#include<bits/stdc++.h>
#include "art.h"
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
/*void __attribute__((noreturn)) __attribute__((format(printf, 1, 2))) result(const char *msg, ...) {
va_list args;
va_start(args, msg);
vfprintf(stdout, msg, args);
fprintf(stdout, "\n");
va_end(args);
exit(0);
}
namespace {
int N;
int Q = 0;
const int MAX_Q = 4000;
const int MAX_N = 4000;
vector<int> solution;
} // namespace
int publish(vector<int> R) {
printf("publish({");
for(int i = 0; i < int(R.size()); ++i) {
if(i == 0)
printf("%d", R[i]);
else
printf(", %d", R[i]);
}
printf("})\n");
fflush(stdout);
if (++Q > MAX_Q)
result("Too many published rankings!");
if (int(R.size()) != N)
result("Invalid published ranking!");
set<int> chosen;
for(auto &x : R) {
if(x < 1 || x > N || chosen.count(x))
result("Invalid published ranking!");
chosen.insert(x);
}
vector<int> positions(N+1);
for(int i = 0; i < N; ++i)
positions[R[i]] = i;
int complaints = 0;
for(int i = 0; i < N; ++i) {
for(int j = i+1; j < N; ++j) {
if(positions[solution[i]] > positions[solution[j]])
++complaints;
}
}
return complaints;
}
void __attribute__((noreturn)) answer(vector<int> R) {
printf("answer({");
for(int i = 0; i < int(R.size()); ++i) {
if(i == 0)
printf("%d", R[i]);
else
printf(", %d", R[i]);
}
printf("})\n");
fflush(stdout);
if(R == solution)
result("Correct: %d published ranking(s).", Q);
else
result("Wrong answer!");
}*/
void solve(int n){
vector<int>tmp;
for1(i,1,n)tmp.pb(i);
int inv=publish(tmp);
vector<int>ans;
for1(i,1,n){
if (i==1){
ans.pb(i);
continue;
}
else {
//large than i + y= inv
vector<int>cop;
cop.pb(i);
for(auto v:ans)cop.pb(v);
for1(j,i+1,n)cop.pb(j);
int newinv=publish(cop);
//less than i + y=newinv
int ninv=(newinv+inv-(i-1))/2;
int largethani=inv-ninv;
//cerr<<i<<" "<<largethani<<'\n';
vector<int>fr;
while (largethani--){
fr.pb(ans.back());
ans.pop_back();
}
ans.pb(i);
while (!fr.empty()){
ans.pb(fr.back());
fr.pop_back();
}
inv=inv;
}
}
answer(ans);
}
/*signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
//freopen(".INP","r",stdin);
//freopen(".OUT","w",stdout);
if (scanf("%d", &N) != 1 || N < 2 || N > MAX_N)
result("Invalid input!");
solution.resize(N);
set<int> chosen;
for(auto &x : solution) {
if(scanf("%d", &x) != 1 || x < 1 || x > N || chosen.count(x))
result("Invalid input!");
chosen.insert(x);
}
solve(N);
result("No answer!");
}*/
Compilation message
interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
20 | if(v.size() != N) {
| ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
36 | if(v.size() != N) {
| ~~~~~~~~~^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 6 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 6 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 6 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 6 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 6 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 6 |
4 |
Halted |
0 ms |
0 KB |
- |