Submission #857519

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
857519	2023-10-06T10:33:13 Z	chilinhxyzabc	Cave (IOI13_cave)	C++17	25 / 100	79 ms	524 KB

cave

#include <bits/stdc++.h>
#include "cave.h"
using namespace std; 

void exploreCave(int n) {
    int s[n], d[n];
    for(int i = 0; i < n; i++) {
        s[i] = 0;
        d[i] = -1;
    }
    for(int i = 0; i < n; i++) {
        int curDoor = tryCombination(s);
        if(curDoor == -1)
            break;
        else {
            int l = i, r = n - 1, res;
            while(l <= r) {
                int m = (l + r) / 2;
                s[m] = 1 - s[m];
                int door = tryCombination(s);
                if(curDoor == door) {
                    r = m - 1;
                } else {
                    l = m + 1;
                    res = m;
                }
                s[m] = 1 - s[m];
            }
            d[res] = curDoor;
            s[res] = 1 - s[res];
            i = res;
        }
    }
    for(int i = 0; i < n; i++) {
        if(d[i] != -1)
            continue;
        s[i] = 1 - s[i];
        int door = tryCombination(s);
        d[i] = door;
        s[i] = 1 - s[i];
    }
    answer(s, d);
}

Compilation message

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:11:5: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
   11 |     for(int i = 0; i < n; i++) {
      |     ^~~

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	348 KB	Output is correct
2	Correct	47 ms	348 KB	Output is correct
3	Correct	79 ms	348 KB	Output is correct
4	Correct	50 ms	348 KB	Output is correct
5	Correct	8 ms	348 KB	Output is correct
6	Correct	41 ms	524 KB	Output is correct
7	Correct	8 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	41 ms	348 KB	Output is correct
13	Correct	42 ms	348 KB	Output is correct
14	Correct	41 ms	504 KB	Output is correct

Subtask #2

13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	8 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	8 ms	348 KB	Output is correct
7	Correct	8 ms	348 KB	Output is correct
8	Correct	9 ms	348 KB	Output is correct
9	Correct	8 ms	348 KB	Output is correct
10	Correct	8 ms	348 KB	Output is correct
11	Correct	8 ms	348 KB	Output is correct

Subtask #3

0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Incorrect	1 ms	348 KB	too much calls on tryCombination()
6	Halted	0 ms	0 KB	-

Subtask #4

0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Incorrect	1 ms	348 KB	too much calls on tryCombination()
6	Halted	0 ms	0 KB	-

Subtask #5

0 / 24.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	348 KB	Output is correct
2	Correct	47 ms	348 KB	Output is correct
3	Correct	79 ms	348 KB	Output is correct
4	Correct	50 ms	348 KB	Output is correct
5	Correct	8 ms	348 KB	Output is correct
6	Correct	41 ms	524 KB	Output is correct
7	Correct	8 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	41 ms	348 KB	Output is correct
13	Correct	42 ms	348 KB	Output is correct
14	Correct	41 ms	504 KB	Output is correct
15	Correct	8 ms	344 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	8 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	8 ms	348 KB	Output is correct
21	Correct	8 ms	348 KB	Output is correct
22	Correct	9 ms	348 KB	Output is correct
23	Correct	8 ms	348 KB	Output is correct
24	Correct	8 ms	348 KB	Output is correct
25	Correct	8 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Incorrect	1 ms	348 KB	too much calls on tryCombination()
31	Halted	0 ms	0 KB	-