Submission #984596

#	Time	Username	Problem	Language	Result	Execution time	Memory
984596		FZ_Melo	ICC (CEOI16_icc)	C++14	0 / 100	1 ms	888 KiB

icc

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

int n;
vector<int> comp;
vector<vector<int>> nums;

int loga(int x){    
    int cnt=0;
    while((1<<(cnt+1))<=x)
        cnt++;
    return cnt;
}

int buscaComp(vector<pair<int, int>> &maybe){
    int l=0, r=maybe.size()-1;
    while(l<r){
        int mid=(l+r)/2;
        int ar1[101], ar2[101];
        int p1=0, p2=0;
        for(int i=l; i<=mid; i++){
            for(int x: nums[comp[maybe[i].first]])
                ar1[p1++]=x;
            for(int x: nums[comp[maybe[i].second]])
                ar2[p2++]=x;
        }
        if(query(p1, p2, ar1, ar2))
            r=mid;
        else
            l=mid+1;
    }
    return l;
}

int buscaNode(int c1, int c2){
    int p2=0;
    int ar2[101];
    for(int x: nums[comp[c2]])
        ar2[p2++]=x;
    int l=0, r=nums[comp[c1]].size()-1;
    while(l<r){
        int mid=(l+r)/2;
        int p1=0;
        int ar1[101];
        for(int i=l; i<=mid; i++)
            ar1[p1++]=nums[comp[c1]][i];
        if(query(p1, p2, ar1, ar2))
            r=mid;
        else
            l=mid+1;
    }
    return nums[comp[c1]][l];
}

void buscaAri(){
    int logn= loga(comp.size());
    int w=0;
    for(int k=0; k<=logn; k++){
        int p1=0, p2=0;
        int ar1[101], ar2[101];
        for(int i=0; i<comp.size(); i++){
            if((1<<k)&i){
                for(int x: nums[comp[i]])
                    ar1[p1++]=x;
            }
            else{
                for(int x: nums[comp[i]])
                    ar2[p2++]=x;
            }
        }
        if(query(p1, p2, ar1, ar2))
            w|=(1<<k);
    }
    
    vector<pair<int, int>> maybe;
    for(int i=0; i<comp.size(); i++){
        int j=j^i;
        if(i<j && j<comp.size()){
            maybe.push_back({i, j});
        }
    }

    int pos=buscaComp(maybe);
    int c1=maybe[pos].first, c2=maybe[pos].second;
    int a=1, b=1;
    a=buscaNode(c1, c2);
    b=buscaNode(c2, c1);
    comp.erase(comp.begin()+c2);
    for(int x: nums[comp[c2]])
        nums[comp[c1]].push_back(x);
    setRoad(a, b);
}


void run(int N){
    n=N;
    nums.clear();
    comp.clear();
    nums.resize(n+1);
    for(int i=1; i<=n; i++){
        nums[i].push_back(i);
        comp.push_back(i);
    }
    for(int i=0; i<n-1; i++){
        buscaAri();
    }
}

Compilation message (stderr)

icc.cpp: In function 'void buscaAri()':
icc.cpp:62:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |         for(int i=0; i<comp.size(); i++){
      |                      ~^~~~~~~~~~~~
icc.cpp:77:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |     for(int i=0; i<comp.size(); i++){
      |                  ~^~~~~~~~~~~~
icc.cpp:79:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |         if(i<j && j<comp.size()){
      |                   ~^~~~~~~~~~~~
icc.cpp:78:16: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
   78 |         int j=j^i;
      |               ~^~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 21
• Subtask 5: 0 / 29
• Subtask 6: 0 / 10