#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 5000;
int N;
char A[MAXN+10];
ll dp[MAXN+10][MAXN+10];
vector<int> V[10];
vector<int>::iterator low[MAXN+10][10], upp[MAXN+10][10];
ll solve(int now, int pos)
{
ll &ret=dp[now][pos];
if(ret!=-1) return ret;
ret=1e18;
for(int i=0; i<10; i++)
{
if(i==4) continue;
auto it=upp[now][i];
if(it==V[i].end()) continue;
ret=min(ret, solve(*it, pos)+2);
}
if(now>pos)
{
ll p=now-pos+low[now][4]-low[pos][4];
auto jt=upp[now][4];
if(jt==V[4].end()) ret=min(ret, p);
else
{
for(int i=0; i<10; i++)
{
if(i==4) continue;
auto it=upp[pos+1][i];
if(it==V[i].end()) continue;
ret=min(ret, solve(*it, *jt)+p+2);
}
}
}
//printf("%d %d : %d\n", now, pos, ret);
return ret;
}
int main()
{
scanf("%*d", &N);
scanf(" %s", A+1);
N=strlen(A+1);
for(int i=1; i<=N; i++) V[A[i]-'a'].push_back(i);
for(int j=0; j<10; j++) for(int i=1; i<=N; i++) low[i][j]=lower_bound(V[j].begin(), V[j].end(), i);
for(int j=0; j<10; j++) for(int i=1; i<=N; i++) upp[i][j]=upper_bound(V[j].begin(), V[j].end(), i);
if(V[4].empty()) return !printf("0\n");
memset(dp, -1, sizeof(dp));
printf("%lld\n", solve(1, V[4].front()));
}
Compilation message
vim.cpp: In function 'int main()':
vim.cpp:52:17: warning: too many arguments for format [-Wformat-extra-args]
scanf("%*d", &N);
^
vim.cpp:52:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%*d", &N);
~~~~~^~~~~~~~~~~
vim.cpp:53:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf(" %s", A+1);
~~~~~^~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
104 ms |
196860 KB |
Output is correct |
| 2 |
Correct |
104 ms |
196856 KB |
Output is correct |
| 3 |
Correct |
102 ms |
196856 KB |
Output is correct |
| 4 |
Correct |
104 ms |
196856 KB |
Output is correct |
| 5 |
Correct |
104 ms |
196856 KB |
Output is correct |
| 6 |
Correct |
107 ms |
196880 KB |
Output is correct |
| 7 |
Correct |
107 ms |
196856 KB |
Output is correct |
| 8 |
Correct |
98 ms |
196856 KB |
Output is correct |
| 9 |
Correct |
99 ms |
196856 KB |
Output is correct |
| 10 |
Correct |
101 ms |
196856 KB |
Output is correct |
| 11 |
Correct |
99 ms |
196856 KB |
Output is correct |
| 12 |
Correct |
100 ms |
196856 KB |
Output is correct |
| 13 |
Correct |
103 ms |
196860 KB |
Output is correct |
| 14 |
Correct |
105 ms |
196856 KB |
Output is correct |
| 15 |
Correct |
106 ms |
196856 KB |
Output is correct |
| 16 |
Correct |
104 ms |
196856 KB |
Output is correct |
| 17 |
Correct |
101 ms |
196984 KB |
Output is correct |
| 18 |
Correct |
106 ms |
196856 KB |
Output is correct |
| 19 |
Correct |
105 ms |
196856 KB |
Output is correct |
| 20 |
Correct |
117 ms |
196856 KB |
Output is correct |
| 21 |
Correct |
105 ms |
196856 KB |
Output is correct |
| 22 |
Correct |
117 ms |
196984 KB |
Output is correct |
| 23 |
Correct |
112 ms |
196984 KB |
Output is correct |
| 24 |
Correct |
115 ms |
196856 KB |
Output is correct |
| 25 |
Correct |
108 ms |
197012 KB |
Output is correct |
| 26 |
Correct |
105 ms |
196856 KB |
Output is correct |
| 27 |
Correct |
108 ms |
196856 KB |
Output is correct |
| 28 |
Correct |
109 ms |
196856 KB |
Output is correct |
| 29 |
Correct |
109 ms |
196856 KB |
Output is correct |
| 30 |
Correct |
105 ms |
196856 KB |
Output is correct |
| 31 |
Correct |
106 ms |
196984 KB |
Output is correct |
| 32 |
Correct |
117 ms |
196940 KB |
Output is correct |
| 33 |
Correct |
106 ms |
196860 KB |
Output is correct |
| 34 |
Correct |
106 ms |
196856 KB |
Output is correct |
| 35 |
Correct |
105 ms |
196820 KB |
Output is correct |
| 36 |
Correct |
105 ms |
196856 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
584 ms |
197752 KB |
Output isn't correct |
| 2 |
Correct |
1137 ms |
197868 KB |
Output is correct |
| 3 |
Incorrect |
288 ms |
197240 KB |
Output isn't correct |
| 4 |
Incorrect |
569 ms |
197720 KB |
Output isn't correct |
| 5 |
Correct |
1048 ms |
197736 KB |
Output is correct |
| 6 |
Correct |
978 ms |
197764 KB |
Output is correct |
| 7 |
Incorrect |
723 ms |
197752 KB |
Output isn't correct |
| 8 |
Incorrect |
729 ms |
197664 KB |
Output isn't correct |
| 9 |
Correct |
1077 ms |
197704 KB |
Output is correct |
| 10 |
Correct |
1042 ms |
197752 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Runtime error |
9 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Runtime error |
9 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 3 |
Runtime error |
10 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 4 |
Runtime error |
10 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 5 |
Runtime error |
12 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 6 |
Runtime error |
11 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 7 |
Runtime error |
11 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 8 |
Runtime error |
9 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 9 |
Runtime error |
11 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 10 |
Runtime error |
11 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 11 |
Runtime error |
11 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 12 |
Runtime error |
9 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 13 |
Runtime error |
9 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 14 |
Runtime error |
9 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 15 |
Runtime error |
9 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 16 |
Runtime error |
9 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 17 |
Runtime error |
10 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 18 |
Runtime error |
10 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 19 |
Runtime error |
10 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 20 |
Runtime error |
9 ms |
384 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
