l];
        cout << ans[i] << "\n";
    }
}
int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::fixed(std::cout).precision(16);
    int T = 1;
    while (T--) run_case();
    return 0;
}