zoj1061 Web Navigation

1. //zoj1061 Web Navigation

2. //Accepted 1061 C++ 00:00.03 852K

3. #include

4. #include

5. #include

6. using namespace std;

7.  

8. void solve()

9. {

10.        char t[10],s[101][71]={"http://www.acm.org/"};

11.        int cnt=1,pos=0;

12.        while (1){

13.               cin >> t;

14.               if (strcmp(t,"QUIT")==0) break;

15.               if (strcmp(t,"VISIT")==0){

16.                      pos++;

17.                      cin >> s[pos];

18.                      cout << s[pos] << endl;

19.                      cnt = pos+1;

20.               }

21.               if (strcmp(t,"BACK")==0){

22.                      pos--;

23.                      if (pos<0) {

24.                             pos = 0;

25.                             cout << "Ignored" << endl;

26.                      }

27.                      else cout << s[pos] << endl;

28.               }

29.               if (strcmp(t,"FORWARD")==0){

30.                      pos++;

31.                      if (pos

32.                      else {

33.                             pos = cnt-1;

34.                             cout << "Ignored" << endl;

35.                      }

36.               }

37.        }

38. }

39.  

40. int main()

41. {

42. #ifdef ONLINE_JUDGE

43. #else

44.        freopen("1061.txt","r",stdin);

45. #endif

46.        int n;

47.        while (cin >> n)

48.               for (int i=0; i

49.                      if (i>0) cout << endl;

50.                      solve();

51.               }

52. #ifdef ONLINE_JUDGE

53. #else

54.        fclose(stdin);

55. #endif

56.        return 0;

57. }