#include <bits/stdc++.h>
using namespace std;
int N;
int memo[3][410][410][410];
int rp[410],gp[410],yp[410];
int R;
int G;
int Y;
char lst[410];
const int inf = 1100100100;
bool visited[410];
int root[3][410][410];
int main(){
scanf(" %d",&N);
for(int i = 0; i < N; i++){
scanf(" %c",&lst[i]);
if(lst[i] == 'R'){
R++;
}
else if(lst[i] == 'G'){
G++;
}
else if(lst[i] == 'Y'){
Y++;
}
}
memo[0][R][G][Y] = 0;
memo[1][R][G][Y] = 0;
memo[2][R][G][Y] = 0;
int it = 0;
for(int i = 0; i < N; i++){
if(lst[i] == 'R'){
rp[it] = i;
it++;
}
}
it = 0;
for(int i = 0; i < N; i++){
if(lst[i] == 'G'){
gp[it] = i;
it++;
}
}
it = 0;
for(int i = 0; i < N; i++){
if(lst[i] == 'Y'){
yp[it] = i;
it++;
}
}
for(int i = 0; i <= N; i++){
root[0][R][i] = 0;
root[0][G][i] = 0;
root[0][Y][i] = 0;
}
for(int r = R - 1; r >= 0; r--){
for(int i = 0; i <= N; i++){
root[0][r][i] = root[0][r + 1][i];
if(i >= rp[r]) root[0][r][i]++;
}
}
for(int g = G - 1; g >= 0; g--){
for(int i = 0; i <= N; i++){
root[1][g][i] = root[1][g + 1][i];
if(i >= gp[g]) root[1][g][i]++;
}
}
for(int y = Y - 1; y >= 0; y--){
for(int i = 0; i <= N; i++){
root[2][y][i] = root[2][y + 1][i];
if(i >= yp[y]) root[2][y][i]++;
}
}
for(int i = N - 1; i >= 0; i--){
for(int r = 0; r <= min(R,i); r++){
for(int g = 0; g <= min(G,i - r); g++){
for(int y = 0; y <= min(Y,i - r - g); y++){
int j = r + g + y;
if(r == R || min(memo[1][r + 1][g][y], memo[2][r + 1][g][y]) == inf){
memo[0][r][g][y] = inf;
}
else{
memo[0][r][g][y] = min(memo[1][r + 1][g][y], memo[2][r + 1][g][y]) + j-rp[r]+root[0][r+1][rp[r]] + root[1][g][rp[r]] + root[2][y][rp[r]];
}
if(g == G || min(memo[0][r][g + 1][y], memo[2][r][g + 1][y]) == inf){
memo[1][r][g][y] = inf;
}
else{
memo[1][r][g][y] = min(memo[0][r][g + 1][y], memo[2][r][g + 1][y])+ j-gp[g]+root[0][r][gp[g]] + root[1][g+1][gp[g]] + root[2][y][gp[g]];
}
if(y == Y || min(memo[0][r][g][y + 1], memo[1][r][g][y + 1]) == inf){
memo[2][r][g][y] = inf;
}
else{
memo[2][r][g][y] = min(memo[0][r][g][y + 1], memo[1][r][g][y + 1])+ j-yp[y]+root[0][r][yp[y]] + root[1][g][yp[y]] + root[2][y+1][yp[y]];
}
}
}
}
}
if(min(memo[0][0][0][0],min(memo[1][0][0][0],memo[2][0][0][0])) != inf){
printf("%d",min(memo[0][0][0][0],min(memo[1][0][0][0],memo[2][0][0][0])));
}
else{
printf("-1");
}
}
/*
6
GGGGRRR
GRGRGRG
RGRGYG
*/
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
18 | scanf(" %d",&N);
| ~~~~~^~~~~~~~~~
joi2019_ho_t3.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
21 | scanf(" %c",&lst[i]);
| ~~~~~^~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
10588 KB |
Output is correct |
2 |
Correct |
1 ms |
10588 KB |
Output is correct |
3 |
Correct |
1 ms |
6488 KB |
Output is correct |
4 |
Correct |
1 ms |
8540 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10844 KB |
Output is correct |
7 |
Correct |
2 ms |
12892 KB |
Output is correct |
8 |
Correct |
1 ms |
10752 KB |
Output is correct |
9 |
Correct |
1 ms |
10656 KB |
Output is correct |
10 |
Correct |
2 ms |
14940 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8792 KB |
Output is correct |
14 |
Correct |
