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  1. #include<bits/stdc++.h>
  2. #include <iostream>
  3. #include <fstream>
  4. using namespace std;
  5.  
  6. // Declaring functions
  7. void inizia(int N, int M);
  8. void sposta(int a, int b);
  9. int controlla(int a, int i);
  10. using namespace std;
  11.  
  12. vector<vector<int>>v;
  13.  
  14. void inizia(int N, int M) {
  15. 	 vector<int>v1;
  16. 	 for(int i=0;i<N;i++){
  17. 	 	v1.push_back(i);
  18. 	 }
  19. 	 v.push_back(v1);
  20. 	 for(int i=1;i<M;i++){
  21. 	 	vector<int>v2;
  22. 	 	v.push_back(v2);
  23. 	 }
  24. }
  25.  
  26. void sposta(int a, int b) {
  27. 	if(v[a].size()>0){
  28. 		v[b].push_back(v[a].back());
  29. 	 	v[a].pop_back();
  30. 	}
  31. }
  32.  
  33. int controlla(int a, int i) {
  34. 	if(v[a].size()<=i){
  35. 		return -1;
  36. 	}else{
  37. 		return v[a][i];
  38. 	}
  39. }
  40.  
  41. int main() {
  42.     // Uncomment the following lines if you want to read/write from files
  43.     // ifstream cin("input.txt");
  44.     // ofstream cout("output.txt");
  45.  
  46.     ios::sync_with_stdio(false);
  47.  
  48.     int N, M, Q;
  49.     cin >> N >> M >> Q;
  50.  
  51.     inizia(N, M);
  52.  
  53.     for (int i = 0; i < Q; i++) {
  54.         char t;
  55.         int a, b;
  56.         cin >> t >> a >> b;
  57.         if (t == 's') {
  58.             sposta(a, b);
  59.         } else {
  60.             cout << controlla(a, b) << '\n';
  61.         }
  62.     }
  63.  
  64.     return 0;
  65. }
  66.  
  67.  
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
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3 3 2
s 0 1
c 1 0
stdout
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2
https://ideone.com/G6sUhV
language:
C++ (gcc 8.3)
created:
16 hours ago
visibility:
public

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