CODE FESTIVAL 2016 Grand Final(Parallel)

Submission #1247868

Source codeソースコード

#include <bits/stdc++.h>
using namespace std;
 
using ll = long long;
 
int main() {
    int N;
    cin >> N;
    vector<int> v(N);
    vector<int> u(N);
    int xsum = 0;
    for(int i=0; i<N; ++i) {
        cin >> v[i];
        u[i] = v[i] ^ (v[i] - 1);
        xsum ^= v[i];
    }
    sort(u.begin(), u.end());
    u.erase(unique(u.begin(), u.end()), u.end());
    int res = 0;
    for(int i=30; i>=0; --i) {
        if(xsum & (1 << i) && binary_search(u.begin(), u.end(), (1 << (i+1)) - 1)) {
            xsum ^= (1 << (i+1)) - 1;
            res++;
        }
    }
    if(xsum != 0) {
        cout << -1 << endl;
    } else {
        cout << res << endl;
    }
}

Submission

Task問題 C - Cheating Nim
User nameユーザ名 vjudge1
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 500
Source lengthソースコード長 668 Byte
File nameファイル名
Exec time実行時間 45 ms
Memory usageメモリ使用量 1024 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - example0.txt,example1.txt
All 500 / 500 000.txt,001.txt,002.txt,003.txt,004.txt,005.txt,006.txt,007.txt,008.txt,009.txt,010.txt,011.txt,012.txt,013.txt,014.txt,015.txt,016.txt,017.txt,018.txt,019.txt,020.txt,021.txt,022.txt,023.txt,example0.txt,example1.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
000.txt AC 1 ms 256 KB
001.txt AC 1 ms 256 KB
002.txt AC 45 ms 1024 KB
003.txt AC 15 ms 768 KB
004.txt AC 17 ms 640 KB
005.txt AC 14 ms 512 KB
006.txt AC 44 ms 1024 KB
007.txt AC 44 ms 1024 KB
008.txt AC 44 ms 1024 KB
009.txt AC 44 ms 1024 KB
010.txt AC 44 ms 1024 KB
011.txt AC 44 ms 1024 KB
012.txt AC 44 ms 1024 KB
013.txt AC 44 ms 1024 KB
014.txt AC 44 ms 1024 KB
015.txt AC 44 ms 1024 KB
016.txt AC 44 ms 1024 KB
017.txt AC 44 ms 1024 KB
018.txt AC 44 ms 1024 KB
019.txt AC 44 ms 1024 KB
020.txt AC 44 ms 1024 KB
021.txt AC 5 ms 256 KB
022.txt AC 5 ms 256 KB
023.txt AC 42 ms 1024 KB
example0.txt AC 1 ms 256 KB
example1.txt AC 1 ms 256 KB