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Submission #1010880

# Submission time Handle Problem Language Result Execution time Memory
1010880 2024-06-29T13:08:22 Z Mardonbekhazratov Gondola (IOI14_gondola) C++17
90 / 100
 40 ms 9060 KB 
#include "gondola.h"
#include<bits/stdc++.h>

using namespace std;

int valid(int n, int inputSeq[]){
    int mn=n,id=-1;
    map<int,int>cnt;
    for(int i=0;i<n;i++){
        cnt[inputSeq[i]]++;
        if(inputSeq[i]<=mn){
            mn=inputSeq[i];
            id=i;
        }
    }
    for(auto [x,y]:cnt){
        if(y>1) return 0;
    }
    if(mn==n) return 1;
    id=(id-mn+1+n)%n;
    for(int i=0;i<n;i++){
        if(inputSeq[(id+i)%n]==i+1 || inputSeq[(id+i)%n]>n) continue;
        return 0;
    }
    return 1;
}

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


int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    const int N=2.5e5;
    vector<int>cnt(N+1,0);
    int mn=N,id=0,mx=0;
    set<int>s;
    set<pair<int,int>>t;
    for(int i=0;i<n;i++){
        cnt[gondolaSeq[i]]++;
        if(gondolaSeq[i]<mn){
            mn=gondolaSeq[i];
            id=i;
        }
        mx=max(mx,gondolaSeq[i]);
        if(gondolaSeq[i]<=n) s.insert(gondolaSeq[i]);
        else t.insert({gondolaSeq[i],i});
    }
    if(mn<=n){
        id=(id-mn+1+n)%n;
    }
    int ans=0,last=n+1;
    for(auto [x,y]:t){
        int k=(y-id+n)%n;
        replacementSeq[ans++]=k+1;
        for(int j=last;j<x;j++) replacementSeq[ans++]=j;
        last=x+1;
    }
    return ans;
}

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


const int MOD=1e9+9;

long long binpow(int a,int b){
    if(b==0) return 1;
    if(b==1) return a;
    long long x=binpow(a,b/2);
    if(b&1){
        return a*x%MOD*x%MOD;
    }
    return x*x%MOD;
}

int countReplacement(int n, int inputSeq[]){
    if(!valid(n,inputSeq)){
        return 0;
    }
    int c=0;
    vector<int>cnt((int)2.5e5+2,0);
    vector<int>f={n};
    for(int i=0;i<n;i++){
        if(inputSeq[i]>n) f.push_back(inputSeq[i]),c++;
        cnt[inputSeq[i]]++;
    }
    sort(f.begin(),f.end());
    long long ans=1;
    if(c==n) ans=n;
    for(int i=1;i<f.size();i++){
        ans=ans*binpow(c,f[i]-f[i-1]-1)%MOD;
        c--;
    }
    return ans;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:89:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |     for(int i=1;i<f.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# 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 412 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 9 ms 2140 KB Output is correct
7 Correct 20 ms 3800 KB Output is correct
8 Correct 13 ms 3932 KB Output is correct
9 Correct 4 ms 1372 KB Output is correct
10 Correct 14 ms 4588 KB Output is correct

Subtask #3
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 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 2140 KB Output is correct
7 Correct 20 ms 3800 KB Output is correct
8 Correct 14 ms 3932 KB Output is correct
9 Correct 6 ms 1732 KB Output is correct
10 Correct 16 ms 4444 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 11 ms 2140 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 32 ms 4700 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 0 ms 1372 KB Output is correct
3 Correct 1 ms 1368 KB Output is correct
4 Correct 0 ms 1372 KB Output is correct
5 Correct 0 ms 1372 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 0 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1368 KB Output is correct
6 Correct 1 ms 1368 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 1 ms 1372 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1316 KB Output is correct
6 Correct 1 ms 1372 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 1 ms 1372 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 14 ms 5288 KB Output is correct
12 Correct 20 ms 5980 KB Output is correct
13 Correct 15 ms 3420 KB Output is correct
14 Correct 15 ms 5212 KB Output is correct
15 Correct 19 ms 2952 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1368 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1368 KB Output is correct
6 Correct 1 ms 1372 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1372 KB Output is correct
6 Correct 1 ms 1372 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 29 ms 3928 KB Output is correct
10 Correct 23 ms 4444 KB Output is correct
11 Correct 9 ms 2396 KB Output is correct
12 Correct 11 ms 2652 KB Output is correct
13 Correct 3 ms 1628 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1368 KB Output is correct
2 Correct 1 ms 1368 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 0 ms 1372 KB Output is correct
6 Correct 1 ms 1372 KB Output is correct
7 Correct 0 ms 1372 KB Output is correct
8 Correct 1 ms 1372 KB Output is correct
9 Correct 27 ms 4132 KB Output is correct
10 Correct 26 ms 4444 KB Output is correct
11 Correct 9 ms 2396 KB Output is correct
12 Correct 10 ms 2604 KB Output is correct
13 Correct 3 ms 1628 KB Output is correct
14 Runtime error 40 ms 9060 KB Execution killed with signal 11
15 Halted 0 ms 0 KB -