답안 #409710

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
409710 2021-05-21T11:33:27 Z Alma Martian DNA (IOI16_dna) C++17
0 / 100
17 ms 404 KB
#include <bits/stdc++.h>
#include "dna.h"
using namespace std;

string analyse(int n, int t) {

    string z = "", o = "";
    for (int i = 0; i < n; i++) {
        z += '0'; o += '1';
    }
    if (!make_test("0")) return o;
    if (!make_test("1")) return z;

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

    p = z.substr(0, res);
    int l = res, r = res;
    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 280 KB Output is correct
2 Correct 1 ms 292 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 292 KB Output is correct
7 Correct 1 ms 284 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 296 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Incorrect 1 ms 204 KB Wrong DNA
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 288 KB Output is correct
18 Correct 1 ms 288 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 204 KB Output is correct
5 Correct 1 ms 288 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 296 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 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 292 KB Output is correct
19 Incorrect 1 ms 204 KB Wrong DNA
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Incorrect 1 ms 204 KB Wrong DNA
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 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 1 ms 204 KB Output is correct
32 Correct 1 ms 220 KB Output is correct
33 Correct 1 ms 288 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 292 KB Output is correct
5 Correct 1 ms 288 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 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 296 KB Output is correct
15 Correct 1 ms 288 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 332 KB Too many tests
23 Incorrect 17 ms 404 KB Too many tests
24 Incorrect 16 ms 340 KB Too many tests
25 Incorrect 15 ms 384 KB Too many tests
26 Incorrect 13 ms 332 KB Wrong DNA
27 Incorrect 6 ms 332 KB Wrong DNA
28 Correct 7 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 292 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Incorrect 11 ms 332 KB Too many tests
34 Incorrect 11 ms 332 KB Wrong DNA
35 Incorrect 8 ms 392 KB Too many tests
36 Incorrect 9 ms 332 KB Too many tests
37 Incorrect 9 ms 396 KB Too many tests
38 Correct 6 ms 332 KB Output is correct
39 Correct 6 ms 376 KB Output is correct