// (⁠◕⁠ᴗ⁠◕⁠✿⁠)
 
#include <bits/stdc++.h>
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define srep(i, s, n) for (ll i = s; i < (n); i++)
#define len(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
using namespace std;
template<typename T> using vc = vector<T>;
template<typename T> using vv = vc<vc<T>>;
using vi = vc<int>;using vvi = vv<int>; using vvvi = vv<vi>;
using ll = long long;using vl = vc<ll>;using vvl = vv<ll>; using vvvl = vv<vl>;
using ld = long double; using vld = vc<ld>; using vvld = vc<vld>; using vvvld = vc<vvld>;
using uint = unsigned int;
using ull = unsigned long long;
const ld pi = 3.141592653589793;
const int inf = 0x3f3f3f3f;
const ll INF = 0x3f3f3f3f3f3f3f3f;
// const ll mod = 1000000007;
const ll mod = 998244353;
inline bool inside(long long y, long long x, long long H, long long W) {return 0 <= (y) and (y) < (H) and 0 <= (x) and (x) < (W); }

#define debug(var)  do{std::cout << #var << " : \n";view(var);}while(0)
template<typename T> void view(T e){cout << e << endl;}
template<typename T> void view(const vc<T>& v){for(const auto& e : v){ cout << e << " "; } cout << endl;}
template<typename T> void view(const vv<T>& vv){ for(const auto& v : vv){ view(v); } }

int op1(int a, int b){return a + b;};
int e1(){return 0;};

ld op2(ld a, ld b){return a + b;};
ld e2(){return 0;};

template<class T, T (*op)(T, T), T (*e)()> struct segtree{
    public : 
        segtree(int n) : _n(n){
            depth = 0;
            while ((1 << depth) < _n) depth++;
            size = 1 << depth;
            tree = vc<T>(2 * size, e());
        }

        void set(int p, T x){
            assert (0 <= p && p < _n);
            p += size;
            tree[p] = x;
            for (int i = 0; i < depth; i++){
                p >>= 1;
                tree[p] = op(tree[2 * p], tree[2 * p + 1]);
            }
            return;
        }

        T get(int p){
            assert(0 <= p && p < _n);
            return tree[p + size];
        }

        T prod(int l, int r){
            assert (0 <= l && l < r && r <= _n);
            T nl = e(), nr = e();
            l += size;
            r += size;
            while(l < r){
                if (l & 1) nl = op(nl, tree[l++]);
                if (r & 1) nr = op(nr, tree[--r]);
                l >>= 1;
                r >>= 1;
            }
            return op(nl, nr);
        }
    
    private : 
        int _n, depth, size;
        vc<T> tree;
};

int main(){
    int N, Q; cin >> N >> Q;
    vv<pair<int, int>> query(N);
    segtree<int, op1, e1> seg1(100100);
    rep(i, Q){
        int id, s, t; cin >> id >> s >> t;
        id--;
        query[id].push_back({s, t});
        seg1.set(s, seg1.get(s) + 1);
        seg1.set(t, seg1.get(t) - 1);
    }
    segtree<ld, op2, e2> seg2(100100);
    rep(i, 100010) seg2.set(i, (ld)1 / (ld)seg1.prod(0, i + 1));
    vld ret(N);
    rep(i, N) for (auto [s, t] : query[i]) ret[i] += seg2.prod(s, t);
    for (auto x : ret) cout << fixed << setprecision(16) << x << endl;
}