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Submission #1027635

# Submission time Handle Problem Language Result Execution time Memory
1027635 2024-07-19T08:08:13 Z MarwenElarbi Gondola (IOI14_gondola) C++17
100 / 100
 69 ms 9580 KB 
    #include <bits/stdc++.h>
    #include "gondola.h"
    using namespace std;
    #define pb push_back
    #define se second
    #define fi first
    const int nax=5e5+5;
    const int MOD=1e9+9;
    int valid(int n, int inputSeq[])
    {
        vector<pair<int,int>> tab;
        bool test=true;
        set<int> stt;
        for (int i = 0; i < n; ++i)
        {
            stt.insert(inputSeq[i]);
        }
        test&=(stt.size()==n);
        int cnt=-1e9;
        for (int i = 0; i < n; ++i)
        {
            if(inputSeq[i]<=n){
                cnt=(inputSeq[i]-(i+1)+n)%n;
            }
        }
        if(cnt==-1e9) return test;
        for (int i = 0; i < n; ++i)
        {
            if(inputSeq[i]<=n){
                if((inputSeq[i]-(i+1)+n)%n!=cnt) test=false;
            }
        }
        return test;
    }
     
    //----------------------
     
    int replacement(int n, int gondolaSeq[], int replacementSeq[])
    {
        vector<pair<int,int>> tab;
        for (int i = 0; i < n; ++i)
        { 
            if(gondolaSeq[i]>n){
                tab.pb({gondolaSeq[i],i+1});
            }
        }
        if(tab.size()==n){
            sort(tab.begin(),tab.end());
            int cnt=n;
            int cur=0;
            for (int i = 0; i < tab.size(); ++i)
            {
                replacementSeq[cur++]=tab[i].se;
                cnt++;
                while(cnt<tab[i].fi){
                    replacementSeq[cur++]=cnt++;
                }
            }
            return cur;    
        }else{
            int a=0;
            for (int i = 0; i < n; ++i)
            {
                if(gondolaSeq[i]<=n) a=(gondolaSeq[i]-(i+1)+n)%n;
            }
            sort(tab.begin(),tab.end());
            int cnt=n;
            int cur=0;
            for (int i = 0; i < tab.size(); ++i)
            {
                replacementSeq[cur++]=((tab[i].se+a)%n == 0 ? n : (tab[i].se+a)%n);
                cnt++;
                while(cnt<tab[i].fi){
                    replacementSeq[cur++]=cnt++;
                }
            }
            return cur; 
        }
           
    }
    
    //----------------------
    long long binpow(long long x,long long m){
        x%=MOD;
        long long res=1;
        while(m){
            if(m%2) res=res*x%MOD;
            x=x*x%MOD;
            m/=2;
        }
        return res;
    }
    int countReplacement(int n, int inputSeq[])
    {
        long long cur=1;
        set<int> st;
        if(!valid(n,inputSeq)) return 0;
        for (int i = 0; i < n; ++i)
        {
            st.insert(i);
        }
        for (int i = 0; i < n; ++i)
        {
            if(inputSeq[i]<=n) st.erase(inputSeq[i]);
        }
        if(st.size()==0) return 1;
        set<int> stt;
        for (int i = 0; i < n; ++i)
        {
            if(inputSeq[i]>n) stt.insert(inputSeq[i]);
        }
        int cnt=n;
        if(stt.size()==n) cur=n;
        while(stt.size()){
            //cout <<cnt<<endl;
            cur*=binpow(stt.size(),*stt.begin()-1-cnt)%MOD;
            cur%=MOD;
            cnt=*stt.begin();
            stt.erase(*stt.begin());
        }
        return cur;
    }

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:18:26: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   18 |         test&=(stt.size()==n);
      |                ~~~~~~~~~~^~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:47:22: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |         if(tab.size()==n){
      |            ~~~~~~~~~~^~~
gondola.cpp:51:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |             for (int i = 0; i < tab.size(); ++i)
      |                             ~~^~~~~~~~~~~~
gondola.cpp:69:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |             for (int i = 0; i < tab.size(); ++i)
      |                             ~~^~~~~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:113:22: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  113 |         if(stt.size()==n) cur=n;
      |            ~~~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory 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 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 7 ms 2140 KB Output is correct
7 Correct 19 ms 3756 KB Output is correct
8 Correct 12 ms 3932 KB Output is correct
9 Correct 5 ms 1368 KB Output is correct
10 Correct 19 ms 4444 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 8 ms 2140 KB Output is correct
7 Correct 21 ms 3676 KB Output is correct
8 Correct 14 ms 3928 KB Output is correct
9 Correct 5 ms 1372 KB Output is correct
10 Correct 17 ms 4444 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 9 ms 2140 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 25 ms 4612 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 444 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 360 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 440 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 5 ms 1116 KB Output is correct
12 Correct 6 ms 1076 KB Output is correct
13 Correct 9 ms 1436 KB Output is correct
14 Correct 5 ms 1116 KB Output is correct
15 Correct 12 ms 2388 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 600 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 444 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 49 ms 5944 KB Output is correct
10 Correct 36 ms 4700 KB Output is correct
11 Correct 16 ms 2396 KB Output is correct
12 Correct 17 ms 2816 KB Output is correct
13 Correct 3 ms 860 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 412 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 56 ms 5892 KB Output is correct
10 Correct 38 ms 4564 KB Output is correct
11 Correct 12 ms 2396 KB Output is correct
12 Correct 16 ms 2880 KB Output is correct
13 Correct 3 ms 860 KB Output is correct
14 Correct 58 ms 8520 KB Output is correct
15 Correct 69 ms 9580 KB Output is correct
16 Correct 9 ms 2392 KB Output is correct
17 Correct 41 ms 6488 KB Output is correct
18 Correct 21 ms 3932 KB Output is correct