| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 737760 | nicolaev | Combo (IOI18_combo) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define mod 1000000007
#define ll long long
#define all(v) v.begin(), v.end()
#define fr(n) for(ll i=0;i<n;++i)
#define ctz(x) __builtin_ctzll(x)
#define clz(x) __builtin_clzll(x)
#define pcount(x) __builtin_popcountll(x)
const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, 1, 0, -1};
// #define cin fin
// #define cout fout
// ifstream fin
// ofstream fout
//const ll maxn = 3e5 + 5;
//int f[maxn],nf[maxn],inv[maxn];
//const int M=998244353;
//void init(){
//inv[1]=1; for (int i=2;i<maxn;i++) inv[i]=M-1ll*(M/i)*inv[M%i]%M;
//f[0]=nf[0]=1; for (int i=1;i<maxn;i++) f[i]=1ll*f[i-1]*i%M,nf[i]=1ll*nf[i-1]*inv[i]%M;
//}
//int C(int x,int y){return 1ll*f[x]*nf[y]%M*nf[x-y]%M;}
string guess_sequence(int N);
int press(string p);
void solve(){
ll n;cin>>n;
string fs="";
vector<string> v(n);
v.push_back("A");
v.push_back("B");
v.push_back("X");
v.push_back("Y");
for(int i=0; i<4; i++){
int temp=press(v[i]);
if(temp){
fs+=v[i];
v.erase(v.begin()+i);
break;
}
}
ll cnt=2;
for(int i=0;i<n-1; i++){
for(int j=0; j<v.size(); j++){
int temp=press(fs+v[i]);
if(temp==cnt){
fs+=v[i];
cnt++;
break;
}
}
}
}
int main(){
// ios_base::sync_with_stdio(false); cin.tie(NULL);
// ll t;cin>>t;while(t--){solve();cout<<endl;}
solve();
}