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Submission #340376

# Submission time Handle Problem Language Result Execution time Memory
340376 2020-12-27T13:33:42 Z tengiz05 Round words (IZhO13_rowords) C++17
72 / 100
 2000 ms 11944 KB 
#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+1231231){
			break;
		}
	}
	cout << ans << '\n';
	return;
}
 
signed main(){
	FASTIO;
	solve(1);
	return 0;
}

Subtask #1
72.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 620 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 91 ms 4716 KB Output is correct
7 Correct 1611 ms 8252 KB Output is correct
8 Execution timed out 2043 ms 8172 KB Time limit exceeded
9 Incorrect 1883 ms 8300 KB Output isn't correct
10 Incorrect 1596 ms 8300 KB Output isn't correct
11 Incorrect 1571 ms 9068 KB Output isn't correct
12 Correct 1628 ms 9836 KB Output is correct
13 Incorrect 1727 ms 9836 KB Output isn't correct
14 Correct 1599 ms 9452 KB Output is correct
15 Correct 1592 ms 10112 KB Output is correct
16 Execution timed out 2044 ms 8812 KB Time limit exceeded
17 Correct 1679 ms 9580 KB Output is correct
18 Incorrect 1623 ms 11524 KB Output isn't correct
19 Correct 1587 ms 8252 KB Output is correct
20 Correct 1932 ms 10220 KB Output is correct
21 Correct 328 ms 8216 KB Output is correct
22 Correct 966 ms 9388 KB Output is correct
23 Correct 1676 ms 10084 KB Output is correct
24 Correct 1718 ms 10732 KB Output is correct
25 Correct 1680 ms 11944 KB Output is correct