#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#define FOR(i, x, y) for(int i = x; i < y; i++)
typedef long long ll;
using namespace std;
int a[151];
void solve(int lower, int upper, int l, int r) {
if (l == r) a[l] = lower;
else {
int mid = (l + r) / 2;
cout << mid - l + 1 << ' ';
FOR(i, l, mid + 1) cout << i << ' ';
cout << endl;
int k;
cin >> k;
solve(lower, lower + k - 1, l, mid);
cout << r - mid << ' ';
FOR(i, mid + 1, r + 1) cout << i << ' ';
cout << endl;
int k;
cin >> k;
solve(upper - k + 1, upper, mid + 1, r);
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n;
cin >> n;
cout << n << ' ';
FOR(i, 1, n + 1) cout << i << ' ';
cout << endl;
int k;
cin >> k;
solve(1, k, 1, n);
cout << "0 ";
FOR(i, 1, n + 1) cout << a[i] << ' ';
cout << endl;
return 0;
}
Compilation message
carnival.cpp: In function 'void solve(int, int, int, int)':
carnival.cpp:22:13: error: redeclaration of 'int k'
int k;
^
carnival.cpp:16:13: note: 'int k' previously declared here
int k;
^
