Submission #1133271

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133271		qrn	ICC (CEOI16_icc)	C++20	Compilation error	0 ms	0 KiB

icc

// EDU = ivaniscoding.github.io
// EDU = ivaniscoding.github.io
// EDU = ivaniscoding.github.io

#include "icc.h";
#include <bits/stdc++.h>
using namespace std;

// int query(int a, int b, int a1[], int b1[]);
// void SetRoad(int a, int b);

struct DSU {
    vector<vector<int>> component;
    vector<int> parent, sze;
    DSU(int n) {
        for(int i = 1; i <= n; i++) {
            sze[i] = 1;
            parent[i] = i;
            component[i].push_back(i);
        }
    }
    
    int root(int x) {
        if(x == parent[x]) return x;
        else return parent[x] = root(parent[x]);
    }

    void unite(int a, int b) {
        a = root(a);
        b = root(b);
        if(a == b) return;

        if(sze[a] < sze[b]) swap(a, b);

        sze[a] += sze[b];
        parent[b] = a;
        for(auto u : component[b]) component[a].push_back(u);
        component[b].clear();
    }
};

void run(int N) {

    srand(time(0));
    DSU dsu(N + 1);
    for(int turn = 0; turn < N; turn++) {
        vector<int> upA, downA, total, UpA;

        for(int i = 1; i <= N; i++) {
            if(dsu.root(i) == i) {
                total.push_back(i);
            }
        }
        random_shuffle(total.begin(), total.end());

        while(true) { 
            for(int i = 0; i < total.size() / 2; i++) {
                int head = total[i];
                for(int j = 0; j < dsu.component[head].size(); j++) {
                    upA.push_back(dsu.component[head][j]);
                }
            }
            for(int i = total.size() / 2; i < total.size(); i++) {
                int head = total[i];
                for(int j = 0; j < dsu.component[head].size(); j++) {
                    downA.push_back(dsu.component[head][j]);
                }
            }
            if(query((int)upA.size(), (int)downA.size(), upA.data(), downA.data())) {
                break;
            } else {
                upA.clear();
                downA.clear();
            }
        }
        UpA = upA;

        int l = 0, r = upA.size() - 1;
        while(l < r) {
            int mid = (l + r) / 2;
            vector<int> left, right;
            for(int i = 0; i <= mid; i++) left.push_back(upA[i]);
            for(int i = mid + 1; i < upA.size(); i++) right.push_back(upA[i]);

            if(query((int)left.size(), (int)downA.size(), left.data(), downA.data())) {
                upA = left;
                r = mid;
            } else {
                upA = right;
                l = mid + 1;
            }
        }

        l = 0, r = downA.size() - 1;
        while(l < r) {
            int mid = (l + r) / 2;
            vector<int> left, right;
            for(int i = 0; i <= mid; i++) left.push_back(downA[i]);
            for(int i = mid + 1; i < downA.size(); i++) right.push_back(downA[i]);

            if(query((int)left.size(), (int)UpA.size(), left.data(), UpA.data())) {
                downA = left; 
                r = mid;
            } else {
                downA = right;
                l = mid + 1;
            }
        }
        int ep1 = upA[0], ep2 = downA[0];
        SetRoad(ep1, ep2);
        dsu.unite(ep1, ep2);
    }
}

Compilation message (stderr)

icc.cpp:6:17: warning: extra tokens at end of #include directive
    6 | #include "icc.h";
      |                 ^
icc.cpp: In function 'void run(int)':
icc.cpp:111:9: error: 'SetRoad' was not declared in this scope; did you mean 'setRoad'?
  111 |         SetRoad(ep1, ep2);
      |         ^~~~~~~
      |         setRoad