#include <bits/stdc++.h>
using namespace std;
#define minim(X, Y) (X = min(X, Y))
#define F(X, Y) for(int X = 0; X < Y; X++)
const int Z = 202, INF = 1e9;
int N, A[Z*2], DP[Z][Z][Z][3], p[3][Z*2], c[3], x, y, z;
int main() {
cin >> N, getchar();
F(i, N) {
char v = getchar();
A[i] = (v < 82) + (v < 89);
}
F(i, Z) F(j, Z) F(k, Z) F(l, 3)
DP[i][j][k][l] = (i || j || k) ? INF : 0;
F(i, N) {
if(++c[A[i]] >= Z-1) break;
p[A[i]][c[A[i]]] = i + 1;
F(j, i+1) F(k, i+1) {
if(A[i] == 0) x = c[0], y = j, z = k;
if(A[i] == 1) x = j, y = c[1], z = k;
if(A[i] == 2) x = j, y = k, z = c[2];
if(x) minim(DP[x][y][z][0], min(DP[x-1][y][z][1], DP[x-1][y][z][2]) + abs(p[0][x] - (x + y + z)));
if(y) minim(DP[x][y][z][1], min(DP[x][y-1][z][0], DP[x][y-1][z][2]) + abs(p[1][y] - (x + y + z)));
if(z) minim(DP[x][y][z][2], min(DP[x][y][z-1][0], DP[x][y][z-1][1]) + abs(p[2][z] - (x + y + z)));
}
}
int res = INF;
F(i, 3) minim(res, DP[c[0]][c[1]][c[2]][i]);
cout << (res > N*N ? -1 : res/2);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
43 ms |
97012 KB |
Output is correct |
2 |
Correct |
43 ms |
97056 KB |
Output is correct |
3 |
Correct |
44 ms |
97092 KB |
Output is correct |
4 |
Correct |
43 ms |
97044 KB |
Output is correct |
5 |
Correct |
53 ms |
97008 KB |
Output is correct |
6 |
Correct |
43 ms |
97000 KB |
Output is correct |
7 |
Correct |
42 ms |
97060 KB |
Output is correct |
8 |
Correct |
43 ms |
97004 KB |
Output is correct |
9 |
Incorrect |
43 ms |
96964 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
43 ms |
97012 KB |
Output is correct |
2 |
Correct |
43 ms |
97056 KB |
Output is correct |
3 |
Correct |
44 ms |
97092 KB |
Output is correct |
4 |
Correct |
43 ms |
97044 KB |
Output is correct |
5 |
Correct |
53 ms |
97008 KB |
Output is correct |
6 |
Correct |
43 ms |
97000 KB |
Output is correct |
7 |
Correct |
42 ms |
97060 KB |
Output is correct |
8 |
Correct |
43 ms |
97004 KB |
Output is correct |
9 |
Incorrect |
43 ms |
96964 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
47 ms |
97064 KB |
Output is correct |
2 |
Runtime error |
172 ms |
196640 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
43 ms |
97012 KB |
Output is correct |
2 |
Correct |
43 ms |
97056 KB |
Output is correct |
3 |
Correct |
44 ms |
97092 KB |
Output is correct |
4 |
Correct |
43 ms |
97044 KB |
Output is correct |
5 |
Correct |
53 ms |
97008 KB |
Output is correct |
6 |
Correct |
43 ms |
97000 KB |
Output is correct |
7 |
Correct |
42 ms |
97060 KB |
Output is correct |
8 |
Correct |
43 ms |
97004 KB |
Output is correct |
9 |
Incorrect |
43 ms |
96964 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |