oj.uz

Submission #28084

# Submission time Handle Problem Language Result Execution time Memory
28084 2017-07-15T10:18:54 Z abcdef6199 Martian DNA (IOI16_dna) C++
100 / 100
 13 ms 2024 KB 
#include "dna.h"
#include <bits/stdc++.h>
using namespace std;

struct Random {
    int mul, add, mod, cur;
    Random() {
        mul = 1234567891;
        add = 126126727;
        mod = 1281231167;
        cur = 0;
    }
    int NextRand(int n) {
        cur = ((long long) cur * mul + add) % mod;
        return cur % n;
    }
} Random;

string analyse(int n, int t) {
    string ans = "";
    int cur = 0;
    for (int i = 1; i <= n; ++i) {
        int x = Random.NextRand(2);
        if (make_test(ans + char(x + 48))) {
            ans += char(x + 48);
            cur = 0;
        }
        else {
            ans += char(1 - x + 48);
            cur++;
        }
        if (cur == 19) break;
    }
    int l = (int) ans.size() - cur + 1, r = (int) ans.size(), f = (int) ans.size() - cur;
    while (l <= r) {
        int mid = (l + r) >> 1;
        if (make_test(ans.substr(0, mid))) {
            f = mid;
            l = mid + 1;
        }
        else r = mid - 1;
    }
    ans = ans.substr(0, f);

    while (ans.size() < n) {
        if (make_test("0" + ans)) ans = "0" + ans;
        else ans = "1" + ans;
    }
    return ans;
}

Compilation message

dna.cpp: In function 'std::__cxx11::string analyse(int, int)':
dna.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while (ans.size() < n) {
                       ^
grader.cpp: In function 'bool make_test(std::__cxx11::string)':
grader.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < p.size(); i++) {
                    ^
grader.cpp:23:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 1; i <= ss.size(); i++) {
                    ^
grader.cpp:28:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if (pr[i] == p.size()) {
             ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2024 KB Output is correct
2 Correct 0 ms 2024 KB Output is correct
3 Correct 0 ms 2024 KB Output is correct
4 Correct 0 ms 2024 KB Output is correct
5 Correct 0 ms 2024 KB Output is correct
6 Correct 0 ms 2024 KB Output is correct
7 Correct 0 ms 2024 KB Output is correct
8 Correct 0 ms 2024 KB Output is correct
9 Correct 0 ms 2024 KB Output is correct
10 Correct 0 ms 2024 KB Output is correct
11 Correct 0 ms 2024 KB Output is correct
12 Correct 0 ms 2024 KB Output is correct
13 Correct 0 ms 2024 KB Output is correct
14 Correct 0 ms 2024 KB Output is correct
15 Correct 0 ms 2024 KB Output is correct
16 Correct 0 ms 2024 KB Output is correct
17 Correct 0 ms 2024 KB Output is correct
18 Correct 0 ms 2024 KB Output is correct
19 Correct 0 ms 2024 KB Output is correct
20 Correct 0 ms 2024 KB Output is correct
21 Correct 0 ms 2024 KB Output is correct
22 Correct 0 ms 2024 KB Output is correct
23 Correct 0 ms 2024 KB Output is correct
24 Correct 0 ms 2024 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2024 KB Output is correct
2 Correct 0 ms 2024 KB Output is correct
3 Correct 0 ms 2024 KB Output is correct
4 Correct 0 ms 2024 KB Output is correct
5 Correct 0 ms 2024 KB Output is correct
6 Correct 0 ms 2024 KB Output is correct
7 Correct 0 ms 2024 KB Output is correct
8 Correct 0 ms 2024 KB Output is correct
9 Correct 0 ms 2024 KB Output is correct
10 Correct 0 ms 2024 KB Output is correct
11 Correct 0 ms 2024 KB Output is correct
12 Correct 0 ms 2024 KB Output is correct
13 Correct 0 ms 2024 KB Output is correct
14 Correct 0 ms 2024 KB Output is correct
15 Correct 0 ms 2024 KB Output is correct
16 Correct 0 ms 2024 KB Output is correct
17 Correct 0 ms 2024 KB Output is correct
18 Correct 0 ms 2024 KB Output is correct
19 Correct 0 ms 2024 KB Output is correct
20 Correct 0 ms 2024 KB Output is correct
21 Correct 0 ms 2024 KB Output is correct
22 Correct 0 ms 2024 KB Output is correct
23 Correct 0 ms 2024 KB Output is correct
24 Correct 0 ms 2024 KB Output is correct
25 Correct 0 ms 2024 KB Output is correct
26 Correct 0 ms 2024 KB Output is correct
27 Correct 0 ms 2024 KB Output is correct
28 Correct 0 ms 2024 KB Output is correct
29 Correct 0 ms 2024 KB Output is correct
30 Correct 0 ms 2024 KB Output is correct
31 Correct 0 ms 2024 KB Output is correct
32 Correct 0 ms 2024 KB Output is correct
33 Correct 0 ms 2024 KB Output is correct
34 Correct 0 ms 2024 KB Output is correct

Subtask #3
64.0 / 64.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2024 KB Output is correct
2 Correct 0 ms 2024 KB Output is correct
3 Correct 0 ms 2024 KB Output is correct
4 Correct 0 ms 2024 KB Output is correct
5 Correct 0 ms 2024 KB Output is correct
6 Correct 0 ms 2024 KB Output is correct
7 Correct 0 ms 2024 KB Output is correct
8 Correct 0 ms 2024 KB Output is correct
9 Correct 0 ms 2024 KB Output is correct
10 Correct 0 ms 2024 KB Output is correct
11 Correct 0 ms 2024 KB Output is correct
12 Correct 0 ms 2024 KB Output is correct
13 Correct 0 ms 2024 KB Output is correct
14 Correct 0 ms 2024 KB Output is correct
15 Correct 0 ms 2024 KB Output is correct
16 Correct 0 ms 2024 KB Output is correct
17 Correct 0 ms 2024 KB Output is correct
18 Correct 0 ms 2024 KB Output is correct
19 Correct 0 ms 2024 KB Output is correct
20 Correct 0 ms 2024 KB Output is correct
21 Correct 0 ms 2024 KB Output is correct
22 Correct 13 ms 2024 KB Output is correct
23 Correct 6 ms 2024 KB Output is correct
24 Correct 13 ms 2024 KB Output is correct
25 Correct 6 ms 2024 KB Output is correct
26 Correct 9 ms 2024 KB Output is correct
27 Correct 6 ms 2024 KB Output is correct
28 Correct 6 ms 2024 KB Output is correct
29 Correct 6 ms 2024 KB Output is correct
30 Correct 6 ms 2024 KB Output is correct
31 Correct 6 ms 2024 KB Output is correct
32 Correct 6 ms 2024 KB Output is correct
33 Correct 6 ms 2024 KB Output is correct
34 Correct 6 ms 2024 KB Output is correct
35 Correct 6 ms 2024 KB Output is correct
36 Correct 6 ms 2024 KB Output is correct
37 Correct 6 ms 2024 KB Output is correct
38 Correct 6 ms 2024 KB Output is correct
39 Correct 9 ms 2024 KB Output is correct