oj.uz

Submission #1033167

# Submission time Handle Problem Language Result Execution time Memory
1033167 2024-07-24T13:32:45 Z c2zi6 Gondola (IOI14_gondola) C++14
100 / 100
 39 ms 7184 KB 
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define replr(i, a, b) for (int i = int(a); i <= int(b); ++i)
#define reprl(i, a, b) for (int i = int(a); i >= int(b); --i)
#define rep(i, n) for (int i = 0; i < int(n); ++i)
#define mkp(a, b) make_pair(a, b)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<PII> VPI;
typedef vector<VI> VVI;
typedef vector<VVI> VVVI;
typedef vector<VPI> VVPI;
typedef pair<ll, ll> PLL;
typedef vector<ll> VL;
typedef vector<PLL> VPL;
typedef vector<VL> VVL;
typedef vector<VVL> VVVL;
typedef vector<VPL> VVPL;
template<class T> T setmax(T& a, T b) {if (a < b) return a = b; return a;}
template<class T> T setmin(T& a, T b) {if (a < b) return a; return a = b;}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template<class T>
using indset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#include "gondola.h"

int valid(int n, int inputSeq[]) {
    VI a;
    rep(i, n) {
        if (inputSeq[i] <= n) {
            int start = i - inputSeq[i] + 1;
            if (start < n) start += n;
            replr(i, start, start+n-1) a.pb(inputSeq[i%n]);
            break;
        }
    }
    if (a.size() == 0) {
        rep(i, n) a.pb(inputSeq[i]);
    }
    set<int> st;
    for (int x : a) st.insert(x);
    if (st.size() != a.size()) return false;
    rep(i, n) {
        if (a[i] <= n) {
            if (a[i] != i+1) return false;
        }
    }
    return true;
}

//----------------------

int replacement(int n, int inputSeq[], int replacementSeq[]) {
    VI a;
    rep(i, n) {
        if (inputSeq[i] <= n) {
            int start = i - inputSeq[i] + 1;
            if (start < n) start += n;
            replr(i, start, start+n-1) a.pb(inputSeq[i%n]);
            break;
        }
    }
    if (a.size() == 0) {
        rep(i, n) a.pb(inputSeq[i]);
    }
    for (int& x : a) x--;
    int mx = 0;
    VI idx(250'000, -1);
    rep(i, n) {
        setmax(mx, a[i]);
        idx[a[i]] = i;
    }
    VI ans;

    map<int, int> cur;
    rep(i, n) if (idx[i] == -1) {
        cur[i] = i;
    }

    replr(i, n, mx) {
        if (idx[i] == -1) {
            auto it = cur.begin();
            ans.pb(it->ss);
            it->ss = i;
        } else {
            auto it = cur.lower_bound(idx[i]);
            ans.pb(it->ss);
            it->ss = i;
            cur.erase(it);
        }
    }
    rep(i, ans.size()) replacementSeq[i] = ans[i]+1;
    return ans.size();
}

//----------------------

const ll MOD = 1e9 + 9;
ll binpow(ll a, ll b) {
    if (b == 0) return 1l;
    if (b & 1) return binpow(a, b-1) * a % MOD;
    ll ret = binpow(a, b/2);
    return ret * ret % MOD;
}
int countReplacement(int n, int inputSeq[]) {
    VI a;
    rep(i, n) {
        if (inputSeq[i] <= n) {
            int start = i - inputSeq[i] + 1;
            if (start < n) start += n;
            replr(i, start, start+n-1) a.pb(inputSeq[i%n]);
            break;
        }
    }
    bool ardyoq = false;
    if (a.size() == 0) {
        ardyoq = true;
        rep(i, n) a.pb(inputSeq[i]);
    }
    set<int> st;
    for (int x : a) st.insert(x);
    if (st.size() != a.size()) return 0;
    rep(i, n) if (a[i] <= n && a[i] != i+1) return 0;
    for (int& x : a) x--;
    int mx = 0;
    rep(i, n) setmax(mx, a[i]);
    VI ka;
    ka.pb(n-1);
    ll cur = 0;
    rep(i, n) {
        if (a[i] >= n) {
            cur++;
            ka.pb(a[i]);
        }
    }
    sort(all(ka));
    ll ans = 1;
    rep(i, ka.size()-1) {
        ll b = ka[i+1] - ka[i] - 1;
        ans *= binpow(cur--, b);
        ans %= MOD;
    }
    if (ardyoq) {
        ans *= n;
        ans %= MOD;
    }
    return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 444 KB Output is correct
6 Correct 8 ms 2516 KB Output is correct
7 Correct 20 ms 4564 KB Output is correct
8 Correct 19 ms 4636 KB Output is correct
9 Correct 5 ms 1628 KB Output is correct
10 Correct 18 ms 5412 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 444 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 9 ms 2620 KB Output is correct
7 Correct 20 ms 4564 KB Output is correct
8 Correct 16 ms 4564 KB Output is correct
9 Correct 5 ms 1628 KB Output is correct
10 Correct 19 ms 5332 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 10 ms 2488 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 24 ms 5584 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1372 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1372 KB Output is correct
6 Correct 1 ms 1368 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 1 ms 1372 KB Output is correct
10 Correct 1 ms 1488 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1372 KB Output is correct
6 Correct 1 ms 1372 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 1 ms 1372 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 8 ms 2408 KB Output is correct
12 Correct 9 ms 2884 KB Output is correct
13 Correct 17 ms 3900 KB Output is correct
14 Correct 6 ms 2512 KB Output is correct
15 Correct 16 ms 3792 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 440 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 25 ms 5324 KB Output is correct
10 Correct 22 ms 4448 KB Output is correct
11 Correct 8 ms 1884 KB Output is correct
12 Correct 9 ms 2140 KB Output is correct
13 Correct 2 ms 872 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 396 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 26 ms 5292 KB Output is correct
10 Correct 21 ms 4528 KB Output is correct
11 Correct 13 ms 1880 KB Output is correct
12 Correct 16 ms 2140 KB Output is correct
13 Correct 4 ms 856 KB Output is correct
14 Correct 39 ms 6612 KB Output is correct
15 Correct 38 ms 7184 KB Output is correct
16 Correct 11 ms 1628 KB Output is correct
17 Correct 26 ms 4864 KB Output is correct
18 Correct 14 ms 3028 KB Output is correct