Submission #552301

#	Time	Username	Problem	Language	Result	Execution time	Memory
552301		qadeptrai	Combo (IOI18_combo)	C++14	10 / 100	53 ms	480 KiB

combo

#include <bits/stdc++.h>
#define oo 10000000000007
#define sci(x) scanf("%d", &x)
#define scii(x, y) scanf("%d %d", &x, &y)
#define pri(x) printf("%d ", x)
#define pril(x) printf("%d\n", x)
#define ii pair<int, int>
#define ff first
#define ss second
#define vi vector<int>
#define vii vector<ii>
#define pb push_back
#define mp make_pair
#define ll long long
#define fto(i, a, b) for (int i = a; i <= b; ++i)
#define fdto(i, a, b) for (int i = a; i >= b; --i)
#define maxN 100005

using namespace std;

int n, m;
char a[] = {'A', 'B', 'X', 'Y'};

int press(string s);

string guess_sequence(int n) {
    string s = " ";
    fto(i, 0, 3) {
        s[0] = a[i];
  //      cout << s << endl;
        if(press(s) == 1) break;
    }
    char first = s[0];
    fto(i, 1, n-1) {
        s = s + ' ';
        fto(j, 0, 3) {
            if(a[j] == first) continue;
            s[i] = a[j];
            int coin = press(s);
            if(coin == i+1) {
                break;
            }
        }
    }
    return s;
}

//int main() {
//    cin >> n;
//    cout << guess_sequence(n);
//
//
//}

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