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  1. #include <iostream>
  2. #include <string>
  3. #include <vector>
  4. using namespace std;
  5.  
  6.  
  7.  
  8. void doit(int N, int add) {
  9.   if (N == 4) {
  10.     cout <<  6+add << " to " << -1+add << endl;
  11.     cout <<  3+add << " to " <<  6+add << endl;
  12.     cout <<  0+add << " to " <<  3+add << endl;
  13.     cout <<  7+add << " to " <<  0+add << endl;
  14.   } else if (N == 5) {
  15.     cout <<  8+add << " to " << -1+add << endl;
  16.     cout <<  3+add << " to " <<  8+add << endl;
  17.     cout <<  6+add << " to " <<  3+add << endl;
  18.     cout <<  0+add << " to " <<  6+add << endl;
  19.     cout <<  9+add << " to " <<  0+add << endl;
  20.   } else if (N == 6) {
  21.     cout << 10+add << " to " << -1+add << endl;
  22.     cout <<  7+add << " to " << 10+add << endl;
  23.     cout <<  2+add << " to " <<  7+add << endl;
  24.     cout <<  6+add << " to " <<  2+add << endl;
  25.     cout <<  0+add << " to " <<  6+add << endl;
  26.     cout << 11+add << " to " <<  0+add << endl;
  27.   } else if (N == 7) {
  28.     cout <<  8+add << " to " << -1+add << endl;
  29.     cout <<  5+add << " to " <<  8+add << endl;
  30.     cout << 12+add << " to " <<  5+add << endl;
  31.     cout <<  3+add << " to " << 12+add << endl;
  32.     cout <<  9+add << " to " <<  3+add << endl;
  33.     cout <<  0+add << " to " <<  9+add << endl;
  34.     cout << 13+add << " to " <<  0+add << endl;
  35.   } else {
  36.     cout << 2*N-2+add << " to " << -1+add << endl;
  37.     cout << 3+add << " to " << 2*N-2+add << endl;
  38.     doit(N-4, 4+add);
  39.     cout << 0+add << " to " << 2*N-5+add << endl;
  40.     cout << 2*N-1+add << " to " << 0+add << endl;
  41.   }
  42. }
  43.  
  44. main() {
  45.   /*s = "....BABABA";       lidx = -3; doit(3);
  46.   s = "..BABABABA";       lidx = -1; doit(4);
  47.   s = "..BABABABABA";     lidx = -1; doit(5);
  48.   s = "..BABABABABABA";   lidx = -1; doit(6);
  49.   s = "..BABABABABABABA"; lidx = -1; doit(7);
  50.   s = "..BABABABABABABABA"; lidx=-1; doit(8);*/
  51.  
  52.   int N;
  53.   while (cin >> N) {
  54.     if (N == 3) {
  55.       cout << "2 to -1" << endl;
  56.       cout << "5 to 2" << endl;
  57.       cout << "3 to -3" << endl;
  58.     } else {
  59.       doit(N, 0);
  60.     }
  61.   }
  62. }
Success #stdin #stdout 0s 16064KB
comments (?)
stdin
copy 
20
stdout
copy 
38 to -1
3 to 38
34 to 3
7 to 34
30 to 7
11 to 30
26 to 11
15 to 26
22 to 15
19 to 22
16 to 19
23 to 16
12 to 23
27 to 12
8 to 27
31 to 8
4 to 31
35 to 4
0 to 35
39 to 0
https://ideone.com/ynF6pM
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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