Submission #212389

#	Time	Username	Problem	Language	Result	Execution time	Memory
212389		Rayaabualjamal	Chameleon's Love (JOI20_chameleon)	C++14	4 / 100	24 ms	424 KiB

chameleon

#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <algorithm>
#include <cmath>
#include <queue>
#include <iomanip> 
#define rep(i, a, b) for (int i = a; i < b; i++)
#define per(j, a, b) for (int j = a; j >= b; j--)
#include "chameleon.h"
#include <cstdio>
#include <cstdlib>
using namespace std;




vector <int> sub_vector(int b, int e, vector <int>& f){
    vector <int> r(e-b);
    rep(i,0,e-b){
        r[i]=f[i+b];
    }
    return r;
}
int binary(int s, int ee, int e, vector <int>& curr){
    int start=s, end = ee;
    while(start!=end-1)
    {
        int middle = (start+end)/2;
        //cout << "s&m&e: " <<  start << " "  << middle << " " << end << endl;
        vector <int> sub = sub_vector(middle,e, curr);
        //cout << "binaryvec: ";
        // rep(i,0,sub.size()){
        //     cout << sub[i] << " ";
        // }
        //cout << endl;
        int see = Query(sub);
        if(sub.size()==see)
            end=middle;
        else
            start=middle;
    }
    return start;
}
void Solve(int N) {
    int n=N*2;
    vector <int> kkk(n+1);
    rep(i,0,n+1)kkk[i]=i;
    vector <int> curr;
    rep(i,1,n+1){
        curr.push_back(i);
        if(Query(curr)==curr.size()){
            continue;
        }
        // rep(i,0,curr.size()){
        //     cout << curr[i] << " ";
        // }
        //cout << endl;
        int start=0, end = curr.size(), e = curr.size();
        int remov = binary(0, curr.size(), curr.size(), curr);
        //cout << i << " s " << curr[remov] << " " << remov << endl;
        Answer(curr[remov], i);
        curr.pop_back();
    }
}

Compilation message (stderr)

chameleon.cpp: In function 'int binary(int, int, int, std::vector<int>&)':
chameleon.cpp:40:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(sub.size()==see)
            ~~~~~~~~~~^~~~~
chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:54:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(Query(curr)==curr.size()){
            ~~~~~~~~~~~^~~~~~~~~~~~~
chameleon.cpp:61:13: warning: unused variable 'start' [-Wunused-variable]
         int start=0, end = curr.size(), e = curr.size();
             ^~~~~
chameleon.cpp:61:22: warning: unused variable 'end' [-Wunused-variable]
         int start=0, end = curr.size(), e = curr.size();
                      ^~~
chameleon.cpp:61:41: warning: unused variable 'e' [-Wunused-variable]
         int start=0, end = curr.size(), e = curr.size();
                                         ^

• Subtask 1: 4 / 4
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36