Submission #33852

# Submission time Handle Problem Language Result Execution time Memory
33852 2017-11-03T09:14:08 Z nickyrio Martian DNA (IOI16_dna) C++14
100 / 100
13 ms 2020 KB
#include "dna.h"

#include <cstdlib>

using namespace std;

string add(string st, char c, int len) {
    for (int i = 0; i<len; i++) st.push_back(c);
    return st;
}

string analyse(int n, int t) {
    string now;
    now.clear();
    int l = 1;
    int r = n;
    int cur = 0;
    while (l <= r) {
        int m = (l + r) >> 1;
        if (make_test(add(now, '1', m))) {
            cur = m;
            l = m + 1;
        } else r = m - 1;
    }
    if (cur == 0) return add(now, '0', n);
    now = add(now, '1', cur);
    int cnt = 0;
    while (cnt <= cur) {
        if (make_test(now + '0')) {
            cnt = 0;now.push_back('0');
        }
        else {
            cnt++; now.push_back('1');
        }
    }
    int suffix = cur;
    l = cur + 1;
    r = now.size();
    while (l <= r) {
        int m = (l + r) >> 1;
        if (make_test(now.substr(0, m))) {
            suffix = m;
            l = m + 1;
        } else r = m - 1;
    }
    now = now.substr(0, suffix);
    while (now.size() < n) {
        if (make_test('1' + now)) now = '1' + now;
        else now = '0' + now;
    }
    return now;
}

Compilation message

dna.cpp: In function 'std::__cxx11::string analyse(int, int)':
dna.cpp:47:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while (now.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()) {
             ^
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2020 KB Output is correct
2 Correct 0 ms 2020 KB Output is correct
3 Correct 0 ms 2020 KB Output is correct
4 Correct 0 ms 2020 KB Output is correct
5 Correct 0 ms 2020 KB Output is correct
6 Correct 0 ms 2020 KB Output is correct
7 Correct 0 ms 2020 KB Output is correct
8 Correct 0 ms 2020 KB Output is correct
9 Correct 0 ms 2020 KB Output is correct
10 Correct 0 ms 2020 KB Output is correct
11 Correct 0 ms 2020 KB Output is correct
12 Correct 0 ms 2020 KB Output is correct
13 Correct 0 ms 2020 KB Output is correct
14 Correct 0 ms 2020 KB Output is correct
15 Correct 0 ms 2020 KB Output is correct
16 Correct 0 ms 2020 KB Output is correct
17 Correct 0 ms 2020 KB Output is correct
18 Correct 0 ms 2020 KB Output is correct
19 Correct 0 ms 2020 KB Output is correct
20 Correct 0 ms 2020 KB Output is correct
21 Correct 0 ms 2020 KB Output is correct
22 Correct 0 ms 2020 KB Output is correct
23 Correct 0 ms 2020 KB Output is correct
24 Correct 0 ms 2020 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2020 KB Output is correct
2 Correct 0 ms 2020 KB Output is correct
3 Correct 0 ms 2020 KB Output is correct
4 Correct 0 ms 2020 KB Output is correct
5 Correct 0 ms 2020 KB Output is correct
6 Correct 0 ms 2020 KB Output is correct
7 Correct 0 ms 2020 KB Output is correct
8 Correct 0 ms 2020 KB Output is correct
9 Correct 0 ms 2020 KB Output is correct
10 Correct 0 ms 2020 KB Output is correct
11 Correct 0 ms 2020 KB Output is correct
12 Correct 0 ms 2020 KB Output is correct
13 Correct 0 ms 2020 KB Output is correct
14 Correct 0 ms 2020 KB Output is correct
15 Correct 0 ms 2020 KB Output is correct
16 Correct 0 ms 2020 KB Output is correct
17 Correct 0 ms 2020 KB Output is correct
18 Correct 0 ms 2020 KB Output is correct
19 Correct 0 ms 2020 KB Output is correct
20 Correct 0 ms 2020 KB Output is correct
21 Correct 0 ms 2020 KB Output is correct
22 Correct 0 ms 2020 KB Output is correct
23 Correct 0 ms 2020 KB Output is correct
24 Correct 0 ms 2020 KB Output is correct
25 Correct 0 ms 2020 KB Output is correct
26 Correct 0 ms 2020 KB Output is correct
27 Correct 0 ms 2020 KB Output is correct
28 Correct 0 ms 2020 KB Output is correct
29 Correct 0 ms 2020 KB Output is correct
30 Correct 0 ms 2020 KB Output is correct
31 Correct 0 ms 2020 KB Output is correct
32 Correct 0 ms 2020 KB Output is correct
33 Correct 0 ms 2020 KB Output is correct
34 Correct 0 ms 2020 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2020 KB Output is correct
2 Correct 0 ms 2020 KB Output is correct
3 Correct 0 ms 2020 KB Output is correct
4 Correct 0 ms 2020 KB Output is correct
5 Correct 0 ms 2020 KB Output is correct
6 Correct 0 ms 2020 KB Output is correct
7 Correct 0 ms 2020 KB Output is correct
8 Correct 0 ms 2020 KB Output is correct
9 Correct 0 ms 2020 KB Output is correct
10 Correct 0 ms 2020 KB Output is correct
11 Correct 0 ms 2020 KB Output is correct
12 Correct 0 ms 2020 KB Output is correct
13 Correct 0 ms 2020 KB Output is correct
14 Correct 0 ms 2020 KB Output is correct
15 Correct 0 ms 2020 KB Output is correct
16 Correct 0 ms 2020 KB Output is correct
17 Correct 0 ms 2020 KB Output is correct
18 Correct 0 ms 2020 KB Output is correct
19 Correct 0 ms 2020 KB Output is correct
20 Correct 0 ms 2020 KB Output is correct
21 Correct 0 ms 2020 KB Output is correct
22 Correct 9 ms 2020 KB Output is correct
23 Correct 13 ms 2020 KB Output is correct
24 Correct 13 ms 2020 KB Output is correct
25 Correct 13 ms 2020 KB Output is correct
26 Correct 9 ms 2020 KB Output is correct
27 Correct 6 ms 2020 KB Output is correct
28 Correct 6 ms 2020 KB Output is correct
29 Correct 0 ms 2020 KB Output is correct
30 Correct 13 ms 2020 KB Output is correct
31 Correct 13 ms 2020 KB Output is correct
32 Correct 6 ms 2020 KB Output is correct
33 Correct 6 ms 2020 KB Output is correct
34 Correct 6 ms 2020 KB Output is correct
35 Correct 6 ms 2020 KB Output is correct
36 Correct 6 ms 2020 KB Output is correct
37 Correct 6 ms 2020 KB Output is correct
38 Correct 9 ms 2020 KB Output is correct
39 Correct 9 ms 2020 KB Output is correct