Submission #709205

#	Time	Username	Problem	Language	Result	Execution time	Memory
709205		beepbeepsheep	Password (RMI18_password)	C++17	30 / 100	808 ms	21440 KiB

password

    #include <bits/stdc++.h>
    using namespace std;
    int arr[26];
    int query(string s);
    string build(string s, char c, int pos){
        string ret="";
        for (int i=0;i<pos;i++){
            ret+=s[i];
        }
        ret+=c;
        for (int i=pos;i<s.size();i++){
            ret+=s[i];
        }
        return ret;
    }
    string mrg(string a, string b){
        if (a.size()>b.size()) swap(a,b);
        if (a=="") return b;
        string ans=b;
        int l=0,r=ans.size()+1,m;
        for (int i=0;i<a.size();i++){
            l=0,r=ans.size()+1;
            for (int m=0;m<=r;m++){
                string test=build(ans,a[i],m);
                int res=query(test);
                if (res==test.length()){
                    ans=build(ans,a[i],m);
                    break;
            }
            cerr<<ans<<endl;
        }
    }
    return ans;
    }
    string dup(char c, int n){
        string ret="";
        for (int i=0;i<n;i++) ret+=c;
        return ret;
    }
    string guess(int n, int s){
        for (int i=0;i<s;i++){
            arr[i]=query(dup(i+'a',n));
        }
        string ans="";
        for (int i=0;i<s;i++){
            ans=mrg(ans,dup(i+'a',arr[i]));
        }
        return ans;
    }

Compilation message (stderr)

password.cpp: In function 'std::string build(std::string, char, int)':
password.cpp:11:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |         for (int i=pos;i<s.size();i++){
      |                        ~^~~~~~~~~
password.cpp: In function 'std::string mrg(std::string, std::string)':
password.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=0;i<a.size();i++){
      |                      ~^~~~~~~~~
password.cpp:26:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |                 if (res==test.length()){
      |                     ~~~^~~~~~~~~~~~~~~
password.cpp:20:13: warning: variable 'l' set but not used [-Wunused-but-set-variable]
   20 |         int l=0,r=ans.size()+1,m;
      |             ^
password.cpp:20:32: warning: unused variable 'm' [-Wunused-variable]
   20 |         int l=0,r=ans.size()+1,m;
      |                                ^

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20