답안 #406481

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
406481 2021-05-17T16:20:58 Z Alma Martian DNA (IOI16_dna) C++17
0 / 100
17 ms 400 KB
#include <bits/stdc++.h>
#include "dna.h"
using namespace std;

string analyse(int n, int t) {
    string z = "", o = "", s;
    for (int i = 0; i < n; i++) {
        z += '0'; o += '1';
    }
    if (!make_test("0")) return o;
    if (!make_test("1")) return z;

    int lo = 0, mid, res = 0, hi = n;
    while (lo <= hi) {
        mid = (lo+hi) / 2;
        s = z.substr(0, mid);
        if (make_test(s)) {
            res = mid;
            lo = mid+1;
        } else {
            hi = mid-1;
        }
    }

    int l = 0, r = 0;
    string p = "";
    while ((int)p.size() < n) {
        if (r < res && make_test(p + '0')) {
            p += '0'; r++;
        } else {
            p += '1'; r = 0;
        }
        if (l < res && make_test('0' + p)) {
            p = '0' + p; l++;
        } else {
            p = '1' + p; l = 0;
        }

        if (!make_test(p)) {
            int m = (int)p.size();
            if (make_test(p.substr(1, m-1))) {
                p = p.substr(1, m-1);
                while (true) {
                    if ((int)p.size() == n) return p;
                    if (r < res && make_test(p + '0')) {
                        p += '0'; r++;
                    } else {
                        p += '1'; r = 0;
                    }
                }
            } else {
                p = p.substr(0, m-1);
                while (true) {
                    if ((int)p.size() == n) return p;
                    if (l < res && make_test('0' + p)) {
                        p = '0' + p; l++;
                    } else {
                        p = '1' + p; l = 0;
                    }
                }
            }
        }
    } return p;
} 

Compilation message

grader.cpp: In function 'bool make_test(std::string)':
grader.cpp:14:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for (int i = 0; i < p.size(); i++) {
      |                  ~~^~~~~~~~~~
grader.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |  for (int i = 1; i <= ss.size(); i++) {
      |                  ~~^~~~~~~~~~~~
grader.cpp:28:13: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |   if (pr[i] == p.size()) {
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Incorrect 1 ms 296 KB Wrong DNA
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 2 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 288 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Incorrect 1 ms 204 KB Wrong DNA
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 2 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Incorrect 1 ms 204 KB Wrong DNA
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 292 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Incorrect 1 ms 204 KB Wrong DNA
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 292 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Incorrect 10 ms 292 KB Too many tests
23 Incorrect 17 ms 332 KB Too many tests
24 Incorrect 11 ms 296 KB Too many tests
25 Incorrect 15 ms 332 KB Too many tests
26 Incorrect 15 ms 348 KB Wrong DNA
27 Correct 7 ms 400 KB Output is correct
28 Correct 6 ms 332 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 9 ms 332 KB Output is correct
32 Incorrect 9 ms 332 KB Too many tests
33 Incorrect 11 ms 356 KB Too many tests
34 Incorrect 10 ms 332 KB Wrong DNA
35 Incorrect 8 ms 332 KB Too many tests
36 Incorrect 8 ms 364 KB Too many tests
37 Incorrect 9 ms 332 KB Too many tests
38 Incorrect 8 ms 288 KB Too many tests
39 Incorrect 11 ms 332 KB Too many tests