제출 #387147

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
387147		talant117408	벽 칠하기 (APIO20_paint)	C++17	28 / 100	1589 ms	11628 KiB

paint

#include "paint.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;

#define sz(v) (int)v.size()
#define pb push_back
#define mp make_pair
#define all(v) v.begin(), v.end()

const int MAXN = 1e5+7;
int n, m, k;
int color[MAXN];
//~ vector <int> isLiked[MAXN];
map <pii, bool> isLiked;

int minimumInstructions(int N, int M, int K, vector<int> C, vector<int> A, vector<vector<int>> B) {
	n = N; m = M; k = K;
	for (int i = 0; i < n; i++) color[i] = C[i];
	for (int i = 0; i < m; i++) {
		for (auto to : B[i]) {
			isLiked[mp(to, i)] = 1;
		}
	}
	int fk = 0;
	for (int i = 0; i < k; i++) {
		//fk = max(fk, sz(isLiked[i]));
	}
	
	/*if (fk < 2) {
		for (int i = 0; i+m < n; i++) {
			if (color[i] != color[i+m]) return -1;
		}
		if (sz(isLiked[color[0]]) == 0) {
			return -1;
		}
		else {
			int start = isLiked[color[0]].back();
			for (int i = 0; i < m; i++) {
				if (sz(isLiked[color[i]]) == 0 || isLiked[color[i]].back() != (start+i)%m) {
					return -1;
				}
			}	
		}
		return (n+m-1)/m;
	}
	else {*/
		vector <int> pos;
		for (int start = 0; start < m; start++) {
			int bad = 0;
			for (int i = 0; i < n; i++) {
				if (!isLiked.count(mp(color[i], (start+i)%m))) {
					bad++;
				}
				if (i >= m) {
					if (!isLiked.count(mp(color[i-m], (start+i-m)%m))) {
						bad--;
					}
				}
				if (i >= m-1 && bad == 0) {
					pos.pb(i-m+1);
				}
			}
		}
		sort(all(pos));
		if (sz(pos) == 0) return -1;
		vector <int> v;
		for (int i = 0; i < sz(pos); i++) {
			if (sz(v) == 0 || (sz(v) == 1 && v.back() != pos[i])) {
				v.pb(pos[i]);
			}
			else if (v[sz(v)-2]+m >= pos[i]) {
				v.pop_back();
				v.pb(pos[i]);
			}
			else if (v.back() != pos[i]) {
				v.pb(pos[i]);
			}
		}
		int flag = 1, cnt = 0;
		vector <int> pref(n), have(n);
		for (auto to : pos) {
			pref[to]++;
			if (to + m < n) pref[to+m]--;
		}
		for (int i = 0; i < n; i++) {
			cnt += pref[i];
			if (cnt) have[i] = 1;
		}
		for (int i = 0; i < n; i++) {
			if (!have[i]) flag = 0;
		}
		if (flag == 0) return -1;
		return sz(v);
//	}
	
	return 0;
}

/*
8 3 5
3 3 1 3 4 4 2 2
3 0 1 2
2 2 3
2 3 4
*/

컴파일 시 표준 에러 (stderr) 메시지

paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:29:6: warning: unused variable 'fk' [-Wunused-variable]
   29 |  int fk = 0;
      |      ^~

• Subtask 1: 0 / 12
• Subtask 2: 15 / 15
• Subtask 3: 13 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 37