Submission #161732

#	Time	Username	Problem	Language	Result	Execution time	Memory
161732		dantoh000	Carnival (CEOI14_carnival)	C++14	Compilation error	0 ms	0 KiB

carnival

#include <bits/stdc++.h>
using namespace std;
int ans[155];
int first[155];
inline int query(int n){
    cout << n << " ";
    for (int i = 1; i <= n; i++) cout << i << " ";
    cout << endl;
    int ans;
    cin >> ans;
    return ans;
}
inline int query(int s, int e){
    cout << e-s+1 << " ";
    for (int i = s; i <= e; i++) cout << first[i] << " ";
    cout << endl;
    int ans;
    cin >> ans;
    return ans;
}
inline int query(int x, int s, int e){
    cout << e-s+2 << " ";
    cout << x << " ";
    for (int i = s; i <= e; i++) cout << first[i] << " ";
    cout << endl;
    int ans;
    cin >> ans;
    return ans;
}
int main(){
    cin >> n;
    int cur = 1;
    first[1] = 1;
    ans[1] = 1;
    int last = 1;
    for (int i = 2; i <= n; i++){
        int qf = query(i);
        if (qf == last){
            int lo = 1, hi = cur;
            while (lo+1 < hi){
                int mid =  (lo+hi)/2;
                if (query(i,lo,mid) == query(lo,mid)){
                    hi = mid;
                }
                else{
                    lo = mid;
                }
            }
            if (lo + 1 == hi){
                if (query(i,lo,lo) == 1){
                    hi = lo;
                }
                else lo = hi;
            }
            ans[i] = lo;
        }
        else{
            cur++;
            ans[i] = cur;
            first[cur] = i;
        }
        last = qf;
    }
    cout << "0 ";
    for (int i = 1; i <= n; i++) cout << ans[i] << " ";
    cout << endl;
    return 0;


}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:31:12: error: 'n' was not declared in this scope
     cin >> n;
            ^
carnival.cpp:31:12: note: suggested alternative: 'yn'
     cin >> n;
            ^
            yn