oj.uz

답안 #913275

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
913275 2024-01-20T07:05:29 Z 12345678 곤돌라 (IOI14_gondola) C++17
60 / 100
 40 ms 5212 KB 
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

const int mod=1e9+9;
#define ll long long

int valid(int n, int inputSeq[])
{
    set<int> st;
    for (int i=0; i<n; i++) 
    {
        if (st.find(inputSeq[i])!=st.end()) return 0;
        st.insert(inputSeq[i]);
    }
    int s, cnt(0);
    bool can=1;
    pair<int, int> mn={INT_MAX, -1};
    for (int i=0; i<n; i++) mn=min(mn, {inputSeq[i], i});
    if (mn.first>n) return 1;
    cnt=mn.first;
    s=mn.second;
    for (int i=s; i<n; i++) if (inputSeq[i]!=cnt++&&inputSeq[i]<=n) can=0;
    for (int i=0; i<s; i++) if (inputSeq[i]!=cnt++&&inputSeq[i]<=n) can=0;
    return can;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    int cnt(0), res(0);
    set<pair<int, int>> s;
    for (int i=0; i<n; i++) if (gondolaSeq[i]>n) s.insert({gondolaSeq[i], i});
    pair<int, int> mn={INT_MAX, -1};
    for (int i=0; i<n; i++) if (gondolaSeq[i]<=n) mn=min(mn, {gondolaSeq[i], i});
    if (mn.first==INT_MAX) mn={1, 0};
    cnt=mn.first-1;
    vector<int> p(n);
    for (int i=mn.second; i<n; i++) p[i]=(++cnt)>n?cnt-n:cnt;
    for (int i=0; i<mn.second; i++) p[i]=(++cnt)>n?cnt-n:cnt;
    for (auto [x, y]:s)
    {
        replacementSeq[res++]=p[y];
        while (res+n!=x) replacementSeq[res]=res+n, res++;
    }
    return res;
}

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

ll binpow(ll x, ll a)
{
    if (a==0) return 1;
    if (a==1) return x;
    ll tmp=binpow(x, a/2);
    if (a%2==0) return (tmp*tmp)%mod;
    return (((tmp*tmp)%mod)*x)%mod;
}

int countReplacement(int n, int inputSeq[])
{
    if (!valid(n, inputSeq)) return 0;
    int sz(n+1);
    long long ans=1, l;
    set<pair<int, int>> s;
    for (int i=0; i<n; i++) if (inputSeq[i]>n) s.insert({inputSeq[i], i});
    if ((int)s.size()==n) for (int i=1; i<=n; i++) ans=(ans*i)%mod;
    l=(int)s.size();
    for (auto [x, y]:s)
    {
        ans=(ans*binpow(l, x-sz))%mod;
        sz++;
        l--;
    }
    return ans;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 11 ms 2608 KB Output is correct
7 Correct 8 ms 1112 KB Output is correct
8 Correct 23 ms 4592 KB Output is correct
9 Correct 8 ms 1672 KB Output is correct
10 Correct 28 ms 5036 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 16 ms 2584 KB Output is correct
7 Correct 11 ms 1116 KB Output is correct
8 Correct 25 ms 4440 KB Output is correct
9 Correct 7 ms 1624 KB Output is correct
10 Correct 30 ms 5140 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 14 ms 2552 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 40 ms 5212 KB Output is correct

Subtask #4
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 440 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 508 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 440 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 7 ms 1372 KB Output is correct
12 Correct 8 ms 1624 KB Output is correct
13 Correct 18 ms 2732 KB Output is correct
14 Correct 6 ms 1372 KB Output is correct
15 Correct 18 ms 3152 KB Output is correct

Subtask #7
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 548 KB Output is correct

Subtask #8
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Incorrect 1 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Incorrect 1 ms 344 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 444 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Incorrect 1 ms 344 KB Output isn't correct
6 Halted 0 ms 0 KB -