CSES - Datatähti 2022 alku - Results
Submission details
Task:Ositus (Partitioning)
Sender:LiminalAlien
Submission time:2021-10-15 18:48:24
Language:C++11
Status:READY
Result:40
Feedback
groupverdictscore
#1ACCEPTED40
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#50.01 s2, 3details
#60.01 s3details
#70.03 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:25:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (ll i=0;i<s.size();i++)
               ~^~~~~~~~~

Code

using namespace std;
#include <iostream>
#include <vector>
#include <set>
#include <queue>

#define ll long long

ll M = 1e9 + 7, x = 0;

int main()
{
	string s;
	cin >> s;
	ll n = s.size() - 1;
	for (ll b = 0; b < (1 << n); b++)
	{
		queue<ll> v;
		for (ll i = 0; i < n; i++)
		{
			if (b & (1 << i))v.push(i+1);
		}
		bool b1 = true;
		string t;
		for (ll i=0;i<s.size();i++)
		{
			t.push_back(s[i]);
			if (!v.empty())
			{
				if (v.front() == i + 1)
				{
					set<char> st(t.begin(), t.end()); v.pop();
					if (st.size() < t.size())
					{
						b1 = false; break;
					}
					t.clear();
				}
			}
		}
		if (b1)
		{
			set<char> st(t.begin(), t.end());
			if (st.size() < t.size())b1 = false;
		}
		if (b1)x++;
	}
	cout << x % M;
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
a

correct output
1

user output
1

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
abcdefghij

correct output
512

user output
512

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
abcabaacbc

correct output
120

user output
120

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
aaxxxxxxaa

correct output
4

user output
4

Test 5

Group: 2, 3

Verdict:

input
mfyzvoxmppoxcvktmcjkryyocfweub...

correct output
643221148

user output
0

Test 6

Group: 3

Verdict:

input
weinscqmmpgbrlboocvtbptgbahmwv...

correct output
831644159

user output
0

Test 7

Group: 3

Verdict:

input
sxaoxcyrjoeieyinaqxwukgzdnhhsw...

correct output
816016015

user output
0