oj.uz

Submission #623109

# Submission time Handle Problem Language Result Execution time Memory
623109 2022-08-05T08:07:47 Z inksamurai Vještica (COCI16_vjestica) C++17
160 / 160
 112 ms 1108 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3SgiE60 ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e

const int inf=1e9;

signed main(){
_3SgiE60;
	int n;
	cin>>n;
	vec(vi) a(n,vi(26));
	vi dp((1<<n),inf);
	rep(i,n){
		string s;
		cin>>s;
		dp[(1<<i)]=sz(s);
		rep(j,sz(s)){
			a[i][s[j]-'a']+=1;
		}
	}
	rep(msk,(1<<n)){
		vi rbe(26,1e9);
		int sun=0;
		rep(ch,26){
			rep(i,n){
				if(msk>>i&1){
					rbe[ch]=min(rbe[ch],a[i][ch]);			
				}
			}
			sun+=rbe[ch];
		}
		for(int nmsk=msk;nmsk;nmsk=(nmsk-1)&msk){
			int now=dp[nmsk]+dp[msk^nmsk];
			// if(msk==3) print(msk,nmsk);
			now-=sun;
			dp[msk]=min(dp[msk],now);
		}
	}
	// print(dp[3]);
	print(dp[(1<<n)-1]+1);
}

Subtask #1
160.0 / 160.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 104 ms 596 KB Output is correct
5 Correct 101 ms 596 KB Output is correct
6 Correct 112 ms 888 KB Output is correct
7 Correct 106 ms 980 KB Output is correct
8 Correct 105 ms 1108 KB Output is correct
9 Correct 107 ms 1104 KB Output is correct
10 Correct 103 ms 1108 KB Output is correct