Submission #306788

#	Time	Username	Problem	Language	Result	Execution time	Memory
306788		vipghn2003	Gondola (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

#include<bits/stdc++.h>

using namespace std;

const int mod=1e9+7;

int Power(int x,int n)
{
    if(!n) return 1;
    if(n%2) return 1ll*Power(x,n-1)*x%mod;
    int tmp=Power(x,n/2);
    return 1ll*tmp*tmp%mod;
}

int countReplacement(int n,int inputSeq[])
{
    vector<int>b(n);
    for(int i=0;i<n;i++) inputSeq[i]--;
    int res=0;
    for(int i=0;i<n;i++)
    {
        int cnt=i;
        bool kt=true;
        vector<int>cur;
        for(int j=0;j<n;j++)
        {
            if(cnt>=n) cnt=0;
            b[j]=cnt;
            cnt++;
            if(b[j]>inputSeq[j]) kt=false;
            else
            {
                if(inputSeq[j]>(n-1)) cur.push_back(inputSeq[j]-n+1);
            }
        }
        if(!kt) continue;
        sort(cur.begin(),cur.end());
        int sz=cur.size();
        int val=Power(sz,cur[0]-1);
        for(int j=1;j<sz;j++)
        {
            if(cur[j]==cur[j-1])
            {
                val=0;
                break;
            }
            val=1ll*val*Power(sz-j,cur[j]-cur[j-1]-1)%mod;
        }
        //cout<<val<<'\n';
        res=(res+val)%mod;
    }
    return res;
}
/*
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin>>n;
    int a[n];
    for(int i=0;i<n;i++) cin>>a[i];
    cout<<countReplacement(n,a);
}*/

Compilation message (stderr)

/tmp/ccJ1VLhv.o: In function `main':
grader.cpp:(.text.startup+0xa2): undefined reference to `valid'
grader.cpp:(.text.startup+0xee): undefined reference to `countReplacement'
grader.cpp:(.text.startup+0x112): undefined reference to `replacement'
collect2: error: ld returned 1 exit status