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Submission #63642

# Submission time Handle Problem Language Result Execution time Memory
63642 2018-08-02T10:27:51 Z khohko Calvinball championship (CEOI15_teams) C++17
0 / 100
 1000 ms 66560 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define fr first
#define sc second
#define ARRS ((ll)(2e6+500))
#define MAX ((ll)(1e6+100))
#define MOD ((ll)1e9+7)
#define mi(a,b) a=min((a),(b))

ll n,m,k,p,l,r,q;
ll a[ARRS];
int f[10001][10001][2];

ll slv(ll i,ll c,ll e=0){
	if(i==n)return 1;
	if(f[i][c][e])return f[i][c][e]-1;
	if(e){
		f[i][c][e]=c*slv(i+1,c,e)+slv(i+1,c+1,e);
		return f[i][c][e]-1;
	}
	else {
		ll pas=0;
		if(a[i]==c+1){
			pas+=c*slv(i+1,c,1);
			pas+=slv(i+1,c+1,0);
		}
		else {
			pas+=(a[i]-1)*slv(i+1,c,1);
			pas+=slv(i+1,c,0);
		}
		pas%=MOD;
		f[i][c][e]=pas+1;
		return pas;
	}
}

int main(){
	#ifdef KHOKHO
			freopen("in.in","r",stdin);
			freopen("out.out","w",stdout);
	#endif
	cin>>n;
	for(int i=0; i<n; i++)cin>>a[i];
	cout<<slv(0,0,0);
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 3 ms 452 KB Output is correct
3 Incorrect 3 ms 452 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Incorrect 3 ms 468 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 648 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 980 KB Output isn't correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 3668 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 30 ms 8660 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1067 ms 66560 KB Time limit exceeded

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1014 ms 66560 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1046 ms 66560 KB Time limit exceeded
2 Halted 0 ms 0 KB -