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 "icc.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 105;
int n;
int ok[maxn][maxn];
int ask(int u, int v) {
int a[1] = {u}, b[1] = {v};
return query(1, 1, a, b);
}
int chex(int u) {
int a[1] = {u}, b[maxn];
int sz_a = 1, sz_b = 0;
for(int i = 1; i <= n; i++) {
if(i == u) continue;
if(!ok[u][i]) {
b[sz_b++] = i;
}
}
if(!sz_b) return 0;
return query(sz_a, sz_b, a, b);
}
int find_another(int u) {
for(int i = 1; i <= n; i++) {
if(i == u) continue;
if(!ok[u][i]) {
if(ask(u, i)) {
return i;
}
}
} assert(false);
}
void run(int N) {
n = N;
while(true) {
int u = -1;
for(int i = 1; i <= n; i++) {
if(chex(i)) {
u = i;
break;
}
}
assert(u != -1);
int v = find_another(u);
if(u > v) swap(u, v);
setRoad(u, v);
ok[u][v] = 1;
ok[v][u] = 1;
// for(int u = 1; u <= n; u++) {
// for(int v = u + 1; v <= n; v++) {
// if(!ok[u][v]) {
// if(ask(u, v)) {
// setRoad(u, v);
// ok[u][v] = 1;
// ok[v][u] = 1;
// goto hell;
// }
// }
// }
// }
// assert(false);
// hell : ;
}
}
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