Submission #387600

#	Time	Username	Problem	Language	Result	Execution time	Memory
387600		casperwang	Football (info1cup20_football)	C++14	100 / 100	32 ms	580 KiB

football

#include <bits/stdc++.h>
using namespace std;
#define debug(args) kout("[ " + string(#args) + " ]", args)
void kout() { cerr << endl; }
template <class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ',kout(b...); }
template <class T> void pary(T L, T R) { while (L != R) cerr << *L << " \n"[++L==R]; }

const int MAXN = 100000;
int T, N, K;
int a[MAXN];
string ans;

inline int lb(int a) {
	return a &- a;
}

bool solve(int k) {
	int cnt = 0;
	for (int i = 0; i < N; i++) {
		cnt += (a[i] & 1);
	}
	if (cnt % 2) return true;
	for (int i = 0; i < N; i++) {
		a[i] /= 2;
	}
	return false;
}

signed main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> T;
	while (T--) {
		cin >> N >> K;
		for (int i = 0; i < N; i++) {
			cin >> a[i];
		}
		bool flag = false;
		for (int i = 1; i <= K && !flag; i *= 2) {
			flag |= solve(i);
		}
		ans += (flag ? '1' : '0');
	}
	cout << ans << '\n';
}

• Subtask 1: 26 / 26
• Subtask 2: 8 / 8
• Subtask 3: 11 / 11
• Subtask 4: 8 / 8
• Subtask 5: 16 / 16
• Subtask 6: 16 / 16
• Subtask 7: 7 / 7
• Subtask 8: 8 / 8