Submission #691593

#	Time	Username	Problem	Language	Result	Execution time	Memory
691593		penguin133	Visiting Singapore (NOI20_visitingsingapore)	C++17	16 / 100	918 ms	197332 KiB

VisitingSingapore

#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], n, m, k, a, b;

int dp(int x, int y){
	if(x == n + 1 || y == m + 1)return 0;
	if(memo[x][y] != -1)return memo[x][y];
	int res = max(dp(x+1, y), dp(x, y+1));
	if(S[x] == T[y])res = max(res, dp(x+1, y+1) + V[S[x]]);
	return memo[x][y] = res;
}

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));
	cout << dp(1, 1) << '\n';
}

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 (stderr)

VisitingSingapore.cpp:32:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   32 | main(){
      | ^~~~

• Subtask 1: 4 / 4
• Subtask 2: 0 / 6
• Subtask 3: 12 / 12
• Subtask 4: 0 / 7
• Subtask 5: 0 / 8
• Subtask 6: 0 / 13
• Subtask 7: 0 / 50