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Submission #62526

# Submission time Handle Problem Language Result Execution time Memory
62526 2018-07-28T23:57:08 Z MatheusLealV Calvinball championship (CEOI15_teams) C++17
70 / 100
 50 ms 4744 KB 
#include <bits/stdc++.h>
#define N 1001
using namespace std;
typedef long long ll;

ll n, k, v[N], tot, used[N], mod = 1000007;

int dp[N][N];

ll solve(ll i, ll k)
{
	if(i > n) return 1;

	if(dp[i][k] != -1) return dp[i][k];

	ll A = ((solve(i + 1, k) * k) % mod + solve(i + 1, k + 1) % mod)%mod;

	return dp[i][k] = A;
}

inline ll pos()
{
	set<ll> add;

	ll q;

	memset(dp, -1, sizeof dp);

	for(ll i = 1; i <= n; i++)
	{
		tot = (tot + solve(i + 1, add.size())*(v[i] - 1) )%mod;

		add.insert(v[i]);
	}

	return (tot + 1)%mod;
}

int main()
{
	ios::sync_with_stdio(false); cin.tie(0);

	cin>>n;

	ll s = 0;

	for(ll i = 1; i <= n; i++)
	{
		cin>>v[i];

		if(!used[v[i]]) k++;

		used[v[i]] = 1;

		s = (s + solve(n, i))%mod;
	}

	cout<<pos()<<"\n";
}

Compilation message

teams.cpp: In function 'll pos()':
teams.cpp:25:5: warning: unused variable 'q' [-Wunused-variable]
  ll q;
     ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4216 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 5 ms 4360 KB Output is correct
4 Correct 7 ms 4360 KB Output is correct
5 Correct 6 ms 4360 KB Output is correct
6 Correct 7 ms 4436 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4464 KB Output is correct
2 Correct 7 ms 4464 KB Output is correct
3 Correct 7 ms 4516 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4516 KB Output is correct
2 Correct 7 ms 4516 KB Output is correct
3 Correct 7 ms 4516 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4516 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4516 KB Output is correct
2 Correct 7 ms 4516 KB Output is correct
3 Correct 7 ms 4516 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 4576 KB Output is correct
2 Correct 15 ms 4576 KB Output is correct
3 Correct 15 ms 4604 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 4608 KB Output is correct
2 Correct 48 ms 4744 KB Output is correct
3 Correct 37 ms 4744 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 4744 KB Execution killed with signal 11 (could be triggered by violating memory limits)

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 4744 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 4744 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -