/* -*- coding: utf-8 -*-
 *
 * 2462.cc:  No.2462 七人カノン - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

const int MAX_N = 100000;
const int MAX_QN = 100000;
const int MAX_T = 100000;

/* typedef */

/* global variables */

int is[MAX_QN], ss[MAX_QN], ts[MAX_QN];
int cs[MAX_T + 1];
double ess[MAX_T + 1], fs[MAX_N];

/* subroutines */

/* main */

int main() {
  int n, qn;
  scanf("%d%d", &n, &qn);
  for (int i = 0; i < qn; i++)
    scanf("%d%d%d", is + i, ss + i, ts + i), is[i]--;

  for (int i = 0; i < qn; i++) cs[ss[i]]++, cs[ts[i]]--;

  for (int t = 0; t < MAX_T; t++) {
    ess[t + 1] = ess[t] + (cs[t] > 0 ? 1.0 / cs[t] : 0.0);
    cs[t + 1] += cs[t];
  }

  for (int i = 0; i < qn; i++)
    fs[is[i]] += ess[ts[i]] - ess[ss[i]];
  
  for (int i = 0; i < n; i++) printf("%.14lf\n", fs[i]);

  return 0;
}