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Submission #103775

# Submission time Handle Problem Language Result Execution time Memory
103775 2019-04-02T13:57:27 Z SecretAgent007 Gondola (IOI14_gondola) C++17
55 / 100
 80 ms 10104 KB 
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

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

    int index = 0;
    int num = n;

    map< int, bool> visited;

    for(int i = 0; i < n; i++){
        if(visited[inputSeq[i]]) return 0;
        visited[inputSeq[i]] = true;
        if(inputSeq[i] <= num){
            num = inputSeq[i];
            index = i;
        }
    }

    int start = (index-num+1+n)%n;

    int curr = 1;

    for(int i = start; i < n; i++){
        if(inputSeq[i] <= n && inputSeq[i] != curr) return 0;
        curr++;
    }
    for(int j = 0; j < start; j++){
        if(inputSeq[j] <= n && inputSeq[j] != curr) return 0;
        curr++;
    }
    return 1;
}

int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    int index = 0;
    int num = n;

    int maxi = 0;

    for(int i = 0; i < n; i++){
        if(gondolaSeq[i] <= num){
            num = gondolaSeq[i];
            index = i;
        }
        maxi = max(maxi, gondolaSeq[i]);
    }

    int start = (index-num+1+n)%n;

    if(gondolaSeq[index] > n) start = 0;

    int curr = 1;

    map<int, int> mape;

    vector< int > current(n+1);

    for(int i = 1; i <= n; i++){
        current[i] = i;
    }

    int in;

    for(int i = start; i < n; i++){
        mape[gondolaSeq[i]] = curr;
        if(gondolaSeq[i] == maxi) in = curr;
        curr++;
    }
    for(int j = 0; j < start; j++){
        mape[gondolaSeq[j]] = curr;
        if(gondolaSeq[j] == maxi) in = curr;
        curr++;
    }

    int c = 0;

    for(int i = n+1; i <= maxi; i++){
        if(mape[i] != 0){
            replacementSeq[c] = current[mape[i]];
            current[mape[i]] = i;
        }else{
            replacementSeq[c] = current[in];
            current[in] = i;
        }
        c++;
    }

    return c;
}

int last;

map<int, bool> visited;
vector< int > ve;
vector< int > cnt;

const int mod = 1e9+9;

int dp(int curr, int n){
    if(curr >= n){
        return 1;
    }

    if(visited[curr]){
        return dp(curr+1, n);
    }

    long long  index = n-curr-1;
    long long nb = index;
    nb = nb%mod;

    long long tempo = ((nb*dp(curr+1,n))%mod)*(cnt[curr+1]-cnt[curr])%mod;
    return (tempo);
}

int countReplacement(int n, int inputSeq[]){
    if(!valid(n,inputSeq)) return 0;

    ve.resize(n);
    cnt.resize(0);

    int mini = mod;

    for(int i = 0; i < n; i++){
        mini = min(mini, inputSeq[i]);
        last = max(last, inputSeq[i]);
        ve[i] = inputSeq[i];
        if(inputSeq[i] > n){
            cnt.push_back(inputSeq[i]);
        }
        //cnt[i] = inputSeq[i];
        visited[inputSeq[i]] = true;
    }

    if(!visited[n+1]) cnt.push_back(n+1);
    sort(cnt.begin(), cnt.end());

    cnt.push_back(cnt.back());

    long long rep = dp(0, cnt.size()-1);

    /*for(int i = n-2; i >= 0; i--){
        if(cnt[i] < n+1) break;
        rep = ((rep*(n-i-1)%mod)*(cnt[i+1]-cnt[i]))%mod;
    }
    */
    if(mini >= n){
        long long ans = ((long long)n*rep)%mod;
        return ans;
    }

    return rep;
}
/*
int main(){
    int n;
    cin >> n;
    int v[n];
    int maxi = 0;
    for(int i = 0; i < n; i++){
        cin >> v[i];
        maxi = max(maxi, v[i]);
    }
    int ans[maxi-n];
    cout << replacement(n,v,ans) << endl;
    for(int a : ans){
        cout << a << ' ';
    }
    cout << endl;

    cout << "NUMBER " << countReplacement(n,v) << endl;
}*/

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:85:43: warning: 'in' may be used uninitialized in this function [-Wmaybe-uninitialized]
             replacementSeq[c] = current[in];
                                           ^

Subtask #1
5.0 / 5.0

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

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 3 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 19 ms 2264 KB Output is correct
7 Correct 15 ms 768 KB Output is correct
8 Correct 36 ms 3960 KB Output is correct
9 Correct 11 ms 1476 KB Output is correct
10 Correct 42 ms 4600 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 18 ms 2160 KB Output is correct
7 Correct 18 ms 640 KB Output is correct
8 Correct 32 ms 3960 KB Output is correct
9 Correct 12 ms 1536 KB Output is correct
10 Correct 45 ms 4568 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 35 ms 2048 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 80 ms 4696 KB Output is correct

Subtask #4
5.0 / 5.0

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

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 4 ms 512 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 4 ms 640 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 256 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 4 ms 640 KB Output is correct
9 Correct 3 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 32 ms 4600 KB Output is correct
12 Correct 35 ms 5240 KB Output is correct
13 Correct 49 ms 4720 KB Output is correct
14 Correct 33 ms 4600 KB Output is correct
15 Correct 65 ms 10104 KB Output is correct

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 256 KB Output is correct
3 Incorrect 3 ms 384 KB Output isn't correct

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 320 KB Output is correct
3 Incorrect 2 ms 256 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 256 KB Output is correct
3 Incorrect 2 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Incorrect 2 ms 256 KB Output isn't correct
4 Halted 0 ms 0 KB -