#include<stdio.h>
#include<algorithm>
using namespace std;
#define MAXN 405
const long long LINF=2123456789012345678ll;
char inp[MAXN];
int R[MAXN], G[MAXN], Y[MAXN], rn, gn, yn;
int rs[MAXN], gs[MAXN], ys[MAXN];
long long dp[MAXN][MAXN][MAXN][3];
void gmn(long long &x, long long y){
x=min(x, y);
}
int main(){
int N;
long long ans=LINF;
scanf("%d\n%s", &N, inp);
for(int i=0; i<N; i++){
if(inp[i]=='R') R[++rn]=i;
if(inp[i]=='G') G[++gn]=i;
if(inp[i]=='Y') Y[++yn]=i;
rs[i]=rn;
gs[i]=gn;
ys[i]=yn;
}
//for(int i=0; i<N; i++) printf("%d ", rs[i]);
for(int r=0; r<=rn; r++) for(int g=0; g<=gn; g++) for(int y=0; y<=yn; y++) for(int i=0; i<3; i++){
//printf("[%d %d %d %d]\n", r, g, y, i);
if(r+g+y==0) dp[r][g][y][i]=0ll;
else{
dp[r][g][y][i]=LINF;
if(i==0&&r>0) gmn(dp[r][g][y][i], min(dp[r-1][g][y][1], dp[r-1][g][y][2])+max(0, gs[R[r]]-g)+max(0, ys[R[r]]-y));
if(i==1&&g>0) gmn(dp[r][g][y][i], min(dp[r][g-1][y][0], dp[r][g-1][y][2])+max(0, rs[G[g]]-r)+max(0, ys[G[g]]-y));
if(i==2&&y>0) gmn(dp[r][g][y][i], min(dp[r][g][y-1][0], dp[r][g][y-1][1])+max(0, rs[Y[y]]-r)+max(0, gs[Y[y]]-g));
}
//if(dp[r][g][y][i]==0ll) printf("dp[%d][%d][%d][%d]=%lld\n", r, g, y, i, dp[r][g][y][i]);
}
for(int i=0; i<3; i++) gmn(ans, dp[rn][gn][yn][i]);
printf("%lld", ans==LINF?-1ll:ans);
return 0;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d\n%s", &N, inp);
~~~~~^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
256 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
512 KB |
Output is correct |
| 6 |
Correct |
2 ms |
512 KB |
Output is correct |
| 7 |
Correct |
2 ms |
512 KB |
Output is correct |
| 8 |
Correct |
2 ms |
512 KB |
Output is correct |
| 9 |
Correct |
2 ms |
640 KB |
Output is correct |
| 10 |
Correct |
2 ms |
640 KB |
Output is correct |
| 11 |
Correct |
2 ms |
512 KB |
Output is correct |
| 12 |
Correct |
2 ms |
512 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
512 KB |
Output is correct |
| 15 |
Correct |
2 ms |
512 KB |
Output is correct |
| 16 |
Correct |
2 ms |
512 KB |
Output is correct |
| 17 |
Correct |
2 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
256 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
512 KB |
Output is correct |
| 6 |
Correct |
2 ms |
512 KB |
Output is correct |
| 7 |
Correct |
2 ms |
512 KB |
Output is correct |
| 8 |
Correct |
2 ms |
512 KB |
Output is correct |
| 9 |
Correct |
2 ms |
640 KB |
Output is correct |
| 10 |
Correct |
2 ms |
640 KB |
Output is correct |
| 11 |
Correct |
2 ms |
512 KB |
Output is correct |
| 12 |
Correct |
2 ms |
512 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
512 KB |
Output is correct |
| 15 |
Correct |
2 ms |
512 KB |
Output is correct |
| 16 |
Correct |
2 ms |
512 KB |
Output is correct |
| 17 |
Correct |
2 ms |
384 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 19 |
Correct |
3 ms |
2048 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2460 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2560 KB |
Output is correct |
| 22 |
Correct |
3 ms |
1792 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2304 KB |
Output is correct |
| 24 |
Correct |
3 ms |
1664 KB |
Output is correct |
| 25 |
Correct |
4 ms |
4096 KB |
Output is correct |
| 26 |
Correct |
4 ms |
4224 KB |
Output is correct |
| 27 |
Correct |
4 ms |
3200 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2432 KB |
Output is correct |
| 30 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 31 |
Correct |
3 ms |
2176 KB |
Output is correct |
| 32 |
Correct |
3 ms |
2560 KB |
Output is correct |
| 33 |
Correct |
4 ms |
3968 KB |
Output is correct |
| 34 |
Correct |
4 ms |
3712 KB |
Output is correct |
| 35 |
Correct |
4 ms |
2816 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2048 KB |
Output is correct |
| 37 |
Correct |
4 ms |
1920 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2304 KB |
Output is correct |
| 39 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 40 |
Correct |
2 ms |
384 KB |
Output is correct |
| 41 |
Correct |
3 ms |
2304 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
110 ms |
164060 KB |
Output is correct |
| 3 |
Correct |
107 ms |
163320 KB |
Output is correct |
| 4 |
Correct |
113 ms |
164072 KB |
Output is correct |
| 5 |
Correct |
118 ms |
164124 KB |
Output is correct |
| 6 |
Correct |
115 ms |
164060 KB |
Output is correct |
| 7 |
Correct |
