Submission #5915909
Source Code Expand
#include <bits/stdc++.h>
#include <vector>
#include <numeric>
#define PI 3.14159265358979323846
#define MAXINF (1e18L)
#define INF (1e9L)
#define EPS (1e-9)
#define MOD (1e9+7)
#define REP(i, n) for(int i=0;i<int(n);++i)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define RREP(i, n) for(int i=int(n)-1;i>=0;--i)
#define ALL(v) v.begin(),v.end()
#define FIND(v,x) (binary_search(ALL(v),(x)))
#define SORT(v) sort(ALL(v))
#define RSORT(v) sort(ALL(v));reverse(ALL(v))
#define DEBUG(x) cerr<<#x<<": "<<x<<endl;
#define DEBUG_VEC(v) cerr<<#v<<":";for(int i=0;i<v.size();i++) cerr<<" "<<v[i]; cerr<<endl
#define Yes(n) cout<<((n)?"Yes":"No")<<endl
#define YES(n) cout<<((n)?"YES":"NO")<<endl
#define pb push_back
#define fi first
#define se second
using namespace std;
template<class A>void pr(A a){cout << (a) << endl;}
template<class A,class B>void pr(A a,B b){cout << a << " " ;pr(b);}
template<class A,class B,class C>void pr(A a,B b,C c){cout << a << " " ;pr(b,c);}
template<class A,class B,class C,class D>void pr(A a,B b,C c,D d){cout << a << " " ;pr(b,c,d);}
typedef long long ll;
typedef pair<int, int> pii;
int main(void)
{
string s;
cin >> s;
vector<vector<int>> dp(s.size()+1, vector<int>(s.size()+1, 0));
int const n = s.size();
// [l, r)
Rep(r, 0, n+1){
REP(l, r+1){
if(r<l)continue;
for(int i = l; i <= r; ++i) {
dp[l][r] = max(dp[l][r], dp[l][i] + dp[i][r]);
}
if(r-l != dp[l][r]) continue;
for (int d = 0; d < 4; d++)
{
if(l-3+d < 0 || r+d>n)continue;
string iwi = s.substr(l-3+d,3-d) + s.substr(r, d);
if(iwi=="iwi"){
dp[l-3+d][r+d] = max(dp[l-3+d][r+d] , dp[l][r] + 3);
}
}
}
}
int ans = 0;
REP(l, s.size()+1){
REP(r, s.size()+1){
ans=max(dp[l][r],ans);
// cout << dp[l][r] << " ";
}
// cout << endl;
}
pr(ans/3);
}
Submission Info
Submission Time |
|
Task |
I - イウィ |
User |
Shun2019 |
Language |
C++14 (GCC 5.4.1) |
Score |
5 |
Code Size |
2095 Byte |
Status |
AC |
Exec Time |
8 ms |
Memory |
768 KB |
Judge Result
Set Name |
All |
Score / Max Score |
5 / 5 |
Status |
|
Set Name |
Test Cases |
All |
00, 01, 02, 03, 04, 90, 91 |
Case Name |
Status |
Exec Time |
Memory |
00 |
AC |
8 ms |
640 KB |
01 |
AC |
8 ms |
640 KB |
02 |
AC |
8 ms |
640 KB |
03 |
AC |
8 ms |
768 KB |
04 |
AC |
7 ms |
512 KB |
90 |
AC |
1 ms |
256 KB |
91 |
AC |
1 ms |
256 KB |