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Submission #775228

# Submission time Handle Problem Language Result Execution time Memory
775228 2023-07-06T08:54:14 Z danikoynov Gondola (IOI14_gondola) C++14
100 / 100
 50 ms 9388 KB 
#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll maxn = 1e6 + 10;

ll cnt[maxn];
int valid(int n, int inputSeq[])
{
    for (ll i = 0; i < n; i ++)
    {
        ll val = inputSeq[(i + 1) % n];

        if (inputSeq[i] == n && val == 1)
            continue;
        if (val != inputSeq[i] + 1)
        {
            ///cout << i << endl;
            ///cout << inputSeq[i] << " " << val << endl;
            return 0;
        }

    }
    return 1;
}

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

ll order[maxn], to_go[maxn];
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    ll pivot = 0;
    while(pivot < n && gondolaSeq[pivot] > n)
        pivot ++;

    if (pivot == n)
    {
        pivot = 0;
        for (ll i = 0; i < n; i ++)
            order[i] = gondolaSeq[i];
    }
    else
    {
        order[gondolaSeq[pivot] - 1] = gondolaSeq[pivot];
        for (ll i = pivot + 1; i < n + pivot; i ++)
        {
            order[(gondolaSeq[pivot] - 1 + (i - pivot)) % n] = gondolaSeq[i % n];
        }
    }
    ///for (ll i = 0; i < n; i ++)
    ///cout << order[i] << " ";
    /// cout << endl;
    ll mx = 0, pt = 0;

    for (ll i = 0; i < n; i ++)
    {
        if (order[i] > n)
        {
            if (order[i] > mx)
            {
                mx = order[i];
                pt = i + 1;
            }
            to_go[order[i]] = i + 1;
        }
    }
    ///cout << mx << " " << pt << endl;

    ll idx = 0, last_free = pt;
    for (ll i = n + 1; i <= mx; i ++)
    {
        if (to_go[i] != 0)
        {
            if (to_go[i] == pt)
                replacementSeq[idx ++] = last_free;
            else
                replacementSeq[idx ++] = to_go[i];
        }
        else
        {
            replacementSeq[idx ++] = last_free;
            last_free = i;
        }
    }
    return max((ll)0, mx - n);
}

//----------------------
const ll mod = 1e9 + 9;
ll power(ll base, ll st)
{
    ll ans = 1;
    while(st > 0)
    {
        if (st %  2 == 1)
            ans = (ans * base) % mod;
        base = (base * base) % mod;
        st /= 2;
    }
    return ans;
}

int countReplacement(int n, int inputSeq[])
{

    map < ll, ll > mp;
    for (ll i = 0; i < n; i ++)
    {
        if (mp[inputSeq[i]] != 0)
            return 0;
        mp[inputSeq[i]] = 1;
    }

     ll pivot = 0;
    while(pivot < n && inputSeq[pivot] > n)
        pivot ++;

    if (pivot == n)
    {
        pivot = 0;
        for (ll i = 0; i < n; i ++)
            order[i] = inputSeq[i];
    }
    else
    {
        order[inputSeq[pivot] - 1] = inputSeq[pivot];
        for (ll i = pivot + 1; i < n + pivot; i ++)
        {
            order[(inputSeq[pivot] - 1 + (i - pivot)) % n] = inputSeq[i % n];
        }
    }
    /**for (ll i = 0; i < n; i ++)
    cout << order[i] << " ";
     cout << endl;*/
    ll mx = 0, pt = 0;
    vector < ll > db;
    for (ll i = 0; i < n; i ++)
    {
        if (order[i] > n)
        {
            if (order[i] > mx)
            {
                mx = order[i];
                pt = i + 1;
            }
            db.push_back(order[i]);
            //to_go[order[i]] = i + 1;
        }
    }
    ///cout << mx << " " << pt << endl;
    ll sp = 0;
    for (ll i = 0; i < n; i ++)
        if (order[i] > n)
        sp ++;

    //cout << sp << endl;
    ll idx = 0, last_free = pt;
    ll ways = 1;
    if (sp == n)
        ways = n;

        sort(db.begin(), db.end());
        ll last = n;
        for (ll cur : db)
        {
            ways = (ways * power(sp, cur - last - 1)) % mod;
            last = cur;
            sp --;
        }
    /**for (ll i = n + 1; i <= mx; i ++)
    {
        if (ways == 0)
            return 0;
        if (to_go[i] != 0)
        {
            sp --;
            //if (to_go[i] == pt)
              //  replacementSeq[idx ++] = last_free;
            //else
              ///  replacementSeq[idx ++] = to_go[i];
        }
        else
        {
            ///cout << i << " : " << sp << " " << ways << endl;
            ways = (ways * sp) % mod;
            ///replacementSeq[idx ++] = last_free;
            ///last_free = i;
        }
    }*/
    return ways;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:159:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  159 |     if (sp == n)
      |     ^~
gondola.cpp:162:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  162 |         sort(db.begin(), db.end());
      |         ^~~~
gondola.cpp:157:8: warning: unused variable 'idx' [-Wunused-variable]
  157 |     ll idx = 0, last_free = pt;
      |        ^~~
gondola.cpp:157:17: warning: unused variable 'last_free' [-Wunused-variable]
  157 |     ll idx = 0, last_free = pt;
      |                 ^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 6 ms 596 KB Output is correct
8 Correct 5 ms 596 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 6 ms 544 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 7 ms 624 KB Output is correct
8 Correct 5 ms 468 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 6 ms 640 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 3 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 6 ms 604 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 312 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 304 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 308 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 7 ms 1604 KB Output is correct
12 Correct 7 ms 1876 KB Output is correct
13 Correct 9 ms 2132 KB Output is correct
14 Correct 7 ms 1600 KB Output is correct
15 Correct 14 ms 3284 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 312 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 308 KB Output is correct
8 Correct 0 ms 212 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 34 ms 6864 KB Output is correct
10 Correct 27 ms 5876 KB Output is correct
11 Correct 10 ms 2516 KB Output is correct
12 Correct 13 ms 2876 KB Output is correct
13 Correct 3 ms 956 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 34 ms 6896 KB Output is correct
10 Correct 28 ms 5708 KB Output is correct
11 Correct 10 ms 2516 KB Output is correct
12 Correct 13 ms 2900 KB Output is correct
13 Correct 3 ms 980 KB Output is correct
14 Correct 43 ms 7856 KB Output is correct
15 Correct 50 ms 9388 KB Output is correct
16 Correct 8 ms 2132 KB Output is correct
17 Correct 31 ms 6332 KB Output is correct
18 Correct 17 ms 3920 KB Output is correct