제출 #524105

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
524105		RaresFelix	Martian DNA (IOI16_dna)	C++17	0 / 100	12 ms	376 KiB

dna

#include "dna.h"

#include <cstdlib>

using namespace std;

string analyse(int n, int t) {
    string primsol = "";
    for (int i = 1; i <= n; ++i)
        if (make_test(primsol + "0"))
            primsol += "0";
        else
            primsol += "1";
    int st = 1, dr = n, mij;
    while (st < dr) {
        mij = (st + dr + 1) / 2;
        if (make_test(primsol.substr(0, mij))) st = mij;
        else dr = mij - 1;
    }
    primsol = primsol.substr(0, mij);
    for (int i = 1; i <= n - primsol.size(); ++i)
        if (make_test("0" + primsol)) primsol = "0" + primsol;
        else primsol = "1" + primsol;
    return primsol;
}                       

컴파일 시 표준 에러 (stderr) 메시지

dna.cpp: In function 'std::string analyse(int, int)':
dna.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i = 1; i <= n - primsol.size(); ++i)
      |                     ~~^~~~~~~~~~~~~~~~~~~~~
dna.cpp:20:36: warning: 'mij' may be used uninitialized in this function [-Wmaybe-uninitialized]
   20 |     primsol = primsol.substr(0, mij);
      |                                    ^
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: 0 / 11
• Subtask 2: 0 / 25
• Subtask 3: 0 / 64