| # | Time | Username | Problem | Language | Result | Execution time | Memory | 
|---|---|---|---|---|---|---|---|
| 988206 | toan2602 | ICC (CEOI16_icc) | C++14 | 0 ms | 0 KiB | 
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"
using namespace std;
int par[105];
vector<int> node[105];
bool mark[105];
void make_set(int n) {
    for (int i = 1; i <= n; i++) {par[i] = -1; node[i].push_back(i);}
}
int find_anc(int x) {
    if(par[x] < 0) return x;
    return par[x] = find_anc(par[x]);
}
void union_set(int a, int b){
    a = find_anc(a);
    b = find_anc(b);
    if(a != b) {
        if(abs(par[a]) < abs(par[b])) swap(a, b);
        for (int i: node[b]) node[a].push_back(i);
        par[a] += par[b];
        par[b] = a;
    }
}
void run(int n) {
    vector<int> V, a, b, a2, b2;
    for (int i = 1; i < n; i++) {
        a.clear();
        b.clear();
        for (int j = 1; j <= n; j++) mark[j] = false;
        for (int j = 1; j <= n; j++) {
            if(!mark[find_anc(j)]) {
                mark[find_anc(j)] = true;
                V.push_back(find_anc(j));
            }
        }
        int sz = V.size(), mx = __lg(sz);
        for (int j = 0; j < mx; j++) {
            for (int v = 0; v < V.size(); v++) {
                if(v >> j & 1) {
                    for (int dm: node[V[v]]) a.push_back(dm);
                }
                else {
                    for (int dm: node[V[v]]) b.push_back(dm);
                }
            }
            int ans = query(a.size(), b.size(), a, b);
            if(ans == 1) {
                int l = 0, r = a.size() - 1, mid;
                while(l != r) {
                    mid = (l + r) / 2;
                    a2.clear();
                    for (int i = l; i <= mid; i++) {
                        a2.push_back(a[i]);
                    }
                    ans = query(a2.size(), b.size(), a2, b);
                    if(ans == 1) r = mid;
                    else l = mid + 1;
                }
                a2 = {v[l]};
                l = 0, r = b.size() - 1, mid;
                while(l != r) {
                    mid = (l + r) / 2;
                    b2.clear();
                    for (int i = l; i <= mid; i++) {
                        b2.push_back(b[i]);
                    }
                    ans = query(1, b2.size(), a2, b2);
                    if(ans == 1) r = mid;
                    else l = mid + 1;
                }
                b2 = {v[l]};
                break;
            }
        }
        setRoad(a2[0], b2[0]);
    }
}
//query
//setRoad
