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Submission #891783

# Submission time Handle Problem Language Result Execution time Memory
891783 2023-12-24T03:58:08 Z harao Vještica (COCI16_vjestica) C++17
48 / 160
 1 ms 860 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = (1 << 11);

int n;
int a[100][30], s[20];
int dp[N], f[N];

int calc(int mask)
{
	if(dp[mask] != -1) return dp[mask];
	if(mask == 0) return 0;
	if(__builtin_popcount(mask) == 1)
	{
		int i = 0;
		for(i; i < n; i++)
			if((mask >> i) & 1)break;
		return s[i];
	}

	for(int j = 0;j < 26; j ++)
	{
		int x = 1e9 + 7;
		for(int i = 0; i < n; i ++)
			if((mask >> i) & 1)
				x = min(a[i][j], x);
		f[mask] += x;
	}


	int ans = 1e9 + 7;

	for(int i = (mask - 1) & mask; i > 0; i = (i - 1) & mask)
		ans = min(ans, calc(i) + calc(mask ^ i) - f[mask]);

	return dp[mask] = ans;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

//    freopen(".inp", "r", stdin);
//    freopen(".out", "w", stdout);

	memset(dp, -1, sizeof dp);
	cin >> n;
	for(int i = 0; i < n; i++)
	{
		string t;
		cin >> t;
		s[i] = t.size();
		for(char c : t) a[i][c - 'a'] ++;
	}
	cout << calc((1 << n) - 1) + 1;
	return 0;
}

Compilation message

vjestica.cpp: In function 'int calc(int)':
vjestica.cpp:17:7: warning: statement has no effect [-Wunused-value]
   17 |   for(i; i < n; i++)
      |       ^

Subtask #1
48.0 / 160.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Runtime error 1 ms 600 KB Execution killed with signal 11
5 Runtime error 1 ms 604 KB Execution killed with signal 11
6 Runtime error 1 ms 604 KB Execution killed with signal 11
7 Runtime error 1 ms 856 KB Execution killed with signal 11
8 Runtime error 1 ms 860 KB Execution killed with signal 11
9 Runtime error 1 ms 852 KB Execution killed with signal 11
10 Runtime error 1 ms 860 KB Execution killed with signal 11