# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
293350 |
2020-09-08T00:15:44 Z |
Hemimor |
Miners (IOI07_miners) |
C++14 |
|
158 ms |
688 KB |
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <numeric>
#include <vector>
#include <cmath>
#include <queue>
#include <set>
#include <map>
#define syosu(x) fixed<<setprecision(x)
using namespace std;
typedef long long ll;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef pair<double,double> pdd;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<string> vs;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<pll> vpll;
typedef pair<P,int> pip;
typedef vector<pip> vip;
const int inf=1<<30;
const ll INF=1ll<<60;
const double pi=acos(-1);
const double eps=1e-8;
const ll mod=1e9+7;
const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1};
int f(int i,int j,int k){
if(j==3) j=i;
if(k==3) k=i;
if(i==j&&j==k) return 1;
if(i==j||j==k||k==i) return 2;
return 3;
}
int n,dp[4][4][4][4];
string s;
int main(){
cin>>n>>s;
for(int i=0;i<4;i++) for(int j=0;j<4;j++) for(int k=0;k<4;k++) for(int l=0;l<4;l++) dp[i][j][k][l]=-inf;
dp[3][3][3][3]=0;
for(auto c:s){
int v;
if(c=='M') v=0;
if(c=='F') v=1;
if(c=='B') v=2;
int DP[4][4][4][4];
for(int i=0;i<4;i++) for(int j=0;j<4;j++) for(int k=0;k<4;k++) for(int l=0;l<4;l++) DP[i][j][k][l]=-inf;
for(int i=0;i<4;i++) for(int j=0;j<4;j++) for(int k=0;k<4;k++) for(int l=0;l<4;l++){
DP[v][i][k][l]=max(DP[v][i][k][l],dp[i][j][k][l]+f(v,i,j));
DP[i][j][v][k]=max(DP[i][j][v][k],dp[i][j][k][l]+f(v,k,l));
}
swap(dp,DP);
}
int res=0;
for(int i=0;i<4;i++) for(int j=0;j<4;j++) for(int k=0;k<4;k++) for(int l=0;l<4;l++) res=max(res,dp[i][j][k][l]);
cout<<res<<endl;
}
Compilation message
miners.cpp: In function 'int main()':
miners.cpp:40:2: warning: 'v' may be used uninitialized in this function [-Wmaybe-uninitialized]
40 | if(i==j&&j==k) return 1;
| ^~
miners.cpp:53:7: note: 'v' was declared here
53 | int v;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
20 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
43 ms |
504 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
116 ms |
688 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
158 ms |
684 KB |
Output is correct |