Submission #52613

#	Time	Username	Problem	Language	Result	Execution time	Memory
52613		someone_aa	cmp (balkan11_cmp)	C++17	46 / 100	6787 ms	104984 KiB

cmp

#include "cmp.h"
#include <vector>
using namespace std;
void remember(int n) {
    int node = 1;
    for(int i=11;i>=0;i--) {
        if(node != 1)
            bit_set(node);
        //bit[node] = true;
        if(n&(1<<i)) node = 2 * node + 1;
        else node = 2 * node;
    }
    //bit[node] = true;
    bit_set(node);
}

int compare(int b) {
    //edit this
    int node = 1;
    vector<int>nodes;
    for(int i=11;i>=0;i--) {
        nodes.push_back(node);
        if(b&(1<<i)) node = 2 * node + 1;
        else node = 2 * node;
    }
    nodes.push_back(node);

    int li = 0, ri = nodes.size()-1;
    int f = -1;
    while(li <= ri) {
        int mid = (li+ri)/2;
        
        bool check = false;
        if(mid == 0) check = true;
        else check = bit_get(nodes[mid]);
        
        if(check) {
            li = mid + 1;
            f = mid;
        }
        else ri = mid - 1;
    }

    if(f == nodes.size() -1) return 0;
    else {
        if(nodes[f] * 2 == nodes[f+1]) return -1;
        else return 1;
    }
}

Compilation message (stderr)

cmp.cpp: In function 'int compare(int)':
cmp.cpp:44:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(f == nodes.size() -1) return 0;
        ~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 46 / 100