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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int x[2001][2001];
  6.  
  7. int main() {
  8. 	int n;
  9. 	cin>>n;
  10. 	int move;
  11. 	int xPos=1001, yPos=1001;
  12. 	for(int i=0; i<n; i++) {
  13. 		cin>>move;
  14. 		if(x[xPos][yPos]==1) { 
  15. 			cout<<i;
  16. 			return 0;
  17. 		}
  18. 		else x[xPos][yPos]=1;
  19. 		if(move==1) {
  20. 			xPos--;
  21. 			yPos++;
  22. 		}
  23. 		if(move==2) {
  24. 			yPos++;
  25. 		}
  26. 		if(move==3) {
  27. 			xPos++;
  28. 			yPos++;
  29. 		}
  30. 		if(move==4) {
  31. 			xPos++;
  32. 		}
  33. 		if(move==5) {
  34. 			xPos++;
  35. 			yPos--;
  36. 		}
  37. 		if(move==6) {
  38. 			yPos--;
  39. 		}
  40. 		if(move==7) {
  41. 			xPos--;
  42. 			yPos--;
  43. 		}
  44. 		if(move==8) {
  45. 			xPos--;
  46. 		}
  47. 	}
  48. 	cout<<"Ok"<<endl<<abs(xPos-1001)+abs(yPos-1001);
  49. 	return 0;
  50. }
Success #stdin #stdout 0s 4312KB
comments (?)
stdin
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12 2 3 4 1 3 2 5 6 8 2 1 7
stdout
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10
https://ideone.com/qel0Ld
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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