oj.uz

Submission #146102

# Submission time Handle Problem Language Result Execution time Memory
146102 2019-08-22T06:36:26 Z miguel Calvinball championship (CEOI15_teams) C++14
100 / 100
 324 ms 760 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 = 1000007;
const ll nmax=100010;
#define int ll
int n, a[10010];
int dp[2][10010], mx, pr=-1;//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+1, a[i]);
		for(int v=0; 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++){
			dp[0][0]=0;
			//cout<<v<<" "<<dp[1][v]<<endl;
			dp[0][v]=dp[1][v];
		}
	}
	int ans=0LL;
	for(int i=1; i<=mx; i++) ans+=dp[1][i], ans%=mod;
	cout<<(ans+1LL)%mod;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 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
10.0 / 10.0

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

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 380 KB Output is correct

Subtask #7
10.0 / 10.0

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

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 314 ms 684 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 492 KB Output is correct
2 Correct 81 ms 552 KB Output is correct
3 Correct 81 ms 512 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 324 ms 632 KB Output is correct
2 Correct 323 ms 760 KB Output is correct
3 Correct 323 ms 760 KB Output is correct