Submission #1121852

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121852		vjudge1	Calvinball championship (CEOI15_teams)	C++17	20 / 100	1068 ms	1360 KiB

teams

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define FORI(i, n) for(ll i = 0; i < n; i++)
#define FOR(i, n) for(ll i = 1; i <= n; i++)
typedef vector < ll > vl; 
typedef set < ll > setl;
#define ff first
#define ss second    
#define all(v) v.begin(), v.end() 
#define pll pair<ll, ll> 
#define db double
#define nll cout << "\n"
#define nl "\n"
#define sync ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);

const ll mod =  1000007;
const int MAX = 300000 + 5;
const int imax = 2147483647;
ll n, m, k, res, rnk[MAX];
ll a[MAX];
ll cnt, ans;
vl v, cur;
void f (ll ind, ll mx){
    if(ind > n){
        cnt++;
        cnt %= mod;
        if(cur == v){
            cout << cnt;
        }
        return;
    }
    FOR(i, min(ind, mx + 1)){
        cur.push_back(i);
        f(ind + 1, max(mx, i));
        cur.pop_back();
    }
}
void solve(){
    cin >> n;
    ll res = 0;
    for(ll i = n; i >= 1; i--)cin >> a[i], v.push_back(a[i]);
    f(1, 1);
}
signed main(){  
    // freopen("input.txt","r",stdin);
    // freopen("output.txt","w",stdout);
    sync;
    ll t = 1;
    // cin >> t;
    FOR(i, t){
        // cout << "Case #" << i << ": ";
        solve();
    }
}

Compilation message (stderr)

teams.cpp: In function 'void solve()':
teams.cpp:42:8: warning: unused variable 'res' [-Wunused-variable]
   42 |     ll res = 0;
      |        ^~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10