Submission #794824

#	Time	Username	Problem	Language	Result	Execution time	Memory
794824		bane	Martian DNA (IOI16_dna)	C++17	36 / 100	9 ms	488 KiB

dna

#include <bits/stdc++.h>
#include "dna.h"
using namespace std;


string analyse(int n, int t) {

    int oi = 0, io = 0, ii = 0, oo = 0;
    if (n == 1){
        if (make_test("1"))return "1";
        else return "0";
    }
    oi = make_test("01");
    io = make_test("10");
    ii = make_test("11");
    oo = make_test("00");
    string ans = "";
    
    if (oi){
        ans += "01";
        --t;
    }else if(ii){
        --t;
        ans += "11";
    }
    else if(oo){
        ans +="00";
        --t;
    }
    else{
        --t;
         ans += "10";
    }
    while(t > 0 && (int)ans.size() < n){
        string ask1,ask2,ask3,ask4;
        //cout << ans << endl;
        if (ans.size() + 2 <= n){
            if(oi)ask1 = ans + "01";
            else ask1 = "4";

            if(io)ask2 = ans +  "10";
            else ask2 = "4";
            
            if(ii)ask3 = ans +  "11";
            else ask3 = "4";
            
            if(oo)ask4 = ans +  "00";
            else ask4 = "4";
            
            if (ask1 != "4"){
                --t;
                if (make_test(ask1)){
                    ans = ask1;
                    continue;
                }
            }

            if (ask2 != "4"){
                --t;
                if (make_test(ask2)){
                    ans = ask2;
                    continue;
                }
            }

            if (ask3 != "4"){
                --t;
                if (make_test(ask3)){
                    ans = ask3;
                    continue;
                }
            }

            if (ask4 != "4"){
                --t;
                if (make_test(ask4)){
                    ans = ask4;
                    continue;
                }
            }
        }
        //one element to the right
       // cout << "ttt";
        --t;
        if (make_test(ans + '1')){
            ans += '1';
            break;
        }else if (make_test(ans + '0')){
            ans += '0';
        }
        --t;
        break;
    }
    while(t > 0 && (int)ans.size() < n){
     //   cout << t << endl;
        string ask1,ask2,ask3,ask4;
      //  cout << ans << endl;
        if (ans.size() + 2 <= n){
            if(oi)ask1 = "01" + ans;
            else ask1 = "4";

            if(io)ask2 = "10" + ans;
            else ask2 = "4";
            
            if(ii)ask3 = "11" + ans;
            else ask3 = "4";
            
            if(oo)ask4 = "00" + ans;
            else ask4 = "4";
            
            if (ask1 != "4"){--t;
                if (make_test(ask1)){
                    ans = ask1;
                    
                    continue;
                }
            }

            if (ask2 != "4"){--t;
                if (make_test(ask2)){
                    ans = ask2;
                    
                    continue;
                }
            }

            if (ask3 != "4"){--t;
                if (make_test(ask3)){
                    ans = ask3;
                    
                    continue;
                }
            }

            if (ask4 != "4"){--t;
                if (make_test(ask4)){
                    ans = ask4;
                    
                    continue;
                }
            }
        }
        //one element to the right
        --t;
        if (make_test('1' + ans)){
            ans = '1' + ans;
        }else{
            ans = '0' + ans;
        }
        break;
    }
    return ans;
}                       

Compilation message (stderr)

dna.cpp: In function 'std::string analyse(int, int)':
dna.cpp:37:28: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   37 |         if (ans.size() + 2 <= n){
      |             ~~~~~~~~~~~~~~~^~~~
dna.cpp:98:28: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   98 |         if (ans.size() + 2 <= 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: 11 / 11
• Subtask 2: 25 / 25
• Subtask 3: 0 / 64