#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl "\n"
#define all(aa) aa.begin(), aa.end()
const int INF=1e8;
int n;
vector<int> ind[3];
map<pair<array<int, 3>, char>, int> dp;
int f(array<int, 3> x, char l){
if(x[0]+x[1]+x[2]==n) return 0;
if(dp.count({x, l})) return dp[{x, l}];
int minn=INF;
for(int i=0; i<3; i++) if(i!=l && x[i]!=ind[i].size()){
int o=0, s=x[0]+x[1]+x[2];
for(int j=0; j<3; j++) if(j!=i)
o+=max(0, (int)(ind[j].begin()+x[j]-upper_bound(all(ind[j]), ind[i][x[i]])));
x[i]++;
minn=min(minn, f(x, i)+o+ind[i][x[i]-1]-s);
x[i]--;
}
return dp[{x, l}]=minn;
}
int main(){
string s;
cin>>n>>s;
for(int i=0; i<n; i++){
if(s[i]=='R')
ind[0].push_back(i);
else if(s[i]=='G')
ind[1].push_back(i);
else
ind[2].push_back(i);
}
int ans=f(array<int, 3>{0, 0, 0}, 3);
cout<<(ans>=INF ? -1:ans)<<endl;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int f(std::array<int, 3>, char)':
joi2019_ho_t3.cpp:18:40: warning: comparison of integer expressions of different signedness: 'std::array<int, 3>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
18 | for(int i=0; i<3; i++) if(i!=l && x[i]!=ind[i].size()){
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
432 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
440 KB |
Output is correct |
| 12 |
Correct |
0 ms |
600 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
344 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
432 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
440 KB |
Output is correct |
| 12 |
Correct |
0 ms |
600 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
344 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 19 |
Correct |
8 ms |
1196 KB |
Output is correct |
| 20 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 21 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 22 |
Correct |
5 ms |
860 KB |
Output is correct |
| 23 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 24 |
Correct |
5 ms |
860 KB |
Output is correct |
| 25 |
Correct |
0 ms |
348 KB |
Output is correct |
| 26 |
Correct |
0 ms |
348 KB |
Output is correct |
| 27 |
Correct |
5 ms |
860 KB |
Output is correct |
| 28 |
Correct |
8 ms |
1148 KB |
Output is correct |
| 29 |
Correct |
10 ms |
1116 KB |
Output is correct |
| 30 |
Correct |
8 ms |
1260 KB |
Output is correct |
| 31 |
Correct |
8 ms |
1112 KB |
Output is correct |
| 32 |
Correct |
8 ms |
1192 KB |
Output is correct |
| 33 |
Correct |
1 ms |
600 KB |
Output is correct |
| 34 |
Correct |
1 ms |
348 KB |
Output is correct |
| 35 |
Correct |
6 ms |
860 KB |
Output is correct |
| 36 |
Correct |
8 ms |
1136 KB |
Output is correct |
| 37 |
Correct |
6 ms |
860 KB |
Output is correct |
| 38 |
Correct |
6 ms |
932 KB |
Output is correct |
| 39 |
Correct |
8 ms |
1112 KB |
Output is correct |
| 40 |
Correct |
0 ms |
348 KB |
Output is correct |
| 41 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
1 ms |
508 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
1 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
432 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
440 KB |
Output is correct |
| 12 |
Correct |
0 ms |
600 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
344 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 19 |
Correct |
8 ms |
1196 KB |
Output is correct |
| 20 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 21 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 22 |
Correct |
5 ms |
860 KB |
Output is correct |
| 23 |
Correct |
8 ms |
1116 KB |
Output is correct |
| 24 |
Correct |
5 ms |
860 KB |
Output is correct |
| 25 |
Correct |
0 ms |
348 KB |
Output is correct |
| 26 |
Correct |
0 ms |
348 KB |
Output is correct |
| 27 |
Correct |
5 ms |
860 KB |
Output is correct |
| 28 |
Correct |
8 ms |
1148 KB |
Output is correct |
| 29 |
Correct |
10 ms |
1116 KB |
Output is correct |
| 30 |
Correct |
8 ms |
1260 KB |
Output is correct |
| 31 |
Correct |
8 ms |
1112 KB |
Output is correct |
| 32 |
Correct |
8 ms |
1192 KB |
Output is correct |
| 33 |
Correct |
1 ms |
600 KB |
Output is correct |
| 34 |
Correct |
1 ms |
348 KB |
Output is correct |
| 35 |
Correct |
6 ms |
860 KB |
Output is correct |
| 36 |
Correct |
8 ms |
1136 KB |
Output is correct |
| 37 |
Correct |
6 ms |
860 KB |
Output is correct |
| 38 |
Correct |
6 ms |
932 KB |
Output is correct |
| 39 |
Correct |
8 ms |
1112 KB |
Output is correct |
| 40 |
Correct |
0 ms |
348 KB |
Output is correct |
| 41 |
Correct |
1 ms |
348 KB |
Output is correct |
| 42 |
Correct |
0 ms |
348 KB |
Output is correct |
| 43 |
Correct |
1 ms |
508 KB |
Output is correct |
| 44 |
Correct |
0 ms |
348 KB |
Output is correct |
| 45 |
Correct |
0 ms |
348 KB |
Output is correct |
| 46 |
Correct |
1 ms |
348 KB |
Output is correct |
| 47 |
Correct |
1 ms |
348 KB |
Output is correct |
| 48 |
Correct |
1 ms |
344 KB |
Output is correct |
| 49 |
Correct |
0 ms |
348 KB |
Output is correct |
| 50 |
Correct |
1 ms |
348 KB |
Output is correct |
| 51 |
Correct |
0 ms |
348 KB |
Output is correct |
| 52 |
Correct |
1 ms |
348 KB |
Output is correct |
| 53 |
Correct |
0 ms |
348 KB |
Output is correct |
| 54 |
Correct |
0 ms |
348 KB |
Output is correct |
| 55 |
Correct |
0 ms |
348 KB |
Output is correct |
| 56 |
Correct |
1 ms |
348 KB |
Output is correct |
| 57 |
Correct |
0 ms |
348 KB |
Output is correct |
| 58 |
Execution timed out |
1084 ms |
86424 KB |
Time limit exceeded |
| 59 |
Halted |
0 ms |
0 KB |
- |
