Submission #63280

# Submission time Handle Problem Language Result Execution time Memory
63280 2018-08-01T08:28:05 Z 윤교준(#1834) Vim (BOI13_vim) C++11
51 / 100
2000 ms 71148 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];
int dp[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 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 = dp[t][x+1] + D[IV[y]][IV[t]] + D[IV[t]][IV[x+1]];
					if(tmp < ret) ret = tmp;
				}
			}
		}
	}
	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 2296 KB Output is correct
2 Correct 18 ms 2796 KB Output is correct
3 Correct 10 ms 2796 KB Output is correct
4 Correct 14 ms 2796 KB Output is correct
5 Correct 16 ms 2796 KB Output is correct
6 Correct 19 ms 3132 KB Output is correct
7 Correct 19 ms 3132 KB Output is correct
8 Correct 3 ms 3132 KB Output is correct
9 Correct 3 ms 3132 KB Output is correct
10 Correct 3 ms 3132 KB Output is correct
11 Correct 3 ms 3132 KB Output is correct
12 Correct 3 ms 3132 KB Output is correct
13 Correct 13 ms 3132 KB Output is correct
14 Correct 15 ms 3132 KB Output is correct
15 Correct 11 ms 3132 KB Output is correct
16 Correct 18 ms 3132 KB Output is correct
17 Correct 20 ms 3236 KB Output is correct
18 Correct 14 ms 3236 KB Output is correct
19 Correct 10 ms 3236 KB Output is correct
20 Correct 12 ms 3236 KB Output is correct
21 Correct 13 ms 3236 KB Output is correct
22 Correct 16 ms 3236 KB Output is correct
23 Correct 15 ms 3308 KB Output is correct
24 Correct 19 ms 3308 KB Output is correct
25 Correct 17 ms 3308 KB Output is correct
26 Correct 16 ms 3308 KB Output is correct
27 Correct 18 ms 3308 KB Output is correct
28 Correct 20 ms 3308 KB Output is correct
29 Correct 19 ms 3308 KB Output is correct
30 Correct 17 ms 3308 KB Output is correct
31 Correct 16 ms 3308 KB Output is correct
32 Correct 20 ms 3308 KB Output is correct
33 Correct 17 ms 3308 KB Output is correct
34 Correct 16 ms 3308 KB Output is correct
35 Correct 17 ms 3308 KB Output is correct
36 Correct 20 ms 3308 KB Output is correct
# Verdict Execution time Memory Grader output
1 Execution timed out 2062 ms 28312 KB Time limit exceeded
2 Execution timed out 2094 ms 45256 KB Time limit exceeded
3 Correct 843 ms 45256 KB Output is correct
4 Execution timed out 2011 ms 45256 KB Time limit exceeded
5 Execution timed out 2024 ms 47724 KB Time limit exceeded
6 Execution timed out 2029 ms 71148 KB Time limit exceeded
7 Execution timed out 2011 ms 71148 KB Time limit exceeded
8 Execution timed out 2028 ms 71148 KB Time limit exceeded
9 Execution timed out 2107 ms 71148 KB Time limit exceeded
10 Execution timed out 2092 ms 71148 KB Time limit exceeded
# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Runtime error 14 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Runtime error 12 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Runtime error 13 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
5 Runtime error 11 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 14 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 15 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Runtime error 15 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Runtime error 10 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Runtime error 11 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
11 Runtime error 14 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
12 Runtime error 13 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
13 Runtime error 10 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
14 Runtime error 14 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
15 Runtime error 14 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
16 Runtime error 12 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
17 Runtime error 14 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
18 Runtime error 11 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Runtime error 13 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 13 ms 71148 KB Execution killed with signal 11 (could be triggered by violating memory limits)