fork download 
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main(){
  5.     ios_base::sync_with_stdio(false);
  6.     cin.tie(NULL);
  7.     int n,m;
  8.     cin>>n>>m;
  9.     vector<int>v[n];
  10.     for(int i=0;i<m;i++){
  11.         int x,y;
  12.         cin>>x>>y;
  13.         v[x].push_back(y);
  14.         v[y].push_back(x);
  15.     }
  16.     for(int i=0;i<n;i++){
  17.         cout<<i<<" "<<v[i].size()<<"\n";
  18.     }
  19.     return 0;
  20. }
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin 
5 4 
0 1 
1 2 
2 3 
2 4
stdout 
0 1
1 2
2 3
3 1
4 1
https://ideone.com/GAl157
language:
C++14 (gcc 8.3)
created:
9 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!