Submission #63283

# Submission time Handle Problem Language Result Execution time Memory
63283 2018-08-01T08:31:22 Z 윤교준(#1834) Vim (BOI13_vim) C++11
56 / 100
2000 ms 128392 KB
#include <bits/stdc++.h>
#define rf(x) (x)=0;while(*p<48)p++;while(47<*p)(x)=((x)<<3)+((x)<<1)+(*p++&15);
#define pb push_back
#define eb emplace_back
#define sz(V) ((int)(V).size())
#define befv(V) ((V)[(sz(V)-2)])
#define allv(V) ((V).begin()),((V).end())
#define sorv(V) sort(allv(V))
#define revv(V) reverse(allv(V))
#define univ(V) (V).erase(unique(allv(V)),(V).end())
#define clv(V) (V).clear()
#define upmin(a,b) (a)=min((a),(b))
#define upmax(a,b) (a)=max((a),(b))
#define INF (0x3f3f3f3f)
#define INFLL (0x3f3f3f3f3f3f3f3fll)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const bool debug = 0;
const int MAXN = 5005;

vector<pii> G[MAXN];
int D[MAXN][MAXN], E[MAXN][MAXN], F[MAXN][MAXN];
int dp[MAXN][MAXN], rdp[MAXN][MAXN];

vector<int> CV[11];
vector<int> IV;

int B[MAXN];
char A[MAXN];

int N, Ans;

int main() {
	scanf("%d %s", &N, A+1);

	{
		vector<int> V, VI(1, 0);
		for(int i = 1; i <= N; i++) {
			if('e' == A[i]) {
				Ans += 2;
				continue;
			}
			V.eb(A[i]-'a'+1);
			if('e' == A[i-1]) VI.eb(sz(V)-1);
		}

		N = sz(V);
		for(int i = 1; i <= N; i++)
			B[i] = V[i-1];
		for(int v : VI) IV.eb(v+1);
	}
	if(!Ans) {
		puts("0");
		return 0;
	}

	if(debug) {
		printf("N=%d\n", N);
		for(int i = 1; i <= N; i++)
			printf("%d ", B[i]);
		puts("");
		for(int v : IV) printf("%d ", v);
		puts("");
	}

	for(int i = 1; i <= N; i++) CV[B[i]].eb(i);
	for(int i = 2; i <= N; i++) G[i].eb(i-1, 1);
	{
		int col[11] = {0, };
		for(int i = N; i; i--) {
			for(int j = 1; j <= 10; j++)
				if(col[j]) G[i].eb(col[j], 2);
			col[B[i]] = i;
		}
	}
	
	for(int i = 1; i <= N; i++) {
		priority_queue<pii, vector<pii>, greater<pii>> PQ;
		fill(D[i], D[i]+N+1, INF);
		D[i][i] = 0; PQ.push(pii(0, i));
		
		for(int idx, dst; !PQ.empty();) {
			tie(dst, idx) = PQ.top(); PQ.pop();
			if(D[i][idx] < dst) continue;

			for(auto &e : G[idx]) {
				int nidx = e.first;
				int ndst = dst + e.second;

				if(D[i][nidx] <= ndst) continue;
				D[i][nidx] = ndst;
				PQ.push(pii(ndst, nidx));
			}
		}
	}

	{
		int n = sz(IV);
		
		for(int i = 0; i < n; i++) for(int j = 0; j < n; j++) {
			E[i][j] = D[IV[i]][IV[j]];
			F[i][j] = D[IV[j]][IV[i]];
		}

		for(int x = n-1; x--;) {
			for(int y = 0; y <= x; y++) {
				int &ret = dp[x][y]; ret = INF;
				for(int t = x+1, tmp; t < n; t++) {
					tmp = rdp[x+1][t] + E[y][t] + F[x+1][t];
					if(tmp < ret) ret = tmp;
				}
				rdp[y][x] = ret;
			}
		}
	}
	Ans += dp[0][0];

	cout << Ans << endl;
	return 0;
}

Compilation message

vim.cpp: In function 'int main()':
vim.cpp:38:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %s", &N, A+1);
  ~~~~~^~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 14 ms 4472 KB Output is correct
2 Correct 14 ms 5096 KB Output is correct
3 Correct 10 ms 5096 KB Output is correct
4 Correct 14 ms 5096 KB Output is correct
5 Correct 9 ms 5120 KB Output is correct
6 Correct 22 ms 6528 KB Output is correct
7 Correct 15 ms 6528 KB Output is correct
8 Correct 3 ms 6528 KB Output is correct
9 Correct 2 ms 6528 KB Output is correct
10 Correct 3 ms 6528 KB Output is correct
11 Correct 2 ms 6528 KB Output is correct
12 Correct 3 ms 6528 KB Output is correct
13 Correct 10 ms 6528 KB Output is correct
14 Correct 13 ms 6528 KB Output is correct
15 Correct 10 ms 6528 KB Output is correct
16 Correct 12 ms 6528 KB Output is correct
17 Correct 17 ms 6528 KB Output is correct
18 Correct 12 ms 6528 KB Output is correct
19 Correct 10 ms 6528 KB Output is correct
20 Correct 14 ms 6528 KB Output is correct
21 Correct 15 ms 6528 KB Output is correct
22 Correct 13 ms 6528 KB Output is correct
23 Correct 14 ms 6528 KB Output is correct
24 Correct 18 ms 6528 KB Output is correct
25 Correct 19 ms 6528 KB Output is correct
26 Correct 16 ms 6528 KB Output is correct
27 Correct 14 ms 6528 KB Output is correct
28 Correct 16 ms 6528 KB Output is correct
29 Correct 16 ms 6528 KB Output is correct
30 Correct 16 ms 6528 KB Output is correct
31 Correct 15 ms 6528 KB Output is correct
32 Correct 19 ms 6528 KB Output is correct
33 Correct 17 ms 6528 KB Output is correct
34 Correct 15 ms 6528 KB Output is correct
35 Correct 15 ms 6528 KB Output is correct
36 Correct 21 ms 6528 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1112 ms 72584 KB Output is correct
2 Execution timed out 2071 ms 128392 KB Time limit exceeded
3 Correct 391 ms 128392 KB Output is correct
4 Correct 1295 ms 128392 KB Output is correct
5 Execution timed out 2088 ms 128392 KB Time limit exceeded
6 Correct 1650 ms 128392 KB Output is correct
7 Correct 1361 ms 128392 KB Output is correct
8 Correct 1258 ms 128392 KB Output is correct
9 Execution timed out 2073 ms 128392 KB Time limit exceeded
10 Execution timed out 2067 ms 128392 KB Time limit exceeded
# Verdict Execution time Memory Grader output
1 Runtime error 16 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Runtime error 16 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Runtime error 21 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Runtime error 18 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
5 Runtime error 18 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 14 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 15 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Runtime error 18 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Runtime error 17 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Runtime error 19 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
11 Runtime error 22 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
12 Runtime error 18 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
13 Runtime error 25 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
14 Runtime error 21 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
15 Runtime error 17 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
16 Runtime error 15 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
17 Runtime error 21 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
18 Runtime error 17 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Runtime error 16 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 24 ms 128392 KB Execution killed with signal 11 (could be triggered by violating memory limits)