제출 #1334708

#제출 시각아이디문제언어결과실행 시간메모리
1334708gohchingjaykCouncil (JOI23_council)C++20
41 / 100
4090 ms8696 KiB
#pragma GCC optimize("O3,inline")
#include <bits/stdc++.h>
 
using namespace std;
 
using ll = long long;

using ii = pair<int, int>;
using iii = pair<int, ii>;
using pvii = pair<vector<int>, ii>;

signed main() {
	ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);

	int N, M; cin >> N >> M;
	vector<int> mask(N);
	vector<int> counts(M);
	
	for (int i = 0; i < N; ++i) {
		for (int j = 0; j < M; ++j) {
			int x; cin >> x;
			counts[j] += x;
			mask[i] |= x << j;
		}
	}
	
	vector<int> mask_cnt(1 << M);
	for (int i = 0; i < N; ++i) mask_cnt[mask[i]]++;
	for (int i = 0; i < N; ++i) mask_cnt[mask[i]] = min(mask_cnt[mask[i]], 2);
	
	vector<int> augmented;
	for (int i = 0; i < (1 << M); ++i) {
		for (int j = 0; j < mask_cnt[i]; ++j) {
			augmented.emplace_back(i);
		}
	}
	
	vector<int> mask_ans(1 << M);
	for (int i = 0; i < augmented.size(); ++i) {
		
		int antimask = 0;
		for (int m = 0; m < M; ++m) {
			if (counts[m] - ((augmented[i] >> m) & 1) == N / 2) antimask |= 1 << m;
		}
		
		int best_idx = !i;
		for (int j = 0; j < augmented.size(); ++j) {
			if (i == j) continue;
			
			if (__builtin_popcount(~augmented[j] & antimask) > __builtin_popcount(~augmented[best_idx] & antimask)) {
				best_idx = j;
			}
		}
		
		int ans = 0;
		for (int m = 0; m < M; ++m) {
			if (counts[m] - ((augmented[i] >> m) & 1) - ((augmented[best_idx] >> m) & 1) >= N / 2) ans++;
		}
		
		mask_ans[augmented[i]] = ans;
	}
	
	for (int i = 0; i < N; ++i) {
		cout << mask_ans[mask[i]] << '\n';
	}
}
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