Submission #132238

#	Time	Username	Problem	Language	Result	Execution time	Memory
132238		rajarshi_basu	Dojave (COCI17_dojave)	C++14	0 / 140	4099 ms	4564 KiB

dojave

#include <iostream>
#include <vector>
#include <set>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <stdio.h>
#include <cmath>
#include <queue>
#include <string>
#include <map>
#include <fstream>
#include <complex>
#include <stack>
#include <bitset>
#include <set>

#define FOR(i,n) for(int i=0;i<n;i++)
#define FORE(i,a,b) for(int i=a;i<=b;i++)
#define ll long long int
#define vi vector<int>
#define ii pair<ll,ll>
#define pb push_back
#define mp make_pair
#define vv vector
#define ff first
#define ss second
#define pll pair<ll,ll>
#define cd complex<double> 
#define ld long double
#define pld pair<ld,ld>
#define iii pair<ii,int>

using namespace std;

const ll MOD = 998244353;

bool isV(int* arr,int n,int l,int r){
    int x = 0;
    int v = (1<<n)-1;
    n = 1 << n;
    FORE(i,l,r)x ^= arr[i];

    if(x == v)return 1;
    //cout << l << " " << r << " " << v << " " << x  << endl;

    FOR(i,n){
        if(l <= i and i <= r)continue;
        FOR(j,n){
            if(j < l or j > r)continue;
            //cout << i << " " << j << endl;
            if((x^arr[i]^arr[j]) == v){
                return 1;
            }
        }
        
    }
    cout << l+1 << " " << r+1 << " " << x << endl;
    return 0;
}


#define endl '\n'
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n;
    cin >> n;
    int n2 = n;
     n = 1<<n;
    int arr[n];
    FOR(i,n)cin >> arr[i];
    int ctr = 0;

    FOR(i,n){
        FOR(j,n){
            int sum = 0;
            FORE(x,i,j)sum ^= arr[x];
            if(i < j and sum == 0){
                ctr++;
              //  cout << "OO : " << i+1 << " " << j+1 << endl;
            }

            if(i <= j){
                //ctr += isV(arr,n2,i,j);
            }else{
                //cout << i+1 << " " << j+1 << endl;
            }
        }
    }
    ctr -= (arr[0] == 0 or arr[n-1] == 0);
    //cout << ctr << endl;
    cout << n*(n+1)/2 - ctr << endl;

    return 0;
}

Compilation message (stderr)

dojave.cpp: In function 'int main()':
dojave.cpp:71:9: warning: unused variable 'n2' [-Wunused-variable]
     int n2 = n;
         ^~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 14
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14
• Subtask 6: 0 / 14
• Subtask 7: 0 / 14
• Subtask 8: 0 / 14
• Subtask 9: 0 / 14
• Subtask 10: 0 / 14