1 ms |
10844 KB |
Output is correct |
15 |
Correct |
1 ms |
10588 KB |
Output is correct |
16 |
Correct |
2 ms |
14940 KB |
Output is correct |
17 |
Correct |
1 ms |
6488 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
10588 KB |
Output is correct |
2 |
Correct |
1 ms |
10588 KB |
Output is correct |
3 |
Correct |
1 ms |
6488 KB |
Output is correct |
4 |
Correct |
1 ms |
8540 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10844 KB |
Output is correct |
7 |
Correct |
2 ms |
12892 KB |
Output is correct |
8 |
Correct |
1 ms |
10752 KB |
Output is correct |
9 |
Correct |
1 ms |
10656 KB |
Output is correct |
10 |
Correct |
2 ms |
14940 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8792 KB |
Output is correct |
14 |
Correct |
1 ms |
10844 KB |
Output is correct |
15 |
Correct |
1 ms |
10588 KB |
Output is correct |
16 |
Correct |
2 ms |
14940 KB |
Output is correct |
17 |
Correct |
1 ms |
6488 KB |
Output is correct |
18 |
Correct |
5 ms |
24412 KB |
Output is correct |
19 |
Correct |
5 ms |
20084 KB |
Output is correct |
20 |
Correct |
5 ms |
24412 KB |
Output is correct |
21 |
Correct |
5 ms |
22540 KB |
Output is correct |
22 |
Correct |
5 ms |
23900 KB |
Output is correct |
23 |
Correct |
5 ms |
20240 KB |
Output is correct |
24 |
Correct |
4 ms |
15548 KB |
Output is correct |
25 |
Correct |
6 ms |
34112 KB |
Output is correct |
26 |
Correct |
5 ms |
30044 KB |
Output is correct |
27 |
Correct |
6 ms |
27228 KB |
Output is correct |
28 |
Correct |
5 ms |
22364 KB |
Output is correct |
29 |
Correct |
5 ms |
22364 KB |
Output is correct |
30 |
Correct |
5 ms |
20348 KB |
Output is correct |
31 |
Correct |
4 ms |
18008 KB |
Output is correct |
32 |
Correct |
5 ms |
20312 KB |
Output is correct |
33 |
Correct |
5 ms |
25692 KB |
Output is correct |
34 |
Correct |
4 ms |
23132 KB |
Output is correct |
35 |
Correct |
5 ms |
24776 KB |
Output is correct |
36 |
Correct |
5 ms |
22104 KB |
Output is correct |
37 |
Correct |
4 ms |
17756 KB |
Output is correct |
38 |
Correct |
4 ms |
18012 KB |
Output is correct |
39 |
Correct |
5 ms |
20316 KB |
Output is correct |
40 |
Correct |
1 ms |
6576 KB |
Output is correct |
41 |
Correct |
3 ms |
13916 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
8540 KB |
Output is correct |
2 |
Correct |
198 ms |
239972 KB |
Output is correct |
3 |
Correct |
196 ms |
239080 KB |
Output is correct |
4 |
Correct |
204 ms |
239956 KB |
Output is correct |
5 |
Correct |
199 ms |
239952 KB |
Output is correct |
6 |
Correct |
189 ms |
239960 KB |
Output is correct |
7 |
Correct |
192 ms |
236948 KB |
Output is correct |
8 |
Correct |
190 ms |
236884 KB |
Output is correct |
9 |
Correct |
191 ms |
236092 KB |
Output is correct |
10 |
Correct |
204 ms |
239952 KB |
Output is correct |
11 |
Correct |
194 ms |
239832 KB |
Output is correct |
12 |
Correct |
36 ms |
97112 KB |
Output is correct |
13 |
Correct |
70 ms |
139860 KB |
Output is correct |
14 |
Correct |
119 ms |
179104 KB |
Output is correct |
15 |
Correct |
204 ms |
237524 KB |
Output is correct |
16 |
