Submission #773325

#	Time	Username	Problem	Language	Result	Execution time	Memory
773325		TheSahib	Password (RMI18_password)	C++14	100 / 100	209 ms	508 KiB

password

#include <bits/stdc++.h>
 
#define ll long long
#define pii pair<int, int>
 
using namespace std;
 
int query(string s);

string merge(string s1, string s2){
    int p = 0;
    string ans = s1;
    string z = "";
    for (int i = 0; i <= ans.size() && p < s2.size(); i++)
    {
        z = ans;
        z.insert(z.begin() + i, s2[p]);
        int b = query(z);
        if(b == z.size()){
            ans = z;
            p++;
        }
    }
    return ans;
}

bool comp(string& a, string& b){
    return a.size() > b.size();
}
 
string guess(int n, int s){
    vector<string> ss;
    for (int c = 'a'; c < 'a' + s; c++)
    {
        string a;
        for (int i = 0; i < n; i++)
        {
            a += c;
        }
        int b = query(a);
        a.erase(a.begin() + b, a.end());
        if(a.empty()) continue;
        ss.push_back(a);
    }
    while(ss.size() != 1){
        sort(ss.begin(), ss.end(), comp);
        string a = merge(ss[ss.size() - 1], ss[ss.size() - 2]);
        ss.pop_back();
        ss.pop_back();
        ss.push_back(a);
    }
    
    return ss[0];
}

Compilation message (stderr)

password.cpp: In function 'std::string merge(std::string, std::string)':
password.cpp:14:23: 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 <= ans.size() && p < s2.size(); i++)
      |                     ~~^~~~~~~~~~~~~
password.cpp:14:42: 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 <= ans.size() && p < s2.size(); i++)
      |                                        ~~^~~~~~~~~~~
password.cpp:19:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |         if(b == z.size()){
      |            ~~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 30 / 30
• Subtask 5: 20 / 20