Submission #524110

#	Time	Username	Problem	Language	Result	Execution time	Memory
524110		RaresFelix	Martian DNA (IOI16_dna)	C++17	0 / 100	13 ms	460 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, st);
    for (int i = 1; i <= n - primsol.size(); ++i)
        if (make_test("0" + primsol)) primsol = "0" + primsol;
        else primsol = "1" + primsol;
    return primsol;
}                       

Compilation message (stderr)

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)
      |                     ~~^~~~~~~~~~~~~~~~~~~~~
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