제출 #22634

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
22634		버거킹 송죽SK점 우수고객 (#40)	Window XOR (KRIII5_WX)	C++14	0 / 7	1000 ms	10612 KiB

WX

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pp;
typedef pair<ll,ll> pll;
#define all(x) (x).begin(),(x).end()
#define pb push_back
#define x first
#define y second

int n, k;
ll t;
int a[2][100010];

int sp[20][100010];

void trans(int h, int F, int T){
	ll w = (1ll << h) % n;
	if(w == 0){
		if(k%2 == 0) for(int i=0; i<n; ++i) a[T][i]=0;
		else for(int i=0; i<n; ++i) a[T][i]=a[F][i];
		return;
	}
	for(int i=0; i<n; ++i){
		sp[0][i] = a[F][i];
	}
	for(int i=1; i<=16; ++i){
		for(int j=0; j<n; ++j){
			sp[i][j]=sp[i-1][j] ^ sp[i-1][(j+w*(1<<(i-1)))%n];
		}
	}
	for(int i=0; i<w; ++i){
		a[T][i] = 0;
		ll p=i;
		for(int j=16; 0<=j; --j){
			if(1&(k>>j)){
				a[T][i] ^= sp[j][p];
				p += w*(1<<j)%n;
				p %= n;
			}
		}
	}
	for(int i=w; i<n; ++i){
		a[T][i] = a[T][i-w] ^ a[F][i-w] ^ a[F][(i+w*(k-1))%n];
	}
}

int main()
{
	//freopen("out.txt", "w", stdout);
	//n=1e5; k=n/2; t=12345678987654;
	scanf("%d%d%lld", &n, &k, &t);
	int F=0, T=1;
	for(int i=0; i<n; ++i){
		//a[F][i]=rand()%int(1e9);
		scanf("%d", &a[F][i]);
	}
	for(int i=62; 0<=i; --i){
		if(1 & (t>>i)){
			trans(i, F, T);
			swap(F, T);
		}
	}
	for(int i=0; i<n; ++i){
		printf("%d ", a[F][i]);
	}
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

WX.cpp: In function 'int main()':
WX.cpp:52:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%lld", &n, &k, &t);
                               ^
WX.cpp:56:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[F][i]);
                        ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 5