oj.uz

Submission #349119

# Submission time Handle Problem Language Result Execution time Memory
349119 2021-01-16T17:37:13 Z spike1236 Combo (IOI18_combo) C++14
0 / 100
 1 ms 200 KB 
#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define ll long long
#define ld long double
#define all(_v) _v.begin(), _v.end()
#define sz(_v) (int)_v.size()
#define pii pair <int, int>
#define pll pair <ll, ll>
#define veci vector <int>
#define vecll vector <ll>


bool check(char x) {
    string s = "";
    s += x;
    int cnt = press(s);
    if(cnt > 1 || !cnt) return 0;
    return 1;
}
string guess_sequence(int n) {
    string cur = "";
    set <char> st;
    st.insert('A');
    st.insert('B');
    st.insert('X');
    st.insert('Y');
    if(check('A')) cur = "A", st.erase('A');
    else if(check('B')) cur = "B", st.erase('B');
    else if(check('X')) cur = "X", st.erase('X');
    else cur = "Y", st.erase('Y');
    auto it = st.begin();
    vector <char> a;
    a.pb(*it);
    ++it;
    a.pb(*it);
    ++it;
    a.pb(*it);
    for(int i = 1; i < n; ++i) {
        veci was(3);
        for(int j = 0; j < 2; ++j) {
            int key = rand() % 3;
            while(was[key]) key = rand() % 3;
            if(press(cur + a[key]) == i + 1) {
                cur += a[key];
                break;
            }
            was[key] = 1;
        }
    }
    return cur;
}

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 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 0 ms 200 KB Output is correct
6 Correct 0 ms 200 KB Output is correct
7 Incorrect 1 ms 200 KB Wrong Answer: wrong guess.
8 Halted 0 ms 0 KB -