111 ms |
163260 KB |
Output is correct |
| 8 |
Correct |
111 ms |
163176 KB |
Output is correct |
| 9 |
Correct |
112 ms |
162400 KB |
Output is correct |
| 10 |
Correct |
113 ms |
163984 KB |
Output is correct |
| 11 |
Correct |
112 ms |
164220 KB |
Output is correct |
| 12 |
Correct |
31 ms |
44404 KB |
Output is correct |
| 13 |
Correct |
53 ms |
77688 KB |
Output is correct |
| 14 |
Correct |
76 ms |
112120 KB |
Output is correct |
| 15 |
Correct |
108 ms |
163960 KB |
Output is correct |
| 16 |
Correct |
108 ms |
164088 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
256 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
512 KB |
Output is correct |
| 6 |
Correct |
2 ms |
512 KB |
Output is correct |
| 7 |
Correct |
2 ms |
512 KB |
Output is correct |
| 8 |
Correct |
2 ms |
512 KB |
Output is correct |
| 9 |
Correct |
2 ms |
640 KB |
Output is correct |
| 10 |
Correct |
2 ms |
640 KB |
Output is correct |
| 11 |
Correct |
2 ms |
512 KB |
Output is correct |
| 12 |
Correct |
2 ms |
512 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
512 KB |
Output is correct |
| 15 |
Correct |
2 ms |
512 KB |
Output is correct |
| 16 |
Correct |
2 ms |
512 KB |
Output is correct |
| 17 |
Correct |
2 ms |
384 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 19 |
Correct |
3 ms |
2048 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2460 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2560 KB |
Output is correct |
| 22 |
Correct |
3 ms |
1792 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2304 KB |
Output is correct |
| 24 |
Correct |
3 ms |
1664 KB |
Output is correct |
| 25 |
Correct |
4 ms |
4096 KB |
Output is correct |
| 26 |
Correct |
4 ms |
4224 KB |
Output is correct |
| 27 |
Correct |
4 ms |
3200 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2432 KB |
Output is correct |
| 30 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 31 |
Correct |
3 ms |
2176 KB |
Output is correct |
| 32 |
Correct |
3 ms |
2560 KB |
Output is correct |
| 33 |
Correct |
4 ms |
3968 KB |
Output is correct |
| 34 |
Correct |
4 ms |
3712 KB |
Output is correct |
| 35 |
Correct |
4 ms |
2816 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2048 KB |
Output is correct |
| 37 |
Correct |
4 ms |
1920 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2304 KB |
Output is correct |
| 39 |
Correct |
3 ms |
2432 KB |
Output is correct |
| 40 |
Correct |
2 ms |
384 KB |
Output is correct |
| 41 |
Correct |
3 ms |
2304 KB |
Output is correct |
| 42 |
Correct |
2 ms |
384 KB |
Output is correct |
| 43 |
Correct |
110 ms |
164060 KB |
Output is correct |
| 44 |
Correct |
107 ms |
163320 KB |
Output is correct |
| 45 |
Correct |
113 ms |
164072 KB |
Output is correct |
| 46 |
Correct |
118 ms |
164124 KB |
Output is correct |
| 47 |
Correct |
115 ms |
164060 KB |
Output is correct |
| 48 |
Correct |
111 ms |
163260 KB |
Output is correct |
| 49 |
Correct |
111 ms |
163176 KB |
Output is correct |
| 50 |
Correct |
112 ms |
162400 KB |
Output is correct |
| 51 |
Correct |
113 ms |
163984 KB |
Output is correct |
| 52 |
Correct |
112 ms |
164220 KB |
Output is correct |
| 53 |
Correct |
31 ms |
44404 KB |
Output is correct |
| 54 |
Correct |
53 ms |
77688 KB |
Output is correct |
| 55 |
Correct |
76 ms |
112120 KB |
Output is correct |
| 56 |
Correct |
108 ms |
163960 KB |
Output is correct |
| 57 |
Correct |
108 ms |
164088 KB |
Output is correct |
| 58 |
Correct |
105 ms |
120640 KB |
Output is correct |
| 59 |
Correct |
120 ms |
138004 KB |
Output is correct |
| 60 |
Correct |
112 ms |
130032 KB |
Output is correct |
| 61 |
Correct |
115 ms |
128296 KB |
Output is correct |
| 62 |
Correct |
112 ms |
163704 KB |
Output is correct |
| 63 |
Correct |
114 ms |
164904 KB |
Output is correct |
| 64 |
Correct |
120 ms |
164600 KB |
Output is correct |
| 65 |
Correct |
126 ms |
159096 KB |
Output is correct |
| 66 |
Correct |
113 ms |
128376 KB |
Output is correct |
| 67 |
Correct |
106 ms |
125660 KB |
Output is correct |
| 68 |
Correct |
113 ms |
131396 KB |
Output is correct |
| 69 |
Correct |
110 ms |
129012 KB |
Output is correct |
| 70 |
Correct |
114 ms |
134904 KB |
Output is correct |
| 71 |
Correct |
107 ms |
126288 KB |
Output is correct |
| 72 |
Correct |
41 ms |
49692 KB |
Output is correct |
| 73 |
Correct |
7 ms |
5504 KB |
Output is correct |
