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Submission #749977

# Submission time Handle Problem Language Result Execution time Memory
749977 2023-05-29T02:42:49 Z Abrar_Al_Samit Gondola (IOI14_gondola) C++17
75 / 100
 38 ms 4940 KB 
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

const int nax = 1e5 + 3;
const int mod = 1e9 + 9;

map<int,int>cnt;
int expected[nax];

void get_expected(int n, int inputSeq[]) {
    for(int i=0; i<n; ++i) {
        expected[i] = 0;
    }

    int min_at = min_element(inputSeq, inputSeq+n) - inputSeq;

    int cur_val = inputSeq[min_at];
    int cur_id = min_at;

    for(int i=cur_id; ; ++i, ++cur_val) {
        if(i==n) i = 0;
        if(cur_val>n) cur_val = 1;

        if(expected[i]) break;

        expected[i] = cur_val;
    }
}
int valid(int n, int inputSeq[]) {
    cnt.clear();
    for(int i=0; i<n; ++i) {
        cnt[inputSeq[i]]++;
        if(cnt[inputSeq[i]]>1) {
            return 0;
        }
    }

    get_expected(n, inputSeq);


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

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

int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
    get_expected(n, gondolaSeq);

    vector<pair<int,int>>v;
    for(int i=0; i<n; ++i) if(gondolaSeq[i]>n) {
        v.emplace_back(gondolaSeq[i], expected[i]);
    }
    sort(v.begin(), v.end());

    int l = 0;
    int at = 0;

    while(at<v.size()) {
        int cur_gondola = v[at].second;

        while(l+n+1<=v[at].first) {
            replacementSeq[l] = cur_gondola;
            cur_gondola = l+n+1;

            ++l;
        }
        ++at;
    }
    return l;
}

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

int mul(int x, int y) {
    return (x * 1LL * y) % mod;
}
int quickpow(int a, int b) {
    int ret = 1;
    while(b) {
        if(b&1) ret = mul(ret, a);
        a = mul(a, a);
        b >>= 1;
    }
    return ret;
}
int countReplacement(int n, int inputSeq[]) {
    if(!valid(n, inputSeq)) return 0;

    int mx = 0, gtn = 0;

    vector<int>v;
    for(int i=0; i<n; ++i) {
        mx = max(mx, inputSeq[i]);
        if(inputSeq[i]>n) {
            ++gtn;
            v.push_back(inputSeq[i]);
        }
    }
    v.push_back(n);
    sort(v.begin(), v.end());
    long long ans = 1;

    for(int i=1; i<v.size(); ++i) {
        int cnt = v[i] - v[i-1] - 1;

        int option = gtn - i + 1;

        ans *= quickpow(option, cnt);
        ans %= mod;
    }
    return ans;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:63:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |     while(at<v.size()) {
      |           ~~^~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:108:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  108 |     for(int i=1; i<v.size(); ++i) {
      |                  ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 212 KB Output is correct

Subtask #2
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 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 12 ms 2344 KB Output is correct
7 Correct 7 ms 632 KB Output is correct
8 Correct 22 ms 4172 KB Output is correct
9 Correct 8 ms 1560 KB Output is correct
10 Correct 29 ms 4812 KB Output is correct

Subtask #3
10.0 / 10.0

# 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
6 Correct 13 ms 2372 KB Output is correct
7 Correct 7 ms 596 KB Output is correct
8 Correct 21 ms 4124 KB Output is correct
9 Correct 7 ms 1496 KB Output is correct
10 Correct 28 ms 4812 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 15 ms 2124 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 38 ms 4940 KB Output is correct

Subtask #4
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

Subtask #5
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 1 ms 212 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 1 ms 212 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 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 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 0 ms 212 KB Output is correct
7 Correct 1 ms 212 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 10 ms 852 KB Output is correct
12 Correct 8 ms 980 KB Output is correct
13 Correct 12 ms 1352 KB Output is correct
14 Correct 7 ms 852 KB Output is correct
15 Correct 19 ms 2252 KB Output is correct

Subtask #7
5.0 / 5.0

# 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

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 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

Subtask #9
0 / 15.0

# 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 0 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 37 ms 4684 KB Output is correct
10 Correct 30 ms 3920 KB Output is correct
11 Correct 11 ms 1748 KB Output is correct
12 Correct 13 ms 1968 KB Output is correct
13 Incorrect 3 ms 724 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #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 0 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 1 ms 212 KB Output is correct
9 Correct 36 ms 4660 KB Output is correct
10 Correct 28 ms 3924 KB Output is correct
11 Correct 10 ms 1668 KB Output is correct
12 Correct 13 ms 1944 KB Output is correct
13 Incorrect 3 ms 724 KB Output isn't correct
14 Halted 0 ms 0 KB -