Submission #1104031

#	Time	Username	Problem	Language	Result	Execution time	Memory
1104031		asdfghjk	Combo (IOI18_combo)	C++14	0 / 100	1 ms	416 KiB

combo

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define all(x) x.begin(), x.end()
#define F first
#define ld long double
#define S second
using namespace std;
const ll N = 5e3 + 5;
const ll NN = 4e5 + 5;
const ll INF = 1e18;
const ll inf = 1e9;
const ll MOD = 1e9 + 7;
int press(std::string p);
string guess_sequence(int n){
    string a = "qwertythjyh";
    string s = "";
    if(press("ABX")==0){
        s = "Y";
        a[1] = 'A';
        a[2] = 'B';
        a[3] = 'X';
    }
    else if(press("ABY") == 0){
        s = "X";
        a[1] = 'A';
        a[2] = 'B';
        a[3] = 'Y';
    }
    else if(press("AXY") == 0){
        s = "B";
        a[1] = 'A';
        a[2] = 'Y';
        a[3] = 'X';
    }
    else{
        s = "A";
        a[1] = 'Y';
        a[2] = 'B';
        a[3] = 'X';
    }
    for(int i = 2;i <= n;i++){
        string d = s;
        d += a[1];
        d += a[2];
        int z = press(d);
        d = s;
        d += a[2];
        d += a[3];
        int  x= press(d);
        if(z == s.size()){
            s += a[3];
        }
        else if(x == s.size()){
            s += a[1];
        }
        else s += a[2];
    }
    return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:51:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |         if(z == s.size()){
      |            ~~^~~~~~~~~~~
combo.cpp:54:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         else if(x == s.size()){
      |                 ~~^~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95