fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. #define ms(s,n) memset(s,n,sizeof(s))
  5. #define all(a) a.begin(),a.end()
  6. #define present(t, x) (t.find(x) != t.end())
  7. #define sz(a) int((a).size())
  8. #define FOR(i, a, b) for (int i = (a); i < (b); ++i)
  9. #define FORd(i, a, b) for (int i = (a) - 1; i >= (b); --i)
  10. #define pb push_back
  11. #define pf push_front
  12. #define fi first
  13. #define se second
  14. #define mp make_pair
  15.  
  16. typedef long long ll;
  17. typedef unsigned long long ull;
  18. typedef long double ld;
  19. typedef pair<int,int> pi;
  20. typedef vector<int> vi;
  21. typedef vector<pi> vii;
  22.  
  23. const int MOD = (int) 1e9+7;
  24. const int INF = (int) 1e9+1;
  25. inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
  26. inline ll lcm(ll a,ll b){return a/gcd(a,b)*b;}
  27.  
  28.  
  29. void FileIO(){
  30. 	freopen("input.txt","r", stdin);
  31. 	freopen("output.txt","w",stdout);
  32. }
  33.  
  34. int main(){
  35. 	//FileIO();
  36. 	ios::sync_with_stdio(false);
  37. 	cin.tie(nullptr);
  38. 	cout.tie(nullptr);
  39. 	int n;cin>>n;
  40. 	int a[n],b[n-1],c[n-2];
  41. 	map<int,int> m,m3;
  42. 	FOR(i,0,n){
  43. 		cin>>a[i];
  44. 		m[a[i]]++;
  45. 	}
  46. 	map<int,int> m2;
  47. 	FOR(i,0,n-1){
  48. 		cin>>b[i];
  49. 		m2[b[i]]++;
  50. 	}
  51. 	FOR(i,0,n){
  52. 		if(m[a[i]]!=m2[a[i]]){
  53. 			cout<<a[i]<<"\n";break;
  54. 		}
  55. 	}
  56. 	FOR(i,0,n-2){
  57. 		cin>>c[i];
  58. 		m3[c[i]]++;
  59. 	}
  60. 	FOR(i,0,n-1){
  61. 		if(m2[b[i]]!=m3[b[i]]){
  62. 			cout<<b[i]<<"\n";break;
  63. 		}
  64. 	}
  65. }
Success #stdin #stdout 0.01s 5512KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0
0
https://ideone.com/3A98pQ
language:
C++14 (gcc 8.3)
created:
3 years 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!