Submission #403965

#	Time	Username	Problem	Language	Result	Execution time	Memory
403965		Iwanttobreakfree	Martian DNA (IOI16_dna)	C++98	0 / 100	9 ms	716 KiB

dna

#include "dna.h"
#include <string>
#include <cstdlib>
#include <set>
using namespace std;
string analyse(int n, int t){
	int k;
	string str,prueba;
	bool first=false,posz,poso;
	set<string> s;
	while(true){
		
	poso=posz=true;
	if(str.length()==n)return str;
	if(!first){
		
	prueba=str+'0';
	k=prueba.length();	
	for(string x:s){
		int m=x.length();
			if(prueba.substr(k-m-1,m)==x){
				posz=false;
			}
	}
	
	if(make_test(str+'0')&&posz){
		str+='0';
		continue;
	}
	else if(posz)s.insert(str+'0');
	
	prueba=str+'1';
	k=prueba.length();
	for(string x:s){
		int m=x.length();
			if(prueba.substr(k-m-1,m)==x){
				poso=false;
			}
	}
	
	if(make_test(str+'1')&&poso){
		str+='1';
		continue;
	}
	else if(poso)s.insert(str+'1');
	first=true;
}

	if(first){
		
	prueba='0'+str;
	k=prueba.length();
	for(string x:s){
		int m=x.length();
			if(prueba.substr(0,m)==x){
				posz=false;
			}
	}
	
	if(make_test('0'+str)&&posz){
		str='0'+str;
		continue;
	}
	else if(posz)s.insert('0'+str);
	
	prueba='1'+str;
	k=prueba.length();
	for(string x:s){
		int m=x.length();
			if(prueba.substr(0,m)==x){
				poso=false;
			}
	}
	
	if(make_test('1'+str)&&poso){
		str='1'+str;
		continue;
	}
	else if(poso)s.insert('1'+str);
	}
}
}          

Compilation message (stderr)

dna.cpp: In function 'std::string analyse(int, int)':
dna.cpp:14:17: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   14 |  if(str.length()==n)return str;
      |     ~~~~~~~~~~~~^~~
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