oj.uz

Submission #1010877

# Submission time Handle Problem Language Result Execution time Memory
1010877 2024-06-29T13:05:16 Z Mardonbekhazratov Gondola (IOI14_gondola) C++17
55 / 100
 138 ms 262144 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;

int binpow(int a,int b){
    if(b==1) return a;
    if(b&1){
        return 1LL*a*binpow(a,b-1)%MOD;
    }
    int x=binpow(a,b/2);
    return 1LL*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:88:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |     for(int i=1;i<f.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
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 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

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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 7 ms 2140 KB Output is correct
7 Correct 27 ms 3792 KB Output is correct
8 Correct 14 ms 3928 KB Output is correct
9 Correct 5 ms 1368 KB Output is correct
10 Correct 18 ms 4524 KB Output is correct

Subtask #3
10.0 / 10.0

# 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 0 ms 348 KB Output is correct
6 Correct 7 ms 2140 KB Output is correct
7 Correct 20 ms 3712 KB Output is correct
8 Correct 14 ms 3932 KB Output is correct
9 Correct 5 ms 1548 KB Output is correct
10 Correct 19 ms 4652 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 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 27 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 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

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 1 ms 1372 KB Output is correct
4 Correct 1 ms 1204 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 1572 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 0 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 1368 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 15 ms 5408 KB Output is correct
12 Correct 17 ms 5980 KB Output is correct
13 Correct 15 ms 3420 KB Output is correct
14 Correct 15 ms 5208 KB Output is correct
15 Correct 15 ms 2952 KB Output is correct

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 135 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 133 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 136 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 138 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -