Submission #202521

#	Time	Username	Problem	Language	Result	Execution time	Memory
202521		mahmoudbadawy	Vještica (COCI16_vjestica)	C++17	160 / 160	214 ms	1784 KiB

vjestica

#include <bits/stdc++.h>

using namespace std;

const int N=16;

int mem[(1<<N)];
int cost[(1<<N)];
int co[N][26];
int n;
string arr[N];

int main()
{
	cin >> n;
	for(int i=0;i<n;i++)
	{
		cin >> arr[i];
		for(int j=0;j<arr[i].size();j++)
			co[i][arr[i][j]-'a']++;
	}
	for(int i=1;i<(1<<n);i++)
	{
		int cur[26];
		memset(cur,'?',sizeof cur);
		for(int j=0;j<n;j++)
		{
			if(i&(1<<j))
			{
				for(int k=0;k<26;k++)
				{
					cur[k]=min(cur[k],co[j][k]);
					mem[i]+=co[j][k];
				}
			}
		}
		for(int j=0;j<26;j++) cost[i]+=cur[j];
	}
	for(int i=1;i<(1<<n);i++)
	{
		for(int j=i;j>0;j=(j-1)&i)
		{
			if(j==i) continue;
			mem[i]=min(mem[i],mem[j]+mem[i^j]-cost[i]);
		}
	}
	cout << mem[(1<<n)-1]+1 << endl;
}

Compilation message (stderr)

vjestica.cpp: In function 'int main()':
vjestica.cpp:19:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<arr[i].size();j++)
               ~^~~~~~~~~~~~~~

• Subtask 1: 160 / 160