제출 #105569

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
105569		Pro_ktmr	Lamps (JOI19_lamps)	C++14	47 / 100	1068 ms	209932 KiB

lamp

#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")

#include"bits/stdc++.h"
using namespace std;
#define LL long long
#define MP make_pair
#define PB push_back

int N;
string A = "";
string B = "";

string allPatern[16] = {"","F","N","X","FN","NF","NX","XN","XF","FX","FNX","FXN","NFX","NXF","XFN","XNF"};

LL memo[16][16];
LL culc(int moto, int ato){
	string A = allPatern[moto];
	string B = allPatern[ato];
	for(int i=3; i>=1; i--){ //length
		for(int j=0; j+i-1<A.size(); j++){
			for(int k=0; k+i-1<B.size(); k++){
				
				for(int l=0; l<i; l++){
					if(A[j+l] != B[k+l]) break;
					if(l == i-1) return B.size()-i;
				}
				
			}
		}
	}
	return B.size();
}

LL dp[1000000][16];
bool already[1000000][16] = {};
LL solve(int now, int order){
	if(now == N) return 0;
	if(already[now][order]) return dp[now][order];
	already[now][order] = true;
	//cout << now << " " << order << endl;
	LL ans = LLONG_MAX;
	for(int i=0; i<16; i++){
		if(allPatern[i].back() == 'F' && B[now] == '1') continue;
		if(allPatern[i].back() == 'N' && B[now] == '0') continue;
		int tmp = A[now]-'0';
		for(int j=0; j<allPatern[i].size(); j++){
			if(allPatern[i][j] == 'F') tmp = 0;
			if(allPatern[i][j] == 'N') tmp = 1;
			if(allPatern[i][j] == 'X') tmp = tmp ^ 1;
		}
		if(tmp != B[now]-'0') continue;
		ans = min(ans, memo[order][i]+solve(now+1,i));
	}
	return dp[now][order] = ans;
}

int main(){
	scanf("%d", &N);
	for(int i=0; i<16; i++){
		for(int j=0; j<16; j++){
			memo[i][j] = culc(i, j);
		}
	}
	cin >> A >> B;
	cout << solve(0, 0) << endl;
	
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

lamp.cpp: In function 'long long int culc(int, int)':
lamp.cpp:22:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j+i-1<A.size(); j++){
                ~~~~~^~~~~~~~~
lamp.cpp:23:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int k=0; k+i-1<B.size(); k++){
                 ~~~~~^~~~~~~~~
lamp.cpp: In function 'long long int solve(int, int)':
lamp.cpp:48:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<allPatern[i].size(); j++){
                ~^~~~~~~~~~~~~~~~~~~~
lamp.cpp: In function 'int main()':
lamp.cpp:60:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 41 / 41
• Subtask 3: 0 / 4
• Subtask 4: 0 / 49