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Submission #286350

# Submission time Handle Problem Language Result Execution time Memory
286350 2020-08-30T10:17:21 Z Dremix10 Gondola (IOI14_gondola) C++17
75 / 100
 24 ms 2296 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef pair<int,int> pi;
typedef pair<ll,ll> pl;
#define F first
#define S second
#define endl '\n'
#define all(x) (x).begin(),(x).end()
#ifdef dremix
    #define p(x) cerr<<#x<<" = "<<x<<endl;
    #define p2(x,y) cerr<<#x<<" , "<<#y<<" = "<<x<<" , "<<y<<endl;
    #define pp(x) cerr<<#x<<" = ("<<x.F<<" , "<<x.S<<")"<<endl;
    #define pv(x) cerr<<#x<<" = {";for(auto u : x)cerr<<u<<", ";cerr<<"}"<<endl;
    #define ppv(x) cerr<<#x<<" = {";for(auto u : x)cerr<<u.F<<"-"<<u.S<<", ";cerr<<"}"<<endl;
#else
    #define p(x)
    #define p2(x,y)
    #define pp(x)
    #define pv(x)
    #define ppv(x)
#endif
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
const int maxp = 22;
const ld EPS = 1e-18;
const ll INF = 1e18;
const int MOD = 1e9+9;
const int N = 3e5+1;


int valid(int n, int arr[]){
    bool v[N]={};
    int i;
    int idx = -1;
    for(i=0;i<n;i++){
        if(v[arr[i]])
            return 0;
        v[arr[i]]=1;
        if(arr[i]<=n)idx = i;
    }
    if(idx==-1)return 1;
    int curr = arr[idx];
    for(i=0;i<n;i++){
        if(arr[idx]<=n && arr[idx]!=curr)return 0;
        curr++;
        idx++;
        if(curr>n)curr-=n;
        idx%=n;
    }
    return 1;
}

int replacement(int n, int arr[], int ans[]){
    int pos = 0,curr = n+1,idx,maxi = 0;
    int i;
    int one = -1;
    vector<pi> seq;
    for(i=0;i<n;i++){
        if(arr[i]<=n)one = i;
        else seq.push_back({arr[i],i});
        if(arr[i]>maxi){
            maxi = arr[i];
            idx = i;
        }
    }
    sort(all(seq));
    int prev[n];
    int val;
    if(one==-1){
        one = 0;
        val = 1;
    }
    else
        val = arr[one];

    for(i=0;i<n;i++){
        prev[one] = val;
        val++;
        one++;
        if(val>n)val-=n;
        one%=n;
    }
    for(auto x : seq){
        while(curr!=x.F){
            ans[pos] = prev[idx];
            prev[idx] = curr;
            curr++;
            pos++;
        }
        ans[pos] = prev[x.S];
        prev[x.S] = curr;
        pos++;
        curr++;
    }
    return pos;
}

int countReplacement(int n, int arr[]){
    if(!valid(n,arr))return 0;
    ll ans = 1;
    vector<int> big;
    int i;
    for(i=0;i<n;i++)
        if(arr[i]>n)big.push_back(arr[i]);
    sort(all(big));
    reverse(all(big));
    //int pos = 0;
    int curr = n+1;

    while(big.size()){
        if(curr==big.back())big.pop_back();
        else ans = (ans*(ll)big.size())%MOD;
        curr++;
    }
    return ans;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:57:28: warning: 'idx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   57 |     int pos = 0,curr = n+1,idx,maxi = 0;
      |                            ^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 640 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 6 ms 768 KB Output is correct
7 Correct 14 ms 896 KB Output is correct
8 Correct 11 ms 896 KB Output is correct
9 Correct 4 ms 640 KB Output is correct
10 Correct 12 ms 896 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 6 ms 768 KB Output is correct
7 Correct 13 ms 896 KB Output is correct
8 Correct 11 ms 896 KB Output is correct
9 Correct 4 ms 640 KB Output is correct
10 Correct 14 ms 896 KB Output is correct
11 Correct 1 ms 640 KB Output is correct
12 Correct 1 ms 640 KB Output is correct
13 Correct 7 ms 768 KB Output is correct
14 Correct 1 ms 640 KB Output is correct
15 Correct 15 ms 896 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 14 ms 896 KB Output is correct
12 Correct 13 ms 1024 KB Output is correct
13 Correct 17 ms 1416 KB Output is correct
14 Correct 11 ms 896 KB Output is correct
15 Correct 24 ms 2296 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 1 ms 640 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 640 KB Output is correct

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 0 ms 640 KB Output is correct
6 Correct 0 ms 640 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 640 KB Output is correct
9 Correct 20 ms 1280 KB Output is correct
10 Correct 15 ms 1280 KB Output is correct
11 Correct 7 ms 896 KB Output is correct
12 Correct 7 ms 896 KB Output is correct
13 Incorrect 3 ms 640 KB Output isn't correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 1 ms 768 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 640 KB Output is correct
9 Correct 18 ms 1280 KB Output is correct
10 Correct 16 ms 1408 KB Output is correct
11 Correct 7 ms 896 KB Output is correct
12 Correct 8 ms 896 KB Output is correct
13 Incorrect 3 ms 640 KB Output isn't correct
14 Halted 0 ms 0 KB -