Submission #1363209

#	Time	Username	Problem	Language	Result	Execution time	Memory
1363209		yc11	Guessing Game (EGOI23_guessinggame)	C++20	Compilation error	0 ms	0 KiB

guessinggame

#include<bits/stdc++.h>
#define int long long
using namespace std;
int k;
signed main(){
    int n;
    int p,n;
    cin>>p>>n;
    if (p==1){
    cout<<n<<endl;
    int p=-1;
    for (int i = 0;i<n-1;i++){
        int x;
        cin>>x;
        if (p==-1) cout<<x+1<<endl;
        else{
            cout<<p+1<<endl;
        }
        p = x;
    }
    }
    else{
    vector<int> n1;
    n1.resize(n);
    vector<int> n2;
    vector<vector<int> > n3;
    n3.resize(n);
    for (int i = 0;i<n1.size();i++) {
        cin>>n1[i];
        n1[i]--;
        if (n1[i]==i) n3[i].push_back(i);
        else{
            n3[i].push_back(n1[i]);
            n3[n1[i]].push_back(i);
        }
    }
    for (int i = 0;i<n;i++){
        if (n3[i].size()==1) n2.push_back(i+1);
    }
    if (n2.size()==1) cout<<n2[0]<<" "<<n2[0]<<endl;
    else cout<<n2[0]<<" "<<n2[1]<<"\n";
    }




}

Compilation message (stderr)

guessinggame.cpp: In function 'int main()':
guessinggame.cpp:7:11: error: redeclaration of 'long long int n'
    7 |     int p,n;
      |           ^
guessinggame.cpp:6:9: note: 'long long int n' previously declared here
    6 |     int n;
      |         ^