Submission #484376

#	Time	Username	Problem	Language	Result	Execution time	Memory
484376		Carmel_Ab1	Martian DNA (IOI16_dna)	C++17	0 / 100	1096 ms	588 KiB

dna

#include<bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

//using namespace __gnu_pbds;
using namespace std;

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int>vi;
typedef vector<vector<int>>vvi;
typedef vector<ll>vl;
typedef vector<vl> vvl;
typedef pair<int,int>pi;
typedef pair<ll,ll> pl;
typedef vector<pl> vpl;
typedef vector<ld> vld;
typedef pair<ld,ld> pld;
typedef vector<pi> vpi;

//typedef tree<ll, null_type, less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
template<typename T> ostream& operator<<(ostream& os, vector<T>& a){os<<"[";for(int i=0; i<ll(a.size()); i++){os << a[i] << ((i!=ll(a.size()-1)?" ":""));}os << "]\n"; return os;}

#define all(x) x.begin(),x.end()
#define YES out("YES")
#define NO out("NO")
#define out(x){cout << x << "\n"; return;}
#define GLHF ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define print(x){for(auto ait:x) cout << ait << " "; cout << "\n";}
#define pb push_back
#define umap unordered_map

//#include "grader.cpp"
#include "dna.h"
string analyse(int n, int t) {
    string ans="0";
    if(!make_test("0"))
        return string(n,'1');

    while(1) {
        while (ans.size() < n) {
            if (make_test(ans + "0"))
                ans += '0';
            else
                ans += "1";
        }

        int l = 1, r = n, sz = -1;
        while (l <= r) {
            int m = (l + r) / 2;
            if (make_test(ans.substr(0, m - 1)))
                sz = m - 1, l = m + 1;
            else
                r = m - 1;
        }

        char c='0';
        if(ans.size()!=n)
            c='0'+'1'-ans[sz+1];
        ans = ans.substr(0, sz);
        if(ans.size()==n)
            break;
        if(!make_test(ans+c))
            break;
    }
    while(1){
        if(make_test("0"+ans))
            ans="0"+ans;
        else if(make_test("1"+ans))
            ans="1"+ans;
        else
            break;
    }
    assert(ans.size()==n);
    return ans;

}

Compilation message (stderr)

dna.cpp: In function 'std::string analyse(int, int)':
dna.cpp:42:27: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |         while (ans.size() < n) {
      |                ~~~~~~~~~~~^~~
dna.cpp:59:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   59 |         if(ans.size()!=n)
      |            ~~~~~~~~~~^~~
dna.cpp:62:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   62 |         if(ans.size()==n)
      |            ~~~~~~~~~~^~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from dna.cpp:1:
dna.cpp:75:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   75 |     assert(ans.size()==n);
      |            ~~~~~~~~~~^~~
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