oj.uz

Submission #145920

# Submission time Handle Problem Language Result Execution time Memory
145920 2019-08-21T11:17:15 Z miguel Calvinball championship (CEOI15_teams) C++14
10 / 100
 254 ms 716 KB 
/*
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#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define dbg(x) cout << #x << '=' << x << '\n';
#define ll long long
#define x first
#define y second
#define pi pair <int, int>
#define vi vector <int>
const ll mod = 1000000007;
const ll nmax=100010;
#define int ll
int n, a[10010];
int dp[2][10010], mx, pr;//idx, max, eq or not

int32_t main(){
    ios_base :: sync_with_stdio(0); cin.tie(); cout.tie();
    cin>>n;
    for(int i=1; i<=n; i++) cin>>a[i];
    dp[0][0]=0;
    for(int i=1; i<=n; i++){
		pr=max(pr, a[i-1]);
		mx=max(mx, a[i]);
		for(int v=1; v<=mx; v++) dp[1][v]=0;
		for(int v=1; v<=mx; v++){
			dp[1][v]+=(dp[0][v-1]+dp[0][v]*v)%mod;
			dp[1][v]%=mod;
		}
		dp[1][pr]+=min(pr, a[i]-1);
		if(pr+1<a[i]) dp[1][pr+1]++;
		//dbg(i);
		for(int v=1; v<=mx; v++){
			//cout<<v<<" "<<dp[1][v]<<endl;
			dp[0][v]=dp[1][v];
		}
	}
	int ans=0;
	for(int i=1; i<=mx; i++) ans+=dp[1][i], ans%=mod;
	cout<<(ans+1)%mod;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct

Subtask #2
0 / 10.0

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

Subtask #3
0 / 10.0

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

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct

Subtask #5
0 / 10.0

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

Subtask #6
0 / 10.0

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

Subtask #7
0 / 10.0

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

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 254 ms 716 KB Output isn't correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -