이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#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);
~~~~~^~~~~~~~~~
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