Submission #340372

#	Time	Username	Problem	Language	Result	Execution time	Memory
340372		tengiz05	원형 문자열 (IZhO13_rowords)	C++17	76 / 100	2096 ms	12012 KiB

rowords

#include <bits/stdc++.h>
using namespace std;
#define FASTIO ios_base::sync_with_stdio(false); cin.tie(NULL);
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define pii pair<int, int>
#define ff first
#define ss second
#define PI acos(-1)
#define ld long double
template<class T> bool chmin(T& a, const T& b) {return a>b? a=b, true:false;}
template<class T> bool chmax(T& a, const T& b) {return a<b? a=b, true:false;}
const int mod = 1e9+7, N = 2005;
int msb(int val){return sizeof(int)*8-__builtin_clzll(val)-1;}
short int n, m, k;
string a, b;
string B;
int ans;
int dp[2005][2005];
int iter = 0;
inline void do_it_now(){
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			iter++;
			dp[i][j] = max(dp[i-1][j], dp[i][j-1]);
			if(a[i-1] == b[j-1]){
				chmax(dp[i][j], dp[i-1][j-1]+1);
			}
		}
	}
	chmax(ans, dp[n][m]);
}
void solve(int test_case){
	short int i, j;
	cin >> a >> B;
	if(a.length() < B.length())swap(a,B);
	n = a.length(), m = B.length();
	vector<int> idx(m);
	for(i=0;i<m;i++)idx[i] = i;
	unsigned seed = chrono::system_clock::now().time_since_epoch().count();
	shuffle(all(idx), default_random_engine(seed));
	for(i=0;i<m;i++){
		short int now = idx[i];
		b.erase(all(b));
		for(j=0;j<m;j++){
			if(now == m)now=0;
			b.pb(B[now]);
			now++;
		}
		do_it_now();
		reverse(all(b));
		do_it_now();
		if(iter > 4e8+657){
			break;
		}
	}
	cout << ans << '\n';
	return;
}
 
signed main(){
	FASTIO;
	solve(1);
	return 0;
}
 
 
 
 

• Subtask 1: 76 / 100