This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#include "icc.h"
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 100 + 2;
const int inf = 1e9;
vector<int> svi[N];
int aaa[N], bbb[N];
int Query(vector<int> a, vector<int> b) {
int A = a.size(); int B = b.size();
for (int i = 0; i < A; i++) aaa[i] = a[i];
for (int i = 0; i < B; i++) bbb[i] = b[i];
return query(A, B, aaa, bbb);
}
int gazda[N];
vector<int> G(vector<int> x, vector<int> y) {
while (x.size() > 1) {
vector<int> tmp[2];
for (int i = 0; i < x.size(); i++) tmp[i & 1].push_back(x[i]);
if (Query(tmp[0], y) == 1) x = tmp[0];
else x = tmp[1];
}
return x;
}
void run(int n) {
vector<int> v;
for (int i = 1; i <= n; i++) {
svi[i].push_back(i);
gazda[i] = i;
}
auto Sredi = [&] (vector<int> v) {
vector<int> ret;
for (int i = 0; i < v.size(); i++) {
for (int j : svi[v[i]]) ret.push_back(j);
}
return ret;
};
for (int zz = 0; zz < n - 1; zz++) {
vector<int> v;
for (int i = 1; i <= n; i++) {
if (gazda[i] == i) v.push_back(i);
}
int sz = v.size();
vector<int> a, b;
for (int i = 0; ; i++) {
for (int j = 0; j < sz; j++) {
if ((1 << i) & j) a.push_back(v[j]);
else b.push_back(v[j]);
}
auto aa = Sredi(a); auto bb = Sredi(b);
if (Query(aa, bb) == 1) break;
else {a.clear(); b.clear();}
}
a = Sredi(a); b = Sredi(b);
a = G(a, b);
b = G(b, a);
int inda = a[0]; int indb = b[0];
setRoad(inda, indb);
while (gazda[inda] != inda) inda = gazda[inda];
while (gazda[indb] != indb) indb = gazda[indb];
for (int i : svi[indb]) {
svi[inda].push_back(i);
gazda[i] = inda;
}
svi[indb].clear();
}
}
Compilation message (stderr)
icc.cpp: In function 'std::vector<int> G(std::vector<int>, std::vector<int>)':
icc.cpp:24:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
24 | for (int i = 0; i < x.size(); i++) tmp[i & 1].push_back(x[i]);
| ~~^~~~~~~~~~
icc.cpp: In lambda function:
icc.cpp:38:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
38 | for (int i = 0; i < v.size(); i++) {
| ~~^~~~~~~~~~
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