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Submission #527289

# Submission time Handle Problem Language Result Execution time Memory
527289 2022-02-17T05:24:36 Z beepbeepsheep Calvinball championship (CEOI15_teams) C++17
60 / 100
 1000 ms 8268 KB 
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define ll long long
#define ii pair<ll,ll>
#define endl '\n'
const ll inf=1e15;
const ll mod=1e6+7;
const ll maxn=1005;

ll dp[maxn][maxn];
ll expo(ll n, ll x){
    if (x==0) return 1;
    if (x==1) return n;
    ll temp=expo(n,x/2);
    if (x&1){
        return (temp*(temp*n)%mod)%mod;
    }
    return (temp*temp)%mod;
}
ll solve(ll digit, ll rem){
    if (rem==0) return 1;
    if (dp[digit][rem]!=-1) return dp[digit][rem];
    ll ans=0;
    for (int i=1;i<=rem;i++){
        ans+=solve(digit+1,rem-i)*expo(digit,i-1);
        ans%=mod;
    }
    ans+=expo(digit,rem);
    ans%=mod;
    return dp[digit][rem]=ans%mod;
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll n,ele,ans=0;
    cin>>n;
    ll ele2=0,temp;
    memset(dp,-1,sizeof(dp));
    for (int i=1;i<=n;i++){
        cin>>ele;
        for (int j=1;j<ele;j++){
            temp=max<ll>(j,ele2);
            ans+=solve(temp,n-i);
            ans%=mod;
        }
        ele2=max(ele,ele2);
    }
    cout<<(ans+1)%mod;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8140 KB Output is correct
2 Correct 3 ms 8140 KB Output is correct
3 Correct 4 ms 8140 KB Output is correct
4 Correct 4 ms 8140 KB Output is correct
5 Correct 3 ms 8140 KB Output is correct
6 Correct 4 ms 8140 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8140 KB Output is correct
2 Correct 3 ms 8140 KB Output is correct
3 Correct 4 ms 8140 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8140 KB Output is correct
2 Correct 4 ms 8140 KB Output is correct
3 Correct 4 ms 8140 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 8140 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8140 KB Output is correct
2 Correct 6 ms 8140 KB Output is correct
3 Correct 5 ms 8140 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 482 ms 8244 KB Output is correct
2 Correct 474 ms 8244 KB Output is correct
3 Correct 473 ms 8240 KB Output is correct

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1089 ms 8268 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1073 ms 8268 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1071 ms 8268 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 1036 ms 8268 KB Time limit exceeded
2 Halted 0 ms 0 KB -