oj.uz

Submission #229339

# Submission time Handle Problem Language Result Execution time Memory
229339 2020-05-04T09:05:22 Z osaaateiasavtnl Gondola (IOI14_gondola) C++14
100 / 100
 69 ms 6008 KB 
#include<bits/stdc++.h>
using namespace std;
 
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcountll
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC
 
#include "gondola.h"
 
signed valid(signed n, signed a[])
{
    set <int> ms;
    for (int i = 0; i < n; ++i)
        ms.insert(a[i]);
    if (ms.size() < n)
        return 0;
 
    int pos = -1;
    for (int i = 0; i < n; ++i) {
        if (a[i] <= n) {
            pos = i;
            break;
        }
    }   
 
    if (pos == -1) 
        return 1;
    else {
        for (int sh = 0; sh < n; ++sh) {
            int i = (pos + sh) % n;
            int val = a[pos] + sh;
            if (val > n)
                val -= n;
            if (a[i] <= n && a[i] != val)
                return 0;
        }
        return 1;
    }   
 
}
 
//----------------------
 
signed replacement(signed n, signed a[], signed ans[])
{
 
    int pos = -1, S;
    for (int i = 0; i < n; ++i) {
        if (a[i] <= n) {
            pos = i;
            S = a[i];
            break;
        }
    }   

    if (pos == -1) {
        pos = 0;
        S = 1;
    }   

    vector <ii> ar;
    for (int sh = 0; sh < n; ++sh) {
        int i = (pos + sh) % n;
        int val = S + sh;
        if (val > n)
            val -= n;
        if (a[i] > n) {
            ar.app(mp(a[i], val));
        }   
    }
    sort(all(ar));
    int ptr = 0;
    int xp = n + 1;
    for (auto e : ar) {
        int cur = e.s;
        while (xp <= e.f) {
            //cout << cur << "->" << xp << endl;
            ans[ptr++] = cur;
            cur = xp++;
        }                           
    }   
    return ptr;
}
 
//----------------------

const ll MOD = 1000 * 1000 * 1000 + 9; 
ll mod(ll n) {
    n %= MOD;
    if (n < 0) return n + MOD;
    else return n;
}   
ll fp(ll a, ll p) {
    ll ans = 1, c = a;
    for (int i = 0; (1ll << i) <= p; ++i) {
        if ((p >> i) & 1) ans = mod(ans * c);
        c = mod(c * c);
    }   
    return ans;
}   
ll dv(ll a, ll b) { return mod(a * fp(b, MOD - 2)); }

signed countReplacement(signed n, signed a[])
{ 
    if (!valid(n, a))
        return 0;

    int pos = -1;
    for (int i = 0; i < n; ++i) {
        if (a[i] <= n) {
            pos = i;
            break;
        }
    }

    vector <int> ar = {n};
    for (int i = 0; i < n; ++i)
        if (a[i] > n)
            ar.app(a[i]);
    sort(all(ar));

    ll ans = 1;
    int r = 0;
    for (int i = (int)ar.size() - 2; i >= 0; --i) {
        ++r;
        int len = ar[i + 1] - ar[i] - 1;
        ans = mod(ans * fp(r, len));
    }   

    if (pos == -1)
        ans = mod(ans * n);

    return ans;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:21:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (ms.size() < n)
         ~~~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 16 ms 2176 KB Output is correct
7 Correct 36 ms 3704 KB Output is correct
8 Correct 28 ms 3968 KB Output is correct
9 Correct 12 ms 1536 KB Output is correct
10 Correct 33 ms 4608 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 16 ms 2176 KB Output is correct
7 Correct 34 ms 3712 KB Output is correct
8 Correct 29 ms 3968 KB Output is correct
9 Correct 11 ms 1536 KB Output is correct
10 Correct 32 ms 4608 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 512 KB Output is correct
13 Correct 23 ms 2176 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 42 ms 4728 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 15 ms 640 KB Output is correct
12 Correct 16 ms 640 KB Output is correct
13 Correct 20 ms 1296 KB Output is correct
14 Correct 16 ms 640 KB Output is correct
15 Correct 27 ms 2424 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 46 ms 4088 KB Output is correct
10 Correct 36 ms 3448 KB Output is correct
11 Correct 16 ms 1408 KB Output is correct
12 Correct 19 ms 1792 KB Output is correct
13 Correct 7 ms 640 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 44 ms 3992 KB Output is correct
10 Correct 36 ms 3456 KB Output is correct
11 Correct 16 ms 1408 KB Output is correct
12 Correct 19 ms 1792 KB Output is correct
13 Correct 8 ms 640 KB Output is correct
14 Correct 59 ms 5368 KB Output is correct
15 Correct 69 ms 6008 KB Output is correct
16 Correct 14 ms 1408 KB Output is correct
17 Correct 41 ms 4216 KB Output is correct
18 Correct 24 ms 2432 KB Output is correct