Submission #1121740

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121740		rahidilbayramli	Calvinball championship (CEOI15_teams)	C++17	10 / 100	79 ms	65536 KiB

teams

#pragma GCC optimize("-O3")
#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define pb push_back
#define sz(v) (ll)(v.size())
#define f first
#define s second
#define pii pair<int, int>
#define pll pair<ll, ll>
using namespace std;
const ll mod = 1e6+7;
void solve()
{
    ll n, i, j, k, l, r, f, p;
    cin >> n;
    ll a[n+5], cnt = 0;
    for(i = 1; i <= n; i++){
        cin >> a[i];
        if(a[i] == i)
            cnt++;
    }
    vector<vl>vect;
    vl v;
    for(i = 1; i <= n; i++)
        v.pb(1);
    ll pos = n - 1, pos2 = n - 1;
    vect.pb(v);
    while(true)
    {
        while(pos2 && v[pos2]-v[pos2-1] == 1)
        {
            pos2--;
        }
        v[pos2]++;
        k = v[pos2];
        for(j = pos2+1; j < n; j++)
        {
            k--;
            v[j] = max(1LL, k);
        }
        pos2 = n - 1;
        if(v[0] > 1)
            break;
        vect.pb(v);
    }
    bool ok = true;
    cnt = 0;
    for(auto u : vect)
    {
        cnt++;
        ok = true;
        for(j = 0; j < n; j++)
        {
            if(u[j] == a[j+1])
                continue;
            ok = false;
        }
        if(ok)
        {
            cout << cnt << "\n";
            return;
        }
    }
}
int main()
{
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    ll tests = 1;
    //cin >> tests;
    while(tests--)
    {
        solve();
    }
}

Compilation message (stderr)

teams.cpp: In function 'void solve()':
teams.cpp:19:20: warning: unused variable 'l' [-Wunused-variable]
   19 |     ll n, i, j, k, l, r, f, p;
      |                    ^
teams.cpp:19:23: warning: unused variable 'r' [-Wunused-variable]
   19 |     ll n, i, j, k, l, r, f, p;
      |                       ^
teams.cpp:11:11: warning: unused variable 'first' [-Wunused-variable]
   11 | #define f first
      |           ^~~~~
teams.cpp:19:26: note: in expansion of macro 'f'
   19 |     ll n, i, j, k, l, r, f, p;
      |                          ^
teams.cpp:19:29: warning: unused variable 'p' [-Wunused-variable]
   19 |     ll n, i, j, k, l, r, f, p;
      |                             ^
teams.cpp:31:8: warning: unused variable 'pos' [-Wunused-variable]
   31 |     ll pos = n - 1, pos2 = n - 1;
      |        ^~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 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