#include<bits/stdc++.h>
using namespace std;
int l;
char s[402];
int nR=0,nG=0,nY=0;
int pos[3][402];
int acc[402][3];
void init()
{
scanf("%d ",&l);
scanf("%s",s);
acc[0][0]=acc[0][1]=acc[0][2]=0;
for(int i=0;i<l;i++)
{
if(i)
{
acc[i][0]=acc[i-1][0];
acc[i][1]=acc[i-1][1];
acc[i][2]=acc[i-1][2];
}
if(s[i]=='R')
{
pos[0][nR]=i;
acc[i][0]++;
nR++;
}
else if(s[i]=='G')
{
pos[1][nG]=i;
acc[i][1]++;
nG++;
}
else
{
pos[2][nY]=i;
acc[i][2]++;
nY++;
}
}
}
int dp[202][202][202][3];
int MAX_INT = 1900000000;
int solve(int arr[],int typ)
{
if(dp[arr[0]][arr[1]][arr[2]][typ]>=0) return dp[arr[0]][arr[1]][arr[2]][typ];
int arr_copy[3]={arr[0],arr[1],arr[2]};
if(arr_copy[typ]==0) return dp[arr[0]][arr[1]][arr[2]][typ] = MAX_INT;
arr_copy[typ]--;
int carry = 0;
for(int i=0;i<3;i++)
{
if(i==typ) continue;
carry += max(0,arr_copy[i]-acc[pos[typ][arr_copy[typ]]][i]);
}
int dpBefore = MAX_INT;
for(int i=0;i<3;i++)
{
if(i==typ) continue;
dpBefore = min(dpBefore,solve(arr_copy,i));
}
return dp[arr[0]][arr[1]][arr[2]][typ] = dpBefore+carry;
}
int main()
{
init();
if(max(nR,max(nG,nY)) > (l+1)/2)
{
printf("-1");
return 0;
}
for(int i1=0;i1<=nR;i1++)
{
for(int i2=0;i2<=nG;i2++)
{
for(int i3=0;i3<=nY;i3++)
{
dp[i1][i2][i3][0]=dp[i1][i2][i3][1]=dp[i1][i2][i3][2]=-1;
}
}
}
dp[0][0][0][0]=dp[0][0][0][1]=dp[0][0][0][2]=0;
for(int i1=0;i1<=nR;i1++)
{
for(int i2=0;i2<=nG;i2++)
{
for(int i3=0;i3<=nY;i3++)
{
int arr[3] = {i1,i2,i3};
solve(arr,0);
solve(arr,1);
solve(arr,2);
}
}
}
printf("%d",min(dp[nR][nG][nY][0],min(dp[nR][nG][nY][1],dp[nR][nG][nY][2])));
}
Compilation message
joi2019_ho_t3.cpp: In function 'void init()':
joi2019_ho_t3.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
12 | scanf("%d ",&l);
| ~~~~~^~~~~~~~~~
joi2019_ho_t3.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
13 | scanf("%s",s);
| ~~~~~^~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
460 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
460 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
1356 KB |
Output is correct |
19 |
Correct |
1 ms |
1100 KB |
Output is correct |
20 |
Correct |
2 ms |
1356 KB |
Output is correct |
21 |
Correct |
2 ms |
1452 KB |
Output is correct |
22 |
Correct |
1 ms |
972 KB |
Output is correct |
23 |
Correct |
1 ms |
1228 KB |
Output is correct |
24 |
Correct |
1 ms |
972 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
27 |
Correct |
2 ms |
1868 KB |
Output is correct |
28 |
Correct |
1 ms |
1356 KB |
Output is correct |
29 |
Correct |
2 ms |
1356 KB |
Output is correct |
30 |
Correct |
1 ms |
1356 KB |
Output is correct |
31 |
Correct |
2 ms |
1196 KB |
Output is correct |
32 |
Correct |
1 ms |
1484 KB |
Output is correct |
33 |
Correct |
0 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
204 KB |
Output is correct |
35 |
Correct |
2 ms |
1612 KB |
Output is correct |
36 |
Correct |
2 ms |
1100 KB |
Output is correct |
37 |
Correct |
1 ms |
1100 KB |
Output is correct |
38 |
Correct |
2 ms |
1228 KB |
Output is correct |
39 |
Correct |
1 ms |
1356 KB |
Output is correct |
40 |
Correct |
0 ms |
204 KB |
Output is correct |
41 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
38 ms |
96400 KB |
Output is correct |
3 |
Correct |
38 ms |
95948 KB |
Output is correct |
4 |
Correct |
38 ms |
96436 KB |
Output is correct |
5 |
Correct |
37 ms |
96428 KB |
Output is correct |
6 |
Correct |
47 ms |
96376 KB |
Output is correct |
