oj.uz

Submission #691610

# Submission time Handle Problem Language Result Execution time Memory
691610 2023-01-31T10:28:30 Z penguin133 Visiting Singapore (NOI20_visitingsingapore) C++17
23 / 100
 72 ms 536 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif

int S[5005], T[5005], V[5005], memo[5005][5005][2][2], n, m, k, a, b;
/*
int dp(int x, int y, bool f, bool f2){
	if(y == m + 1)return 0;
	if(x == n + 1)return b * (m - y + 1) + (!f2 ? a : 0);
	if(memo[x][y][f][f2] != -1)return memo[x][y][f][f2];
	int res = max(dp(x+1, y, 1, f2) + b + (!f ? a : 0), dp(x, y+1, f, 1) + b + (!f2 ? a : 0));
	if(S[x] == T[y])res = max(res, dp(x+1, y+1, 0, 0) + V[S[x]]);
	return memo[x][y][f][f2] = res;
}
*/
int dp[2][5005][2][2];
void solve(){
	cin >> k >> n >> m >> a >> b;
	for(int i=1;i<=k;i++)cin >> V[i];
	for(int i=1;i<=n;i++)cin >> S[i];
	for(int i=1;i<=m;i++)cin >> T[i];
	/*
	memset(memo, -1, sizeof(memo));
	int res = -1e18;
	for(int i=1;i<=n;i++)res = max(res, dp(i, 1, 0, 0));
	cout << res;
	*/
	int res = -1e18;
	for(int i=0;i<=m;i++)dp[0][i][0][0] = dp[0][i][1][1] = dp[0][i][1][0] = dp[0][i][0][1] = -1e18;
	dp[0][0][0][0] = 0;
	for(int i=1;i<=n;i++){
		int x = i&1;
		dp[x][0][0][0] = 0;
		dp[x][0][0][1] = dp[x][0][1][0] = dp[x][0][1][1] = -1e18;
		for(int j=1;j<=m;j++){
			dp[x][j][0][0] = (S[i] == T[j] ? max({dp[1-x][j-1][0][0], dp[1-x][j-1][0][1], dp[1-x][j-1][1][0], dp[1-x][j-1][1][1]}) + V[S[i]] : (int)-1e18);
			dp[x][j][0][1] = max(dp[x][j-1][0][0] + a + b, dp[x][j-1][0][1] + b);
			dp[x][j][1][0] = max(dp[1-x][j][0][0] + a + b, dp[1-x][j][1][0] + b);
			dp[x][j][1][1] = max({
								dp[1-x][j-1][0][0] + a * 2 + b * 2,
								dp[1-x][j-1][0][1] + a + b * 2,
								dp[1-x][j-1][1][0] + a + b * 2,
								dp[1-x][j-1][1][1] + b * 2
								});
			res = max(res, dp[x][j][0][0] + (m - j) * b + (m == j ? 0 : a));
			res = max(res, dp[x][j][1][0] + (m - j) * b + (m == j ? 0 : a));
			res = max(res, dp[x][j][0][1] + (m - j) * b);
			res = max(res, dp[x][j][1][1] + (m - j) * b);
		}
	}
	cout << res;
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int tc = 1;
	//cin >> tc;
	for(int tc1=1;tc1<=tc;tc1++){
		// cout << "Case #" << tc1 << ": ";
		solve();
	}
}

Compilation message

VisitingSingapore.cpp:62:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   62 | main(){
      | ^~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 8 ms 428 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 6 ms 340 KB Output is correct
10 Correct 11 ms 436 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 324 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 3 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 332 KB Output is correct
6 Correct 5 ms 340 KB Output is correct
7 Correct 7 ms 428 KB Output is correct
8 Correct 7 ms 420 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 10 ms 340 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 452 KB Output is correct
2 Correct 10 ms 432 KB Output is correct
3 Incorrect 72 ms 536 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 452 KB Output is correct
2 Correct 10 ms 432 KB Output is correct
3 Incorrect 72 ms 536 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 452 KB Output is correct
2 Correct 10 ms 432 KB Output is correct
3 Incorrect 72 ms 536 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 324 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #7
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 8 ms 428 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 6 ms 340 KB Output is correct
10 Correct 11 ms 436 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 3 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 332 KB Output is correct
16 Correct 5 ms 340 KB Output is correct
17 Correct 7 ms 428 KB Output is correct
18 Correct 7 ms 420 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 10 ms 340 KB Output is correct
21 Correct 26 ms 452 KB Output is correct
22 Correct 10 ms 432 KB Output is correct
23 Incorrect 72 ms 536 KB Output isn't correct
24 Halted 0 ms 0 KB -