Submission #57588

#	Time	Username	Problem	Language	Result	Execution time	Memory
57588		vex	Gondola (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

#include<bits/stdc++.h>
#define maxn 250005
#define MOD 1000000009
#define pii pair<int,int>
using namespace std;

int n;
int a[maxn];
int b[maxn];

int valid()
{
    int minn=0;
    for(int i=1;i<n;i++)if(a[i]<a[minn])minn=i;

    for(int i=0;i<n;i++)b[i]=a[(i+minn)%n];
    if(b[0]>n)return true;

    sort(a,a+n);
    for(int i=0;i<n-1;i++)if(a[i]==a[i+1])return false;

    int pre=0;
    for(int i=1;i<n;i++)
    {
        if(b[i]<=n)
        {
            if(b[i]-b[pre]!=i-pre)return false;
            pre=i;
        }
    }
    return true;
}

vector<pii>v;
void replacement()
{
    if(!valid())return;

    int s=b[0];
    for(int i=0;i<n;i++)if(b[i]>n)
    {
        int br=(s+i)%n;if(br==0)br=n;
        v.push_back({b[i],br});
    }
    sort(v.begin(),v.end());

    int len=v.size();
    if(len==0)
    {
        cout<<"0"<<endl;
        return;
    }

    cout<<v[len-1].first-n<<endl;
    for(int i=0;i<len;i++)
    {
        cout<<v[i].second<<" ";
        int pre=n;
        if(i!=0)pre=v[i-1].first;

        for(int j=pre+1;j<v[i].first;j++)cout<<j<<" ";
    }
}

long long ste(int x,int y)
{
    if(y==0)return 1;
    if(y%2==1)return (ste(x,y-1)*x)%MOD;

    long long res=ste(x,y/2);
    return (res*res)%MOD;
}

vector<int>br;
long long broj()
{
    if(!valid())return 0;

    for(int i=0;i<n;i++)if(b[i]>n)br.push_back(b[i]);
    sort(br.begin(),br.end());

    long long sol=1;
    int len=br.size();
    for(int i=0;i<len;i++)
    {
        int pre=n;
        if(i!=0)pre=br[i-1];
        sol*=ste(len-i,br[i]-pre-1);
    }
    return sol;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t;
    cin>>t;
    cin>>n;
    for(int i=0;i<n;i++)cin>>a[i];

    if(t<=3)cout<<valid()<<endl;
    else if(t<=6)replacement();
    else cout<<broj()<<endl;

    return 0;
}

Compilation message (stderr)

/tmp/ccYantmp.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccQRDTKp.o:gondola.cpp:(.text.startup+0x0): first defined here
/tmp/ccYantmp.o: In function `main':
grader.cpp:(.text.startup+0xc3): undefined reference to `countReplacement'
grader.cpp:(.text.startup+0xe2): undefined reference to `valid'
grader.cpp:(.text.startup+0x106): undefined reference to `replacement'
collect2: error: ld returned 1 exit status