oj.uz

Submission #229337

# Submission time Handle Problem Language Result Execution time Memory
229337 2020-05-04T09:03:46 Z osaaateiasavtnl Gondola (IOI14_gondola) C++14
75 / 100
 50 ms 4728 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;
        }
    }   
    if (pos == -1) {
        exit(1);
    }   

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

    /*
    cout << "ar : ";
    for (int e : ar)
        cout << e << ' ';
    cout << endl;
    */

    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));
    }   
    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 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 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 4 ms 256 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 16 ms 2176 KB Output is correct
7 Correct 35 ms 3704 KB Output is correct
8 Correct 28 ms 3968 KB Output is correct
9 Correct 11 ms 1536 KB Output is correct
10 Correct 32 ms 4600 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 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 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 40 ms 3704 KB Output is correct
8 Correct 28 ms 3968 KB Output is correct
9 Correct 11 ms 1536 KB Output is correct
10 Correct 34 ms 4600 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 20 ms 2048 KB Output is correct
14 Correct 4 ms 256 KB Output is correct
15 Correct 50 ms 4728 KB Output is correct

Subtask #4
5.0 / 5.0

# 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 4 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 5 ms 384 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 4 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 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 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
11 Correct 16 ms 640 KB Output is correct
12 Correct 18 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 2296 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 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 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 288 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct

Subtask #9
0 / 15.0

# 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 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 46 ms 4472 KB Output is correct
10 Correct 36 ms 3840 KB Output is correct
11 Correct 17 ms 1536 KB Output is correct
12 Correct 19 ms 1920 KB Output is correct
13 Runtime error 7 ms 640 KB Execution failed because the return code was nonzero

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 308 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 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 46 ms 4504 KB Output is correct
10 Correct 38 ms 3832 KB Output is correct
11 Correct 16 ms 1536 KB Output is correct
12 Correct 19 ms 1920 KB Output is correct
13 Runtime error 7 ms 640 KB Execution failed because the return code was nonzero
14 Halted 0 ms 0 KB -