7 |
Correct |
43 ms |
96004 KB |
Output is correct |
8 |
Correct |
46 ms |
95900 KB |
Output is correct |
9 |
Correct |
38 ms |
95428 KB |
Output is correct |
10 |
Correct |
38 ms |
96424 KB |
Output is correct |
11 |
Correct |
38 ms |
96328 KB |
Output is correct |
12 |
Correct |
10 ms |
26096 KB |
Output is correct |
13 |
Correct |
19 ms |
45744 KB |
Output is correct |
14 |
Correct |
27 ms |
65860 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
460 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
1356 KB |
Output is correct |
19 |
Correct |
1 ms |
1100 KB |
Output is correct |
20 |
Correct |
2 ms |
1356 KB |
Output is correct |
21 |
Correct |
2 ms |
1452 KB |
Output is correct |
22 |
Correct |
1 ms |
972 KB |
Output is correct |
23 |
Correct |
1 ms |
1228 KB |
Output is correct |
24 |
Correct |
1 ms |
972 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
27 |
Correct |
2 ms |
1868 KB |
Output is correct |
28 |
Correct |
1 ms |
1356 KB |
Output is correct |
29 |
Correct |
2 ms |
1356 KB |
Output is correct |
30 |
Correct |
1 ms |
1356 KB |
Output is correct |
31 |
Correct |
2 ms |
1196 KB |
Output is correct |
32 |
Correct |
1 ms |
1484 KB |
Output is correct |
33 |
Correct |
0 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
204 KB |
Output is correct |
35 |
Correct |
2 ms |
1612 KB |
Output is correct |
36 |
Correct |
2 ms |
1100 KB |
Output is correct |
37 |
Correct |
1 ms |
1100 KB |
Output is correct |
38 |
Correct |
2 ms |
1228 KB |
Output is correct |
39 |
Correct |
1 ms |
1356 KB |
Output is correct |
40 |
Correct |
0 ms |
204 KB |
Output is correct |
41 |
Correct |
1 ms |
204 KB |
Output is correct |
42 |
Correct |
0 ms |
332 KB |
Output is correct |
43 |
Correct |
38 ms |
96400 KB |
Output is correct |
44 |
Correct |
38 ms |
95948 KB |
Output is correct |
45 |
Correct |
38 ms |
96436 KB |
Output is correct |
46 |
Correct |
37 ms |
96428 KB |
Output is correct |
47 |
Correct |
47 ms |
96376 KB |
Output is correct |
48 |
Correct |
43 ms |
96004 KB |
Output is correct |
49 |
Correct |
46 ms |
95900 KB |
Output is correct |
50 |
Correct |
38 ms |
95428 KB |
Output is correct |
51 |
Correct |
38 ms |
96424 KB |
Output is correct |
52 |
Correct |
38 ms |
96328 KB |
Output is correct |
53 |
Correct |
10 ms |
26096 KB |
Output is correct |
54 |
Correct |
19 ms |
45744 KB |
Output is correct |
55 |
Correct |
27 ms |
65860 KB |
Output is correct |
56 |
Correct |
0 ms |
204 KB |
Output is correct |
57 |
Correct |
0 ms |
204 KB |
Output is correct |
58 |
Correct |
177 ms |
38284 KB |
Output is correct |
59 |
Correct |
179 ms |
48552 KB |
Output is correct |
60 |
Correct |
185 ms |
44192 KB |
Output is correct |
61 |
Correct |
168 ms |
42712 KB |
Output is correct |
62 |
Correct |
0 ms |
204 KB |
Output is correct |
63 |
Correct |
58 ms |
92680 KB |
Output is correct |
64 |
Correct |
109 ms |
80960 KB |
Output is correct |
65 |
Correct |
155 ms |
70464 KB |
Output is correct |
66 |
Correct |
163 ms |
43328 KB |
Output is correct |
67 |
Correct |
171 ms |
41684 KB |
Output is correct |
68 |
Correct |
171 ms |
44624 KB |
Output is correct |
69 |
Correct |
175 ms |
43004 KB |
Output is correct |
70 |
Correct |
198 ms |
46520 KB |
Output is correct |
71 |
Correct |
169 ms |
42344 KB |
Output is correct |
72 |
Correct |
1 ms |
204 KB |
Output is correct |
73 |
Correct |
0 ms |
204 KB |
Output is correct |