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Submission #801107

# Submission time Handle Problem Language Result Execution time Memory
801107 2023-08-02T04:36:05 Z jlallas384 Gondola (IOI14_gondola) C++17
75 / 100
 33 ms 4584 KB 
#include <bits/stdc++.h>
#include "gondola.h"
using namespace std;
using ll = long long;
const int mod = 1e9 + 9;
int valid(int n, int inputSeq[]){
    set<int> used;
    int idx = 0;
    for(int i = 0; i < n; i++){
        if(used.count(inputSeq[i])) return 0;
        used.insert(inputSeq[i]);
        if(inputSeq[i] <= n){
            idx = i;
        }
    }
    int nd = inputSeq[idx];
    for(int i = 0; i < n; i++){
        int j = (idx + i) % n;
        if(inputSeq[j] <= n && inputSeq[j] != nd) return 0;
        nd++;
        if(nd > n) nd = 1;
    }
    return 1;
}

int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    int idx = -1;
    for(int i = 0; i < n; i++){
        if(gondolaSeq[i] <= n){
            idx = i;
            break;
        }
    }
    vector<int> st(n);
    int nd = (idx == -1 ? 1 : gondolaSeq[idx]);
    if(idx == -1) idx = 0;
    for(int i = 0; i < n; i++){
        st[(idx + i) % n] = nd++;
        if(nd > n) nd = 1;
    }
    vector<pair<int,int>> srt;
    for(int i = 0; i < n; i++){
        if(gondolaSeq[i] > n) srt.emplace_back(gondolaSeq[i], i);
    }
    sort(srt.begin(), srt.end());
    int l = 0;
    int c = n + 1;
    for(auto [v, i]: srt){
        replacementSeq[l++] = st[i];
        while(c < v){
            replacementSeq[l++] = c++;
        }
        c++;
    }
    return l;
}


ll pwr(int x, int y){
    ll res = 1;
    while(y){
        if(y % 2) res = res * x % mod;
        x = (ll) x * x % mod;
        y /= 2;
    }
    return res;
}

int countReplacement(int n, int inputSeq[]){
    if(!valid(n, inputSeq)) return 0;
    vector<int> a;
    for(int i = 0; i < n; i++){
        if(inputSeq[i] > n) a.push_back(inputSeq[i]);
    }
    sort(a.begin(), a.end());
    ll ans = 1;
    int prv = n;
    for(int i = 0; i < a.size(); i++){
        ans = (ans * pwr((int) a.size() - i, a[i] - prv - 1)) % mod;
        prv = a[i];
    }
    return ans;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:78:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |     for(int i = 0; i < a.size(); i++){
      |                    ~~^~~~~~~~~~

Subtask #1
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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #2
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 1 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 10 ms 2132 KB Output is correct
7 Correct 7 ms 596 KB Output is correct
8 Correct 21 ms 3944 KB Output is correct
9 Correct 6 ms 1464 KB Output is correct
10 Correct 24 ms 4448 KB Output is correct

Subtask #3
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 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 10 ms 2132 KB Output is correct
7 Correct 7 ms 596 KB Output is correct
8 Correct 22 ms 3876 KB Output is correct
9 Correct 6 ms 1364 KB Output is correct
10 Correct 28 ms 4524 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 12 ms 2004 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 33 ms 4584 KB Output is correct

Subtask #4
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 #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 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 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 7 ms 852 KB Output is correct
12 Correct 8 ms 980 KB Output is correct
13 Correct 14 ms 1232 KB Output is correct
14 Correct 6 ms 824 KB Output is correct
15 Correct 16 ms 2320 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 0 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 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 1 ms 212 KB Output is correct
5 Correct 0 ms 312 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

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 1 ms 212 KB Output is correct
8 Correct 1 ms 308 KB Output is correct
9 Correct 31 ms 4572 KB Output is correct
10 Correct 24 ms 3796 KB Output is correct
11 Correct 9 ms 1492 KB Output is correct
12 Correct 12 ms 1856 KB Output is correct
13 Incorrect 3 ms 596 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 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 1 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 31 ms 4424 KB Output is correct
10 Correct 25 ms 3748 KB Output is correct
11 Correct 12 ms 1600 KB Output is correct
12 Correct 11 ms 1748 KB Output is correct
13 Incorrect 3 ms 572 KB Output isn't correct
14 Halted 0 ms 0 KB -