Submission #775275

#	Time	Username	Problem	Language	Result	Execution time	Memory
775275		anha3k25cvp	Martian DNA (IOI16_dna)	C++14	36 / 100	11 ms	460 KiB

dna

#include <bits/stdc++.h>
#include "dna.h"

using namespace std;

string analyse(int n, int t) {
    int type = 0;
    string ans;
    int check = 1;
    while (n) {
        if (check) {
            string S = ans;
            S += '1';
            int add_right = make_test(S);
            if (!add_right) {
                S = ans;
                S += '0';
                int val = make_test(S);
                if (val) {
                    n --;
                    ans += '0';
                }
                else
                    check = 0;
                continue;
            }
            else {
                ans += '1';
                n --;
            }
        }
        else {
            n --;
            string S = "1";
            S += ans;
            int add_left = make_test(S);
            if (add_left)
                ans = '1' + ans;
            else
                ans = '0' + ans;
        }
    }
    return ans;
}

Compilation message (stderr)

dna.cpp: In function 'std::string analyse(int, int)':
dna.cpp:7:9: warning: unused variable 'type' [-Wunused-variable]
    7 |     int type = 0;
      |         ^~~~
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()) {

• Subtask 1: 11 / 11
• Subtask 2: 25 / 25
• Subtask 3: 0 / 64