oj.uz

Submission #314573

# Submission time Handle Problem Language Result Execution time Memory
314573 2020-10-20T10:33:56 Z Jarif_Rahman Combo (IOI18_combo) C++17
0 / 100
 1 ms 200 KB 
#include "combo.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
str guess_sequence(int n){
    str s = "";
    int r = 0;
    if(press("AB") > r){
        if(press("A") > r) s+="A";
        else s+="B";
    }
    else{
        if(press("X") > r) s+="X";
        else s+="Y";
    }
    r++;
    if(n == 1) return s;
    vector<str> ss; for(char c: "ABXY") if(c != s[0]) ss.pb(str(1, c));
    r++;
    while(s.size() < n - 1){
        int x = press(s+ss[0] + s+ss[1]+ss[0] + s+ss[1]+ss[1] + s+ss[1]+ss[2]);
        x-=s.size();
        if(x == 0) s+=ss[2];
        else if(x == 1) s+=ss[0];
        else s+=ss[1];
        r++;
    }
    if(press(s+"AB") > r){
        if(press(s+"A") > r) s+="A";
        else s+="B";
    }
    else{
        if(press(s+"X") > r) s+="X";
        else s+="Y";
    }
    r++;
    return s;
}

Compilation message

combo.cpp: In function 'str guess_sequence(int)':
combo.cpp:24:20: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 |     while(s.size() < n - 1){
      |           ~~~~~~~~~^~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Wrong Answer: wrong guess.
2 Halted 0 ms 0 KB -

Subtask #2
0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 0 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Incorrect 0 ms 200 KB Wrong Answer: wrong guess.
6 Halted 0 ms 0 KB -