Submission #835814

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
835814	2023-08-23T20:52:20 Z	7mody	Gondola (IOI14_gondola)	C++17	Compilation error	0 ms	0 KB

gondola

#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
 
const int maxn = 250005;
const int mod=1e9+9;
 
map<int,int> mp;

ll power(ll a,ll n){
    ll res=1;
    while(n){
        if(n&1) res=(res*n)%mod;
        a=(a*a) % mod;
        n>>=1;
    }
    return res;
}

int valid(int n, int arr[]){
    int start=-1;
    for(int i=0; i < n;i++){
        if(mp[arr[i]]) return 0;
        mp[arr[i]]=true;
        if(arr[i]<=n){
            int curr=(i-arr[i]+1+n)%n;
            if(start==-1) start=curr;
            else if(start!=curr) return 0;
        }
    }
    return 1;
}

 
int replacement(int n, int arr[], int res[]){
    int start=-1;
    deque<int> dq(n);
    for(int i=0; i < n;i++){
        if(arr[i]<=n) start=(i-arr[i]+1+n)%n;
        dq[i]=arr[i];
    }
    while(start){
        dq.push_back(dq.front());
        dq.pop_front();
        start--;
    }
    vector<pair<int,int>> ans(n);
    for(int i=0; i < n;i++){
        ans.push_back({dq[i],i});
    }
    int size=0;
    int curr=n+1;
    for(int i=0; i < n;i++){
        if(dq[i]<=n) continue;
        res[size++]=ans[i].second+1;
        while(curr < ans[i].first) res[size++]=curr++;
        curr++;
    }
    return size;
}

 
ll countReplacement(int n, int arr[]){
    if(!valid(n,arr)) return 0;
    vector<ll> vec;
    ll curr=n;
    ll res=1;
    ll last=n;
    for(int i=0; i < n;i++){
        if(arr[i]<=n) curr--;
        else vec.push_back(arr[i]);
    }
    if(curr==n) res=n;
    for(ll x : vec){
        res=(res*power(curr,x-last-1))%mod;
        last=x;
    }
    return res;
}

Compilation message

gondola.cpp:64:4: error: ambiguating new declaration of 'll countReplacement(int, int*)'
   64 | ll countReplacement(int n, int arr[]){
      |    ^~~~~~~~~~~~~~~~
In file included from gondola.cpp:1:
gondola.h:12:5: note: old declaration 'int countReplacement(int, int*)'
   12 | int countReplacement(int n, int inputSeq[]);
      |     ^~~~~~~~~~~~~~~~