Correct |
212 ms |
237608 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
10588 KB |
Output is correct |
2 |
Correct |
1 ms |
10588 KB |
Output is correct |
3 |
Correct |
1 ms |
6488 KB |
Output is correct |
4 |
Correct |
1 ms |
8540 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10844 KB |
Output is correct |
7 |
Correct |
2 ms |
12892 KB |
Output is correct |
8 |
Correct |
1 ms |
10752 KB |
Output is correct |
9 |
Correct |
1 ms |
10656 KB |
Output is correct |
10 |
Correct |
2 ms |
14940 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8792 KB |
Output is correct |
14 |
Correct |
1 ms |
10844 KB |
Output is correct |
15 |
Correct |
1 ms |
10588 KB |
Output is correct |
16 |
Correct |
2 ms |
14940 KB |
Output is correct |
17 |
Correct |
1 ms |
6488 KB |
Output is correct |
18 |
Correct |
5 ms |
24412 KB |
Output is correct |
19 |
Correct |
5 ms |
20084 KB |
Output is correct |
20 |
Correct |
5 ms |
24412 KB |
Output is correct |
21 |
Correct |
5 ms |
22540 KB |
Output is correct |
22 |
Correct |
5 ms |
23900 KB |
Output is correct |
23 |
Correct |
5 ms |
20240 KB |
Output is correct |
24 |
Correct |
4 ms |
15548 KB |
Output is correct |
25 |
Correct |
6 ms |
34112 KB |
Output is correct |
26 |
Correct |
5 ms |
30044 KB |
Output is correct |
27 |
Correct |
6 ms |
27228 KB |
Output is correct |
28 |
Correct |
5 ms |
22364 KB |
Output is correct |
29 |
Correct |
5 ms |
22364 KB |
Output is correct |
30 |
Correct |
5 ms |
20348 KB |
Output is correct |
31 |
Correct |
4 ms |
18008 KB |
Output is correct |
32 |
Correct |
5 ms |
20312 KB |
Output is correct |
33 |
Correct |
5 ms |
25692 KB |
Output is correct |
34 |
Correct |
4 ms |
23132 KB |
Output is correct |
35 |
Correct |
5 ms |
24776 KB |
Output is correct |
36 |
Correct |
5 ms |
22104 KB |
Output is correct |
37 |
Correct |
4 ms |
17756 KB |
Output is correct |
38 |
Correct |
4 ms |
18012 KB |
Output is correct |
39 |
Correct |
5 ms |
20316 KB |
Output is correct |
40 |
Correct |
1 ms |
6576 KB |
Output is correct |
41 |
Correct |
3 ms |
13916 KB |
Output is correct |
42 |
Correct |
1 ms |
8540 KB |
Output is correct |
43 |
Correct |
198 ms |
239972 KB |
Output is correct |
44 |
Correct |
196 ms |
239080 KB |
Output is correct |
45 |
Correct |
204 ms |
239956 KB |
Output is correct |
46 |
Correct |
199 ms |
239952 KB |
Output is correct |
47 |
Correct |
189 ms |
239960 KB |
Output is correct |
48 |
Correct |
192 ms |
236948 KB |
Output is correct |
49 |
Correct |
190 ms |
236884 KB |
Output is correct |
50 |
Correct |
191 ms |
236092 KB |
Output is correct |
51 |
Correct |
204 ms |
239952 KB |
Output is correct |
52 |
Correct |
194 ms |
239832 KB |
Output is correct |
53 |
Correct |
36 ms |
97112 KB |
Output is correct |
54 |
Correct |
70 ms |
139860 KB |
Output is correct |
55 |
Correct |
119 ms |
179104 KB |
Output is correct |
56 |
Correct |
204 ms |
237524 KB |
Output is correct |
57 |
Correct |
212 ms |
237608 KB |
Output is correct |
58 |
Execution timed out |
1050 ms |
126288 KB |
Time limit exceeded |
59 |
Halted |
0 ms |
0 KB |
- |