Submission #47528

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
47528	2018-05-05T02:40:59 Z	ngkan146	Crazy old lady (IZhO13_crazy)	C++11	100 / 100	46 ms	1236 KB

crazy

#include <bits/stdc++.h>
using namespace std;
int test, n, a[1005];
int main(){
    scanf("%d",&test);
    while(test--){
        scanf("%d",&n);
        for(int i=1;i<=n;i++)
            scanf("%d",&a[i]);

        vector <int> ans;

        for(int oldLady=1;oldLady<=n;oldLady++){
            vector <int> peopleId;
            peopleId.push_back(-1);
            peopleId.push_back(oldLady);
            for(int i=1;i<=n;i++)   if (i != oldLady)   peopleId.push_back(i);
            //cerr << oldLady << endl;

            int curSeat = a[1];
            bool ok = 1;
            for(int i=2;i<=n;i++){
                //cerr << i << ' ' << curSeat << endl;
                if (peopleId[i] == curSeat){
                    curSeat = a[i];
                }
                else{
                    if (a[i] != peopleId[i]){
                        ok = 0;
                        break;
                    }
                }
            }
            if (ok) ans.push_back(oldLady);
        }
        assert(ans.size());
        if (ans.size() > 1) cout << 0 << '\n';
        else cout << ans[0] << '\n';
    }
}

Compilation message

crazy.cpp: In function 'int main()':
crazy.cpp:5:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&test);
     ~~~~~^~~~~~~~~~~~
crazy.cpp:7:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&n);
         ~~~~~^~~~~~~~~
crazy.cpp:9:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&a[i]);
             ~~~~~^~~~~~~~~~~~

Subtask #1

100.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	2 ms	544 KB	Output is correct
4	Correct	2 ms	784 KB	Output is correct
5	Correct	2 ms	904 KB	Output is correct
6	Correct	2 ms	904 KB	Output is correct
7	Correct	4 ms	904 KB	Output is correct
8	Correct	6 ms	904 KB	Output is correct
9	Correct	8 ms	904 KB	Output is correct
10	Correct	10 ms	932 KB	Output is correct
11	Correct	11 ms	968 KB	Output is correct
12	Correct	14 ms	1112 KB	Output is correct
13	Correct	16 ms	1112 KB	Output is correct
14	Correct	21 ms	1168 KB	Output is correct
15	Correct	22 ms	1168 KB	Output is correct
16	Correct	41 ms	1168 KB	Output is correct
17	Correct	29 ms	1168 KB	Output is correct
18	Correct	40 ms	1168 KB	Output is correct
19	Correct	39 ms	1196 KB	Output is correct
20	Correct	46 ms	1236 KB	Output is correct