#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
const bool typetest = 0;
const int N = 60 + 5;
const int Inf = 1e9 + 7;
int n;
string s;
int dp[N][N][N][3];
int r[N], g[N], y[N];
int a, b, c;
void Read()
{
cin >> n >> s;
s = " " + s;
for (int i = 1; i <= n; ++i)
{
if (s[i] == 'R')
r[++a] = i;
else if (s[i] == 'G')
g[++b] = i;
else
y[++c] = i;
}
}
inline void Min(int &x, int y)
{
if (x > y)
x = y;
}
void Solve()
{
fill_n(&dp[0][0][0][0], N * N * N * 3, Inf);
dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;
for (int i = 0; i <= a; ++i)
{
for (int j = 0; j <= b; ++j)
for (int t = 0; t <= c; ++t)
{
if (i != 0)
dp[i][j][t][0] = min(dp[i - 1][j][t][1], dp[i - 1][j][t][2]) + abs(i + j + t - r[i]);
if (j != 0)
dp[i][j][t][1] = min(dp[i][j - 1][t][0], dp[i][j - 1][t][2]) + abs(i + j + t - g[j]);
if (t != 0)
dp[i][j][t][2] = min(dp[i][j][t - 1][0], dp[i][j][t - 1][1]) + abs(i + j + t - y[t]);
}
}
int ans = min(dp[a][b][c][0], min(dp[a][b][c][1], dp[a][b][c][2]));
cout << (ans >= Inf ? -1 : ans / 2);
}
int32_t main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int t(1);
if (typetest)
cin >> t;
for (int _ = 1; _ <= t; ++_)
{
Read();
Solve();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
3564 KB |
Output is correct |
2 |
Correct |
2 ms |
3564 KB |
Output is correct |
3 |
Correct |
3 ms |
3564 KB |
Output is correct |
4 |
Correct |
2 ms |
3564 KB |
Output is correct |
5 |
Correct |
2 ms |
3564 KB |
Output is correct |
6 |
Correct |
3 ms |
3564 KB |
Output is correct |
7 |
Correct |
3 ms |
3564 KB |
Output is correct |
8 |
Correct |
3 ms |
3564 KB |
Output is correct |
9 |
Correct |
3 ms |
3564 KB |
Output is correct |
10 |
Correct |
3 ms |
3564 KB |
Output is correct |
11 |
Incorrect |
3 ms |
3564 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
3564 KB |
Output is correct |
2 |
Correct |
2 ms |
3564 KB |
Output is correct |
3 |
Correct |
3 ms |
3564 KB |
Output is correct |
4 |
Correct |
2 ms |
3564 KB |
Output is correct |
5 |
Correct |
2 ms |
3564 KB |
Output is correct |
6 |
Correct |
3 ms |
3564 KB |
Output is correct |
7 |
Correct |
3 ms |
3564 KB |
Output is correct |
8 |
Correct |
3 ms |
3564 KB |
Output is correct |
9 |
Correct |
3 ms |
3564 KB |
Output is correct |
10 |
Correct |
3 ms |
3564 KB |
Output is correct |
11 |
Incorrect |
3 ms |
3564 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
3564 KB |
Output is correct |
2 |
Runtime error |
8 ms |
7532 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
3564 KB |
Output is correct |
2 |
Correct |
2 ms |
3564 KB |
Output is correct |
3 |
Correct |
3 ms |
3564 KB |
Output is correct |
4 |
Correct |
2 ms |
3564 KB |
Output is correct |
5 |
Correct |
2 ms |
3564 KB |
Output is correct |
6 |
Correct |
3 ms |
3564 KB |
Output is correct |
7 |
Correct |
3 ms |
3564 KB |
Output is correct |
8 |
Correct |
3 ms |
3564 KB |
Output is correct |
9 |
Correct |
3 ms |
3564 KB |
Output is correct |
10 |
Correct |
3 ms |
3564 KB |
Output is correct |
11 |
Incorrect |
3 ms |
3564 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |